Security, Hash & Cryptography Tools
Protect credentials, inspect security certificates, and generate cryptographic digests. Calculate password entropy, test strength thresholds, decode SSL chains, and redact personally identifiable information (PII) entirely within your local browser sandbox.
JWT Token Decoder
Decode and inspect JWT tokens
Hash Generator
Generate MD5, SHA-1, SHA-256 hashes
WordPress Hash Generator
Create and verify WordPress-compatible phpass password hashes in the browser
Keyword Density Checker
Analyze keyword density in content
Long Tail Keyword Generator
Generate long-tail keyword ideas
Question Keyword Generator
Generate question-based keywords
Local Keyword Modifier
Add local modifiers to keywords
Autocomplete Keyword Suggester
Get autocomplete