Free Online Utility Tools
A collection of powerful, easy-to-use tools to help you work smarter and faster. No sign-up required.
Developer & DevOps Tools
100Code converters, schema generators, network inspectors, and cloud infrastructure utilities.
Robot Voice Generator
Generate robot voice from text with adjustable pitch and speed. Perfect for videos, games, and animations.
Iframe Generator
Generate responsive, secure iframe embed code with sandbox flags, lazy loading, and live preview.
XML Validator
Validate, prettify, highlight, and minify XML feeds, SOAP envelopes, and sitemaps before deployment.
WordPress Hash Generator
Generate and verify WordPress-compatible phpass hashes with configurable iteration rounds right in the browser.
YAML to JSON Converter
Convert YAML to JSON with real-time validation and syntax highlighting
CSS Minifier
Minify your CSS code instantly and reduce file size.
QR Code Generator
Generate QR codes for URLs, text, and more.
URL Encoder & Decoder
Encode and decode URLs instantly.
Base64 Converter
Encode and decode Base64 strings instantly.
JSON Formatter & Validator
Format, validate, and beautify your JSON data.
JWT Token Decoder
Decode and verify JWT tokens instantly.
Random String Generator
Generate bulk random strings with custom charset, prefix-suffix rules, and export options.
Markdown to HTML Converter
Convert Markdown text to HTML with live preview.
Convert Timestamp to Date-Time
Quickly convert UNIX timestamps to human-readable dates.
API Endpoint Tester
Test your API endpoints with different HTTP methods, headers, and request body.
UUID Generator Tool
Generate RFC 4122 compliant UUIDs for developers. Support for v1, v4, and v5 versions.
Regex Pattern Validator
Test and validate regex patterns with live matching and syntax highlighting.
Binary Code Translator
Convert text to binary code and binary to text instantly with character breakdown.
IP Lookup Tool
Reveal geolocation, ISP, ASN, timezone, and security signals for any IPv4 or IPv6 address.
ASCII to HEX Converter
Translate ASCII strings to hexadecimal bytes or decode hex payloads back to text with live formatting controls.
WhatsApp Link Generator
Create click-to-chat WhatsApp links with a pre-filled message.
URL Parser
Break down a URL into protocol, host, path, query, and hash.
HTTP Status Code Explainer
Look up HTTP status codes and their meanings quickly.
HTTP Header Checker
Inspect response headers, redirects, and security header coverage for any URL.
Browser Window Size Checker
Measure viewport width, height, DPR, and active responsive breakpoint live.
Screen Resolution Tester
Preview websites at common device sizes and custom viewport dimensions.
DNS Lookup Tool
Lookup A, AAAA, MX, NS, TXT, and CNAME records with resolver diagnostics.
MX Lookup Tool
Check mail exchange records and routing priorities for any domain.
NS Lookup Tool
Verify authoritative nameserver delegation for domains and migrations.
Reverse IP Lookup Tool
Resolve PTR records to map IPv4/IPv6 addresses to hostnames.
MAC Address Lookup Tool
Find OUI vendor details from MAC address prefixes.
Domain IP Lookup
Find IPv4 and IPv6 addresses for any website or hostname from DNS records.
JSON Path Tester
Evaluate JSONPath expressions against JSON payloads and inspect matched nodes.
IEEE-754 Analysis Tool
Break float32 and float64 values into sign, exponent, and mantissa bits.
URI Template Parser
Expand URI templates into real URLs with editable variables and copy-ready output.
Redirect Generator
Generate 301 and 302 redirect snippets for Apache, Nginx, Netlify, Vercel, JS, and HTML.
HTML Viewer
Paste raw HTML and preview the rendered output instantly inside a safe iframe.
Random JSON Generator
Generate random JSON objects for testing and prototyping.
Fake Credit Card Generator
Generate fake credit card numbers for testing payment forms and development.
HTML Entity Encoder Decoder
Encode or decode HTML entities for safe web display
Regex Pattern Generator
Create and test regular expressions for email validation, phone numbers, passwords, and more.
IP Address Generator
Generate random IP addresses for testing, development, and network simulation.
Random MAC Address Generator
Generate random MAC addresses with OUI prefix lock, multicast-unicast controls, and bulk export.
Credit Card Validator
Validate credit card numbers using Luhn algorithm. Check card type and validity.
Unicode Text Converter
Inspect Unicode code points, formats, and character names for any string.
HTML Minifier
Compress HTML by removing comments and collapsing whitespace with live byte savings.
.htaccess Redirect Generator
Generate 301, 302, HTTPS, and WWW rewrite rules for Apache web servers
CSV to JSON Converter
Convert CSV spreadsheets into clean, formatted JSON arrays or objects
JavaScript Minifier
Minify JavaScript code to reduce file size and increase load speed
SQL Formatter & Prettifier
Format, beautify, and clean up unformatted SQL queries for MySQL, Postgres, and SQLite
Markdown Table Generator & CSV Converter
Create, format, and convert Markdown tables visually for GitHub READMEs and docs
Cron Expression Generator & Explainer
Build, test, and translate crontab cron expressions with instant plain-English explanations
User Agent Parser & Detector
Parse HTTP User-Agent strings to detect browser, version, OS, engine, and device type
cURL to JavaScript Fetch & Axios Converter
Convert cURL commands into JavaScript fetch(), Axios, Python requests, and PHP code
CSS Clamp() Calculator & Fluid Typography Generator
Calculate CSS clamp() formulas for responsive fluid typography and spacing
JSON to TypeScript Interface Generator
Convert raw JSON objects into strongly-typed TypeScript interfaces and type aliases
Subnet Calculator (IPv4 CIDR & Netmask)
Calculate IPv4 subnets, CIDR blocks, usable host ranges, broadcast addresses, and binary netmasks
Regex Tester & Regular Expression Matcher
Test, evaluate, and debug regular expressions in real-time with capture groups and regex flags
Cron Expression Explainer & Schedule Humanizer
Translate crontab schedules into plain English sentences and calculate upcoming execution timestamps
UTM Parameter Parser & URL Builder
Inspect, parse, edit, and rebuild Google Analytics UTM tracking links and query parameters
Linux Chmod Permissions Calculator
Generate octal and symbolic Linux file permissions with copyable bash terminal commands
CSV to SQL Converter & Table Generator
Convert CSV data into SQL CREATE TABLE schemas and multi-row batch INSERT INTO statements
Code to Image Converter
Convert code snippets into beautiful social media screenshots with themes, gradients, and window frames
HTML to JSX Converter
Transform standard HTML5 and SVG code into clean React JSX with className mapping and style objects
Dummy JSON Generator
Generate realistic mock JSON datasets for frontend UI prototypes, database seeding, and REST API testing
SVG Path Visualizer & Inspector
Inspect and visualize SVG path commands (M, L, C, Z) on an interactive coordinate grid with length calculation
SVG Optimizer & Minifier
Clean and minify bloated SVG vector code from Illustrator and Figma for high-speed web production
Barcode Generator & Label Maker
Generate scannable Code 128 barcodes for retail products, inventory SKUs, and badges with SVG/PNG download
Audio Tone Generator & Frequency Synthesizer
Generate pure sound frequencies from 20 Hz to 20,000 Hz with real-time oscilloscope waveform visualizer
.env to Docker Compose Converter
Transform .env files into Docker Compose configurations and generate sanitized .env.example templates
NGINX Config Generator
Generate production-ready NGINX server blocks for reverse proxies, Single Page Apps, SSL/TLS, and WebSockets
Dockerfile Generator
Generate optimized, multi-stage Dockerfiles with security hardening, layer caching, and automatic .dockerignore creation
CIDR IP Range Calculator
Calculate IPv4 subnet ranges, network addresses, broadcast boundaries, usable hosts, and binary bitmasks
JSON to Zod Schema Converter
Convert JSON payloads into TypeScript Zod validation schemas, UUID checkers, email rules, and inferred types
Cloud Storage Pricing Calculator
Compare monthly storage, egress bandwidth, and API request costs across AWS S3, Cloudflare R2, Azure Blob, GCP, and Wasabi
Kubernetes Resource Calculator
Calculate pod CPU, memory requests, limits, cluster overcommit ratios, and node capacity planning with YAML export.
SQL to Prisma Schema Converter
Convert SQL CREATE TABLE DDL statements into Prisma schema models with primary keys, relations, and enums.
.gitignore Generator
Generate production-ready .gitignore files for Node, Python, Next.js, Rust, Go, macOS, and IDEs with custom rule merging.
DNS Record Generator
Generate BIND, Cloudflare, and RFC-compliant zone records for A, AAAA, CNAME, MX, TXT, SPF, and DKIM.
HAR File Viewer
Inspect HTTP Archive (.har) logs, analyze network waterfall timings, and debug HTTP errors with 100% client-side privacy.
SVG to JSX Converter
Transform raw SVG code into production-ready React JSX and TypeScript TSX components with camelCase attributes.
HTML Table Generator
Build responsive HTML tables, modern Tailwind CSS layouts, and GitHub Markdown tables with an interactive WYSIWYG editor.
SemVer Version Calculator
Calculate Semantic Versioning release bumps, evaluate caret (^) and tilde (~) ranges, and audit dependency constraints.
SSL Certificate Decoder
Inspect X.509 PEM certificates, check expiration countdowns, SAN domains, and cryptographic SHA-256 fingerprints with zero server logs.
cURL to Python Converter
Transform cURL command lines into clean, production-ready Python requests, async HTTPX, or Node.js fetch code in seconds.
Crontab Schedule Debugger
Translate 5-field cron expressions into human-readable English, calculate next execution dates, and test crontab syntax effortlessly.
JSON to YAML Converter
Convert JSON to YAML and YAML to JSON in real time. Fast, secure, client-side formatting for Kubernetes, Docker, and CI/CD.
ASCII to Binary Converter
Convert text into 8-bit binary, hexadecimal, decimal ASCII codes, and Base64 with live bit and byte character inspection.
ULID Generator and Decoder
Generate and decode 128-bit sortable Crockford Base32 ULIDs and extract millisecond timestamps.
Webhook Signature Generator & Verifier
Generate and verify HMAC SHA-256 webhook signatures for Stripe, GitHub, Shopify, and custom endpoints.
TCP/UDP Port Number Lookup
Search standard TCP/UDP port numbers (0-65535), default database ports, protocols, and security risks.
Dockerfile Linter & Optimizer
Lint Dockerfiles for root user security, layer cache optimization, and multi-stage image shrinking.
SQL Injection (SQLi) Payload Explainer
Analyze SQL injection attack vectors with parser syntax breakdowns and secure parameterized code fixes.
CORS Header Generator
Generate production-ready Cross-Origin Resource Sharing (CORS) headers for Express, Nginx, Next.js, and Cloudflare.
DNS SPF Record Generator
Build RFC 7208 compliant SPF DNS TXT records with Google, Microsoft, and SendGrid 10-lookup validation.
Git Merge Conflict Resolver
Resolve Git merge conflict markers (<<<<<<< HEAD, =======, >>>>>>>) side-by-side in your browser.
Subnet Mask & Wildcard Calculator
Calculate IPv4 subnets, inverted wildcard masks, CIDR network IDs, usable host ranges, and Cisco IOS statements.
Kubernetes Ingress YAML Generator
Generate production-grade Kubernetes Ingress YAML manifests with cert-manager Let's Encrypt TLS and Nginx annotations.
Redis Memory Sizing Calculator
Calculate Redis RAM requirements by data structure (Strings, Hashes, Sets, ZSets) accounting for jemalloc and cloud nodes.
Terraform Provider Generator
Generate Terraform provider blocks, remote state S3/DynamoDB backends, VPC networks, and security groups in clean HCL.
Finance & Productivity Calculators
162Equity dilution, fee calculators, RSU taxes, SaaS velocity, and business planning models.
Mortgage Calculator
Calculate monthly mortgage payment with PMI, taxes, insurance, HOA, and amortization schedule export.
401(k) Calculator
Project 401(k) retirement balance with employer match, fees, and inflation adjustment. Export to CSV.
Rent vs Buy Calculator
Compare renting vs buying by modeling rent growth, mortgage costs, appreciation, and investment returns. Export to CSV.
House Affordability Calculator
Estimate how much house you can afford from a monthly payment budget including taxes, insurance, HOA, and PMI.
Refinance Calculator
Estimate refinance savings, break-even time, and compare your current mortgage to a new rate and term.
Closing Cost Calculator
Estimate buyer closing costs with an itemized breakdown of fees, prepaids, and escrow deposits. Export to CSV.
Debt Payoff Calculator
Plan a debt payoff strategy using snowball or avalanche. Add multiple debts, set a monthly budget, and export a yearly snapshot.
Credit Card Payoff Calculator
Calculate credit card payoff time and total interest. Pay off by monthly payment or by target months, with CSV export.
Student Loan Calculator
Calculate student loan payment, payoff time, and total interest with extra monthly payments and amortization CSV export.
Profit Margin Calculator
Calculate profit, profit margin, and markup from revenue and cost. Includes target margin scenarios and CSV export.
Freelance Rate Calculator
Estimate a sustainable freelance hourly rate using taxes, overhead, utilization, and profit buffer. Export scenarios to CSV.
Retirement Calculator
Project retirement savings and estimate a target nest egg with inflation, fees, Social Security, and CSV export.
Webcam Tester
Test your webcam, switch devices, mirror previews, and capture diagnostic snapshots before calls or streams.
California Random Address Generator
Generate random California addresses from 15 major cities
Florida Random Address Generator
Generate random Florida addresses from 15 major cities
Daily Habit Tracker
Track your daily habits, build streaks, and monitor progress without signup.
Pomodoro Timer
Boost productivity with 25-minute focus sessions and customizable break intervals.
Time Zone Converter
Convert dates and times across global time zones with daylight saving support.
Compound Interest Calculator
Calculate compound interest, monthly contributions, APY growth, and investment future value
Sales Tax Calculator & Reverse Tax Estimator
Calculate sales tax, state rates, local surtax, and reverse tax amounts from receipts
ROI Calculator (Return on Investment & CAGR)
Calculate total ROI, annualized ROI, net profit, and investment multiples with scenario modeling
Auto Loan Calculator & Car Payment Estimator
Calculate monthly auto loan payments, APR interest, down payments, trade-ins, and amortization
Crypto Profit Calculator & Fee Estimator
Calculate cryptocurrency profits, losses (P&L), exchange trading fees, and break-even exit prices
Salary to Hourly Calculator
Convert annual salary to hourly wage or hourly rate to salary with bi-weekly, overtime, and PTO breakdowns
Break-Even Calculator & Margin Analyzer
Calculate break-even units, revenue threshold, margin of safety, and target profit sales volume
Free Invoice Generator & PDF Maker
Create professional invoices with customizable line items, tax, discounts, client notes, and instant print/PDF
Inflation Calculator & Purchasing Power Tool
Calculate compound inflation, purchasing power loss, and future dollar equivalent over time
Discount & Sale Price Calculator
Calculate markdown prices, stacked double discounts, sales tax additions, and total money saved
Tip & Bill Split Calculator
Calculate tip gratuity, split checks among diners evenly, and round up totals with tipping guide
Loan Comparison Calculator
Compare two loan offers side-by-side with interest rates, loan terms, and total amortized costs
Simple Interest Calculator
Calculate simple interest growth, maturity values, and interest schedules for savings and personal loans
Fuel Cost & Trip Gas Calculator
Calculate road trip fuel expense, cost per passenger, required gallons/liters, and round-trip costs
BMR Calculator & Daily Calorie Needs
Calculate Basal Metabolic Rate and Total Daily Energy Expenditure (TDEE) based on activity level
BMI Calculator & Healthy Weight Range
Calculate Body Mass Index for adults in metric or imperial with WHO weight category breakdown
Daily Water Intake Calculator
Calculate personalized daily hydration targets based on body weight, exercise duration, and climate
Sleep Cycle & Bedtime Calculator
Calculate optimal bedtime and wake-up times aligned with 90-minute natural REM sleep cycles
Date Difference & Day Counter
Calculate exact days, business working days, weeks, and elapsed duration between two calendar dates
Compound Annual Growth Rate (CAGR) Calculator
Calculate annualized investment returns, real inflation-adjusted CAGR, and compounding schedules
Emergency Fund Calculator & Safety Buffer
Calculate 3, 6, 9, or 12-month cash reserves based on essential monthly expenses and career stability
SIP Calculator & Dollar Cost Averaging (DCA)
Calculate mutual fund and ETF compound growth with annual step-up contribution options
Personal Net Worth Calculator
Calculate personal net worth from assets and liabilities with debt-to-asset leverage ratios
Savings Goal Calculator & Deposit Planner
Calculate required monthly, weekly, and daily savings targets with compound HYSA interest
Home Down Payment Calculator
Calculate down payment tiers, closing costs, PMI thresholds, and monthly house savings targets
Loan Amortization Schedule Calculator
Calculate principal & interest amortization schedules with extra payments and CSV spreadsheet export
Markup & Margin Calculator
Convert markup percentage to profit margin, calculate cost of goods, and target selling prices
Work Hours & Weekly Timesheet Calculator
Calculate daily hours, weekly totals, unpaid lunch deductions, and overtime pay
College & High School GPA Calculator
Calculate weighted and unweighted GPA on a 4.0 scale with cumulative transcript projections
Calorie Deficit Calculator & Weight Loss Planner
Calculate daily calorie intake for weight loss, goal completion date, and protein macros
Body Fat Percentage Calculator (US Navy)
Calculate body fat percentage, lean mass, and fitness categories using circumference readings
Macronutrient (Macro) Calculator (IIFYM)
Calculate daily grams and per-meal targets of protein, carbohydrates, and dietary fats
Running Pace & Race Split Calculator
Calculate pace per mile/km, predict finish times, and generate splits for 5K to marathon
Ovulation & Fertile Window Calculator
Predict peak ovulation days, identify 6-day fertile windows, and forecast menstrual cycles
Age in Days Calculator & Life Milestones
Calculate total days, hours, and seconds lived, day of week born, and birthday countdown
Digital Stopwatch & Lap Split Timer
High-precision digital chronometer with millisecond accuracy, fastest/slowest lap tracking, and CSV export
SaaS Metrics Calculator
Calculate LTV:CAC ratio, MRR, ARR, customer churn rate, and CAC payback period with VC-grade diagnostics
Cap Rate Calculator
Calculate Capitalization Rate, Net Operating Income (NOI), Gross Rent Multiplier, and cash-on-cash returns for real estate
Freelance 1099 Self-Employment Tax Calculator
Estimate quarterly estimated taxes, SE tax (Social Security + Medicare), federal income tax brackets, and write-off deductions
Capital Gains Tax Calculator
Calculate short-term vs long-term capital gains tax on stocks, crypto, and real estate with NIIT thresholds
Live Meeting Cost Calculator
Real-time ticker that tracks the financial dollar burn of meetings second-by-second based on attendee hourly rates
Audio BPM Tap Tempo & Metronome
Tap to calculate song tempo in beats per minute (BPM), run a browser metronome, and calculate millisecond delay times
B2B Startup Burn Rate & Runway Calculator
Forecast startup cash runway, net burn, zero-cash calendar dates, and simulate what-if expense reduction scenarios
Carbon Footprint Calculator
Calculate annual greenhouse gas emissions across home energy, driving, flights, and diet with tree offset metrics
Startup Equity Dilution Calculator
Calculate founder ownership dilution across Seed, Series A, Series B, and option pools with pre-money and post-money valuations.
RSU Tax Calculator
Calculate federal, state, and FICA supplemental tax withholding, vesting shares, and net payout on restricted stock units.
Ad Revenue & RPM Calculator
Calculate ad revenue, Page RPM, eCPM, and click-through earnings for Google AdSense, YouTube, and digital media publishers.
Shopify Fee Calculator
Calculate Shopify plan subscriptions, Shopify Payments credit card processing rates, 3rd-party gateway fees, and net profit.
Email Signature Generator
Create professional, responsive HTML email signatures with live preview and one-click copy for Gmail, Outlook, and Apple Mail.
PayPal Fee Calculator
Calculate PayPal merchant seller fees, international cross-border deductions, and reverse invoice amounts.
eBay Fee & Profit Calculator
Calculate exact eBay Final Value Fees, store discounts, promoted listing costs, fulfillment expenses, and net profit margins.
Stripe Fee Calculator
Calculate Stripe payment processing fees, international surcharges, recurring billing add-ons, and reverse invoice sums.
Solar Panel Payback Calculator
Calculate residential solar break-even timeline, 30% Federal Clean Energy Tax Credit, and 25-year net ROI.
HSA Investment Calculator
Calculate compound growth in an invested Health Savings Account, annual tax savings, and retirement healthcare funds.
EV Charging Cost Calculator
Compare Level 2 home charging, DC fast charging, and gasoline costs per mile with annual fuel savings.
B2B Sales Pipeline Velocity Calculator
Calculate daily revenue velocity, annualized ARR run-rate, and sensitivity impacts across win rate, deal size, and sales cycle.
Churn Reduction ROI Calculator
Calculate the financial impact of customer retention, LTV expansion, and SaaS enterprise valuation lift from reducing churn.
HELOC Payment Calculator
Calculate monthly interest-only draw payments and principal amortization repayment for Home Equity Lines of Credit.
DSCR Loan Calculator
Calculate Debt Service Coverage Ratio (DSCR), maximum qualifying loan amount, and net operating income for real estate investors.
1031 Exchange Calculator
Calculate capital gains tax deferral, boot liabilities, and replacement property equity targets under Section 1031 exchanges.
Commercial Lease Calculator
Calculate Triple Net (NNN), Gross, and Modified Gross lease expenses, tenant CAM charges, and annual rent escalations.
Mortgage Discount Points Calculator
Evaluate mortgage discount points vs zero-point loans with exact break-even month timelines and interest savings.
LLC vs S-Corp Tax Calculator
Compare self-employment tax liabilities and potential tax savings between single-member LLCs and S-Corporation elections.
SAFE & Convertible Note Calculator
Model post-money valuation caps, discount rates, and startup equity dilution for Y Combinator SAFEs and convertible debt.
Billable Hourly Rate Calculator
Calculate required freelancer and agency hourly billing rates based on income goals, business overhead, taxes, and billable utilization.
Privacy Policy Generator
Generate customized, compliant Privacy Policy agreements for websites, SaaS, mobile apps, GDPR, CCPA, and CalOPPA.
Terms of Service Generator
Create customized Terms of Service & Terms of Use contracts with IP clauses, limitation of liability, and jurisdiction terms.
Amazon FBA Profit Calculator
Calculate Amazon FBA fulfillment fees, referral fees, storage costs, net profit margins, and ROI per product unit.
Etsy Fee & Profit Calculator
Calculate Etsy listing fees, transaction fees, payment processing, Offsite Ads costs, and net seller profit margins.
ROAS & Break-Even ROAS Calculator
Calculate Return on Ad Spend (ROAS), break-even target ROAS, CPA, and profit margins across Google, Meta, and TikTok ad campaigns.
Receipt Maker
Design, customize, and print realistic thermal paper receipts with automated tax calculations, itemized lists, and barcodes.
NDA Generator
Generate legally binding mutual and unilateral Non-Disclosure Agreements with custom jurisdiction rules.
Independent Contractor Agreement Generator
Create legally sound 1099 freelance agreements with work-made-for-hire IP assignment and milestones.
Bill of Sale Generator
Generate an 'As-Is' Bill of Sale for vehicles or property with federal odometer disclosure statements.
Cease and Desist Letter Generator
Create formal legal cease and desist warning letters for copyright, trademark, and defamation violations.
Promissory Note Calculator & Generator
Calculate loan debt service schedules and generate binding Promissory Notes with default penalties.
LLC Operating Agreement Generator
Create single-member or multi-member LLC Operating Agreements with capital accounting and voting rules.
Umbrella Insurance Calculator
Calculate recommended personal umbrella liability insurance limits ($1M-$10M+) to shield your assets.
Annuity Payout Calculator
Calculate guaranteed lifetime monthly income payouts, internal rate of return, and period certain options.
Life Insurance Needs Calculator
Calculate your family's exact life insurance coverage needs using the institutional DIME method.
Inherited IRA RMD Calculator
Calculate SECURE 2.0 10-year payout schedules and annual RMDs for inherited Traditional and Roth IRAs.
Backdoor Roth IRA Calculator
Calculate conversion taxes and verify IRS Form 8606 Pro-Rata Rule compliance across all IRAs.
Dividend Reinvestment (DRIP) Calculator
Simulate multi-decade dividend compounding, share accumulation, and yield-on-cost returns.
Closing Costs Calculator
Calculate real estate buyer and seller settlement fees, lender points, escrow reserves, and transfer taxes.
FHA vs Conventional Loan Calculator
Compare FHA MIP vs. Conventional PMI, 1.75% upfront funding fees, and 10-year total borrowing costs.
CD Ladder Calculator
Build an optimal Certificate of Deposit ladder to maximize APY yields while preserving rolling liquidity.
Car Depreciation Calculator
Calculate 5-year vehicle residual value curves, annual depreciation loss, and true cost per mile.
Startup Runway & Cash Burn Calculator
Calculate startup cash runway in months, gross vs. net monthly burn rate, and projected zero-cash dates.
SaaS CAC Payback Period Calculator
Calculate B2B SaaS Customer Acquisition Cost payback in months, SaaS Magic Number, and LTV:CAC ratios.
Payment Gateway Fee Comparison Calculator
Compare merchant credit card fees side-by-side across Stripe, PayPal, Square, and Interchange-Plus.
Employee Turnover Cost Calculator
Calculate the true financial cost of employee attrition, recruiter fees, and ramp productivity lag.
Inventory Turnover & DSI Calculator
Calculate inventory turnover ratios, Days Sales of Inventory (DSI), and annual carrying cost holding fees.
Employee PTO Accrual Calculator
Calculate paid time off accruals per pay period and company balance sheet vacation liabilities.
Business Valuation Calculator
Estimate small business and mid-market valuations using SDE multiples, EBITDA, and add-back normalization.
Email Subject Line Tester & Spam Checker
Test email subject lines for open-rate optimization, mobile cutoff lengths, and spam trigger filters.
Influencer Sponsored Rate Calculator
Calculate fair-market sponsorship rates for Instagram Reels, TikTok, and YouTube based on engagement.
Solo 401(k) Contribution Calculator
Calculate maximum tax-advantaged Solo 401(k) contributions for self-employed individuals and LLC owners.
Wash-Sale Rule Calculator
Calculate IRS 30-day wash-sale disallowed tax losses, replacement share basis adjustments, and tax liability.
Mortgage Recast Calculator
Calculate new lowered monthly mortgage payments after making a lump-sum principal recast payment.
Federal Estate Tax Calculator
Estimate federal estate tax liability and evaluate lifetime gift tax exemption utilization.
HSA Contribution Limit Calculator
Calculate annual Health Savings Account (HSA) contribution limits with 55+ catch-up and tax savings.
BRRRR Method Calculator
Model Buy, Rehab, Rent, Refinance, Repeat deals, cash-out proceeds, and infinite return thresholds.
Landlord Rent Increase Calculator
Calculate rent increases adhering to state CPI caps, tenant turnover costs, and annual revenue.
Property Management Fee Calculator
Compare landlord property management expenses: leasing fees, monthly management %, and maintenance markups.
Construction Loan Calculator
Model draw schedules, interest-only holding costs, and permanent takeout financing for builders.
Commercial Real Estate ROI Calculator
Evaluate cap rate, Net Operating Income (NOI), Debt Service Coverage Ratio (DSCR), and cash-on-cash ROI.
Workers' Comp Cost Calculator
Estimate annual workers' compensation insurance premiums based on industry risk class codes, payroll, and EMR.
Cyber Insurance Cost Calculator
Estimate commercial cyber liability insurance premiums and potential data breach blast radius exposure.
Freelance Retainer Calculator
Calculate monthly consulting retainers, capacity commitment discounts, rollover limits, and surge overage rates.
Customer Churn Rate Calculator
Calculate SaaS logo churn, gross MRR churn, Net Revenue Retention (NRR), and customer lifetime value (LTV).
Freight Shipping Class Calculator
Calculate pallet density in pounds per cubic foot (PCF) and determine standard NMFC Less-Than-Truckload classes.
Employment Offer Letter Generator
Generate formal job offer letters with salary, bonus, equity options, FLSA exempt status, and at-will terms.
Roommate Agreement Generator
Create comprehensive roommate agreements: rent splits, utility sharing, quiet hours, and deposit rules.
Lease Renewal Agreement Generator
Draft official lease renewal extensions with updated rent, term dates, and original lease ratification.
Power of Attorney Generator
Generate a General Durable Power of Attorney document with financial powers and notary public jurats.
Affidavit Generator
Draft formal sworn affidavits of facts under penalty of perjury with jurisdiction venue and notary blocks.
Press Release Generator
Generate official AP-style media press releases with datelines, executive quotes, and company boilerplates.
Podcast Sponsorship Calculator
Calculate podcast sponsorship rates, Pre/Mid/Post-Roll CPM revenue, and monthly advertising earnings.
Affiliate Marketing Commission Calculator
Estimate affiliate marketing earnings, link CTR, merchant conversion rates, and Page RPM revenue.
Sales Commission Calculator
Calculate sales commission payouts, quota attainment, and tiered accelerator bonuses over On-Target Earnings.
QSBS Tax Exemption Calculator
Calculate Section 1202 Qualified Small Business Stock (QSBS) federal capital gains tax exclusions and state conformity.
Cost Segregation Calculator
Estimate commercial and residential real estate cost segregation bonus depreciation write-offs and tax savings.
Donor-Advised Fund Tax Calculator
Model tax deductions, capital gains tax avoidance, and charity growth from contributing appreciated assets to a DAF.
Opportunity Zone Tax Calculator
Calculate Qualified Opportunity Zone (QOZ) capital gains tax deferral, tax-free basis step-ups, and 10-year net IRR returns.
RSU Sell-to-Cover Calculator
Compare RSU sell-to-cover withholding vs same-day-sale. Model tax shortfalls, supplemental withholding, and retained shares.
Hard Money Loan Calculator
Calculate hard money interest, origination points, loan-to-cost (LTC), and holding costs for fix-and-flip real estate deals.
Seller Financing Calculator
Calculate owner financing installment notes, monthly P&I income, amortization schedules, and balloon payment balances.
Commercial Bridge Loan Calculator
Calculate commercial real estate bridge financing, floating SOFR coupon spreads, interest-only debt service, and sponsor equity.
Air Rights Valuation Calculator
Calculate urban air rights and Transferable Development Rights (TDR) valuation using Floor Area Ratio (FAR) and zoning capacity.
Mezzanine Debt Calculator
Calculate real estate mezzanine debt financing, PIK interest compounding, warrants, and blended capital stack WACC.
Business Interruption Insurance Calculator
Calculate business interruption insurance loss values, insurable gross earnings, continuing fixed expenses, and restoration limits.
Commercial Auto Insurance Calculator
Calculate commercial auto and fleet insurance premiums. Model vehicle types, driving record risk tiers, and liability limits.
D&O Insurance Cost Calculator
Calculate Directors and Officers (D&O) liability insurance premiums for venture-backed startups, private companies, and boards.
Key Person Insurance Calculator
Calculate key person life and disability insurance requirements. Size replacement costs, lost revenue, and loan covenants.
Equipment Lease vs Buy Calculator
Compare commercial equipment leasing versus purchasing. Calculate Net Present Value (NPV), Section 179 tax deductions, and cash flows.
Mutual Termination Agreement Generator
Generate mutual contract and lease termination agreements with general liability release clauses and settlement terms.
Sublease Agreement Generator
Generate customized residential and commercial sublease agreements with master lease rules, deposits, and landlord consent.
Commercial Lease Guaranty Generator
Generate commercial lease personal guaranties with Good Guy clauses, monetary liability caps, and notary jurat blocks.
Independent Sales Rep Agreement Generator
Generate 1099 independent sales representative agreements with commission rates, territories, exclusivity, and clawbacks.
Certificate of Trust Generator
Generate a statutory Certificate of Trust verifying trustee powers, titling styles, and taxpayer IDs without disclosing beneficiaries.
Facebook Ad Budget Calculator
Calculate Facebook and Meta ad spend requirements based on target revenue, AOV, CPM, CTR, and landing page conversion rates.
Webinar Lead ROI Calculator
Calculate B2B webinar pipeline generation, attendance rates, sales qualified leads (SQLs), closed-won revenue, and net ROI.
CRO ROI Calculator
Calculate incremental revenue lift, order growth, and net ROI from Conversion Rate Optimization (CRO) and A/B testing.
Sales Pipeline Coverage Calculator
Calculate B2B sales pipeline coverage ratios against team quotas, historical win rates, and revenue gap analysis.
Text & Writing Tools
53Word counters, text formatters, case converters, typography, and cleanup utilities.
Numbers to Words Converter
Convert numeric amounts into cheque-ready words with locale and currency support for finance, legal, and education teams.
String Length Calculator
Count characters, words, lines, sentences, and UTF byte size for any string or pasted text.
Text Summarizer
Summarize articles, long paragraphs, and research notes into concise key sentences.
Word Combiner
Mix word lists into brand names, keyword combinations, naming ideas, and domain-style phrases.
Punctuation Checker
Review punctuation mistakes, repeated punctuation, sentence endings, and spacing issues in drafts.
Sentence Checker
Check sentence clarity, readability, repeated words, and sentence-level writing quality.
Essay Checker
Review essays for readability, punctuation, repeated words, and revision opportunities before submission.
Paper Checker
Check papers, reports, and academic drafts for readability and common writing issues.
Citation Generator
Generate APA, MLA, and Chicago citations with matching in-text references for online sources.
Online Notepad
Write, autosave, copy, and download notes in a simple browser-based writing pad.
Invisible Character Generator
Copy blank text, zero-width spaces, and hidden Unicode characters for formatting and testing.
Word Shuffler
Randomly shuffle words in text with multiple modes and real-time preview
Cursive Text Generator
Convert text to beautiful cursive handwriting using Google's Dancing Script font. Download as image.
LinkedIn Text Formatter
Format LinkedIn posts with bold, italic, bullets, and hashtags
Word Counter
Count words, characters, and paragraphs in your text.
Text Diff Checker
Compare two texts and find differences side by side.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text for your designs.
Text Case Converter
Convert text between different cases instantly.
Mirrored Text Generator
Transform your text with mirrored and reversed effects.
Remove Accents (Diacritics) from Text
Clean text by removing accents/diacritics from characters instantly.
Word to Number Converter
Convert English number words (e.g., 'one thousand') into digits.
Remove Duplicate Lines
Delete duplicate lines from text. Keep unique lines only.
Text to ASCII Art Generator
Convert your text into stunning ASCII art with multiple font styles instantly.
Morse Code Translator
Translate text to Morse code and decode Morse back to text with audio playback.
Text Repeater
Repeat any text a specified number of times instantly.
Text To Emoji Translator
Convert plain text into a string of relevant emojis instantly.
Remove Extra Spaces
Remove multiple spaces, tabs, and line breaks from your text instantly
Email Extractor
Extract email addresses from text, documents, and web content with advanced filtering.
Reverse Text Generator
Reverse text by characters, words, or lines. Copy or download instantly.
Bold Text Generator
Convert plain text into bold Unicode letters for social captions and bios.
Subscript Text Generator
Convert letters and numbers into Unicode subscripts for formulas and notes.
Superscript Text Generator
Transform characters into Unicode superscripts for exponents and references.
Title Case Converter
Format sentences into AP-style title case headlines instantly.
Typewriter Text Generator
Swap text into nostalgic monospace typewriter-style characters.
Underline Text Generator
Add Unicode underline combining marks to highlight important text.
Whitespace Remover
Clean text by trimming lines, removing blank rows, and collapsing spaces.
Wide Text Generator
Stretch text with fullwidth Unicode characters for bold visual impact.
Wingdings Converter
Translate text into Wingdings-style Unicode symbols for playful messages.
X & Twitter Font Generator
Style tweets and bios with bold, italic, script, sans, or circled Unicode fonts.
Zalgo Glitch Text Generator
Glitch text with customizable Zalgo combining mark intensity and direction.
Strikethrough Text Generator
Strike out text using Unicode overlays for posts, notes, and emphasis.
Upside Down Text Generator
Flip your text upside down using Unicode lookalikes.
Camel, Snake & Kebab Case Converter
Convert text into camelCase, snake_case, kebab-case, and PascalCase
Readability Score Checker
Calculate Flesch-Kincaid Reading Ease score and Grade Level for articles
HTML to Markdown Converter
Convert raw HTML markup and web articles into clean Markdown text
Text Diff Checker & Comparison Tool
Compare two text documents or code snippets line-by-line with color-coded diff highlights
Reading Time & Speech Duration Calculator
Calculate silent reading time and spoken speech duration from text word counts
Markdown Previewer & Live Editor
Write, edit, and preview Markdown with real-time HTML rendering, formatting shortcuts, and .md download
Text to Speech Reader & Synthesizer
Convert written text into natural spoken audio with voice selection, speed controls, and zero character limits
Social Media Character Counter
Monitor character limits, word counts, hashtag density, and above-the-fold truncation cutoffs across all major platforms
NATO Phonetic Alphabet Translator
Translate any word, code, or password into the official NATO phonetic alphabet with audio speech pronunciation and Morse code.
Title Capitalization Tool
Capitalize headlines and article titles following Chicago, AP, APA, and MLA editorial rules automatically.
Text Anonymizer & PII Redactor
Scrub sensitive emails, phone numbers, credit cards, and SSNs from text instantly with 100% browser-based privacy.
Design & CSS Generators
29CSS shadow generators, border triangles, color blindness simulators, and display PPI tools.
Box Shadow Generator
Create multi-layer CSS box-shadows with presets, inset support, opacity control, and live preview.
Color Contrast Checker
Check color contrast ratios for WCAG 2.1 compliance.
RGBA to HEX Color Converter
Convert RGBA colors to HEX format instantly.
CMYK to Pantone Converter
Find closest Pantone matches from CMYK with ranked color suggestions and swatch preview.
REM to PX Converter
Convert rem to px and px to rem with a custom root font size and scale table.
Color Palette Generator
Generate beautiful color palettes for your designs.
HEX to RGB & RGBA Converter
Convert HEX color codes into CSS RGB and RGBA values with color picker
SVG Placeholder Image Generator
Generate custom SVG placeholder images with dimensions and color controls
CSS Glassmorphism UI Generator
Design modern frosted glass UI elements with backdrop-filter blur and transparency controls
CSS Gradient Generator & Color Palette Maker
Create linear, radial, and conic CSS gradients with multi-stop color controls and Tailwind export
Aspect Ratio Calculator & Dimension Resizer
Calculate proportional aspect ratios, CSS padding-top hacks, and display resolutions for design & video
SVG to PNG Converter Online
Convert vector SVG code or files into high-resolution PNG or JPEG images with transparency
CSS Clip-Path Generator & Polygon Maker
Create custom geometric shapes, diagonal sections, and polygon masks with draggable visual control points
CSS Neumorphism & Soft UI Generator
Design tactile Soft UI cards, buttons, and elements with dual directional highlights and box-shadows
CSS Border-Radius & Fancy Blob Generator
Generate fluid organic shapes and keyframe morphing animations with the 8-value border-radius syntax
CSS Animation & Keyframe Generator
Build hardware-accelerated CSS keyframe animations with easing curves, duration controls, and live element preview
Image Color Extractor & Palette Generator
Extract dominant color palettes and inspect individual pixel hex codes from any image with an eyedropper
Favicon & Apple Touch Icon Generator
Create browser tab favicons and mobile app icons from emojis or initials with multi-size PNG bundle downloads
CSS Mesh Gradient Generator
Create fluid, multi-point aurora mesh gradients with interactive node coordinates, live CSS export, and HD wallpaper downloads
Video Safe Zones & Aspect Ratio Overlay
Preview 9:16 vertical videos against TikTok, Instagram Reels, and YouTube Shorts UI overlays to protect captions and CTAs
Color Blindness Simulator
Simulate Protanopia, Deuteranopia, Tritanopia, and Achromatopsia color vision deficiencies for web accessibility.
CSS Triangle Generator
Generate pure CSS border triangles, tooltip arrows, and dropdown carets with live preview and Tailwind CSS export.
CSS Text Shadow Generator
Design multi-layer CSS text shadows, neon glow, and 3D typography effects with real-time visual preview.
Screen DPI / PPI Calculator
Calculate display pixel density (PPI/DPI), dot pitch, aspect ratio, and Apple Retina viewing distances.
CSS Flexbox Generator
Interactive visual flexbox playground to tweak flex direction, wrap, justify-content, align-items, and export clean CSS.
CSS Grid Generator
Visual 2D CSS grid layout builder to configure rows, columns, gaps, and fr units with instant copyable CSS and HTML.
CSS Cubic-Bezier Curve Generator
Interactive cubic-bezier timing curve visualizer with physics animation previews and CSS transition code export.
SVG Wave Generator
Create smooth, organic multi-layered SVG waves and gradient section dividers for websites with instant SVG and CSS export.
WCAG Color Contrast Checker
Test foreground and background color pairs against WCAG 2.1 AA and AAA standards with visual text simulations and contrast ratios.
Security & Cryptography
14SSH key generators, Base58/Base32 codecs, password analyzers, and cryptographic hashing tools.
Random Password Generator
Generate strong, random passwords instantly.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from your text.
Password Strength Checker
Check your password security and get improvement suggestions instantly.
Security Headers Generator & CSP Builder
Generate hardened HTTP security headers (CSP, HSTS, X-Frame-Options) for Nginx, Apache, and Next.js
Cryptographic Hash Identifier & Analyzer
Identify MD5, SHA-1, SHA-256, bcrypt, Argon2, and checksum algorithms with NIST security ratings
Password Entropy Calculator
Calculate Shannon entropy bits, character pool sizes, and realistic GPU brute force cracking times according to NIST standards
CSP Header Generator
Build hardened Content Security Policy headers for Nginx, Next.js, and Apache with instant security audit scoring
CSR & OpenSSL Command Generator
Generate Certificate Signing Requests (CSR) and zero-trust OpenSSL CLI commands with Subject Alternative Names (SANs)
SSH Key Generator
Generate secure Ed25519 and RSA 4096 SSH key pairs in-browser with automated OpenSSH terminal commands.
Base58 Encoder & Decoder
Encode and decode Bitcoin, Solana, and IPFS Base58 strings to text or hex with instant client-side validation.
Base32 Encoder & Decoder
Encode and decode RFC 4648 Base32 strings and 2FA TOTP secret keys to plain text or hex with instant conversion.
JWT Token Generator
Generate, inspect, and sign JSON Web Tokens (JWT) with custom claims and browser-side HMAC-SHA256.
SSL Pinning Hash Generator
Calculate Subject Public Key Info (SPKI) SHA-256 pins for Android network_security_config and iOS TrustKit.
Argon2 Hash Generator & Tuning Tool
Generate and configure RFC 9106 Argon2id password hashes with memory, iteration, parallelism, and OWASP compliance auditing.
SEO & Webmaster Tools
14XML sitemap creators, robots.txt, meta tags, SERP simulators, and DNS zone record generators.
Keyword Density Checker Free
Analyze keyword density in text for SEO optimization for free.
Slug Generator
Convert text into clean, SEO-friendly URL slugs instantly.
UTM Builder
Build trackable campaign URLs with UTM parameters.
Meta Tag Generator
Create SEO meta tags: title, description, keywords, author, robots.
Robots.txt Generator
Generate custom robots.txt files with crawl rules and sitemaps
Open Graph Meta Tag Generator
Generate Facebook Open Graph & Twitter Card meta tags with live card preview
Schema.org JSON-LD Generator
Generate Google-rich snippet Schema.org JSON-LD structured data code
Google SERP Simulator & Snippet Previewer
Preview how your page appears on Google desktop and mobile search results with pixel width checks
Social Share & Open Graph Previewer
Simulate social links on Twitter, Facebook, LinkedIn, Discord, and Google SERPs with copyable meta tags
Sitemap XML Generator
Generate schema-compliant XML sitemaps with custom priorities, change frequencies, and bulk URL importing.
Hreflang Tag Generator
Generate valid HTML hreflang link tags and XML sitemap hreflang blocks for multi-language and international SEO websites.
Canonical Tag Generator
Create valid canonical URL link tags to prevent duplicate content penalties, consolidate PageRank, and specify preferred search index URLs.
Google Ad Copy Generator
Generate high-CTR Responsive Search Ads (RSA) headlines (max 30 chars) and descriptions (max 90 chars).
SEO ROI Forecasting Calculator
Calculate SEO ROI, organic traffic forecasts, and equivalent Google Ads PPC media value based on search volume and SERP CTR curves.
Numbers & Math Calculators
12Random number generators, percentages, mortgage estimators, and math helpers.
Random Binary Generator
Create binary strings with grouping, 0b prefixes, and base conversions for QA datasets and embedded experiments.
Random Zip Code Generator
Generate random US ZIP codes from all 50 states
Random Phone Number Generator
Generate random US phone numbers with area codes instantly.
Random 3 Digit Number Generator
Generate random 3-digit numbers for codes, PINs, and more.
Random 4 Digit Number Generator
Generate random 4-digit numbers for codes, PINs, and more.
Random 5 Digit Number Generator
Generate random 5-digit numbers for codes, PINs, and more.
Random 6 Digit Number Generator
Generate random 6-digit numbers for codes, PINs, and more.
Palindromic Number Checker
Check if a number is a palindrome or generate palindrome numbers in a range.
Age Calculator
Calculate exact age from date of birth in years, months, days, and more.
Percentage Calculator & Change Estimator
Calculate percentage increases, decrease, ratios, and relative changes instantly
Universal Unit Converter
Convert length, mass, temperature, speed, volume, and digital storage units accurately
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and Roman numerals to numbers with step-by-step breakdown explanations
Files & Data Formatters
5TSV to JSON, CSV converters, file size analyzers, and code minifiers.
File Size Converter
Convert file sizes between different units (B, KB, MB, GB, TB).
Convert PDF to XML Format
Convert PDF files to XML format easily.
JSON to CSV Converter
Convert JSON to CSV from text or from file
CSV To HTML Table Generator
Convert CSV data into a styled HTML table instantly
TSV to JSON Converter
Convert Tab-Separated Values (TSV) from Excel or datasets into structured JSON arrays and keyed objects.
Image & Media Tools
5Image resizers, duplicators, Base64 image codecs, and video safe zones.
All-In-One Image Processor
Compress, resize, and convert images in one workflow
Image Resizer
Resize your images to any dimension while maintaining quality.
Image to Base64 Converter
Convert images to Base64 strings instantly.
Text to Image Converter
Turn quotes, notes, and plain text into downloadable PNG images with simple styling controls.
Base64 to Image Converter
Decode Base64 strings and Data URIs back into PNG, JPG, or SVG images with live preview and download
Fun & Games
7Random decision spinners, excuse generators, coin tosses, and interactive word games.
Pictionary Word Generator
Generate random words for Pictionary games with timer and scoring
Random Excuse Generator
Generate funny random excuses for work, school, or fun.
Random Name Picker
Pick random names for giveaways, classrooms, or groups. Easy picker wheel and instant winner!
Random Team Generator
Split a list of names into balanced random teams in one click.
Fake Social Media Post Generator
Generate realistic fake social media posts for Twitter, Instagram, Facebook & LinkedIn. Perfect for mockups and presentations.
Decision Wheel Spinner & Picker
Spin the wheel of fortune to make random choices with physics deceleration, sound ticks, and victory confetti
Random Choice Picker
Resolve debates and make fair choices fast with an animated random decision maker, name shuffler, and celebration confetti.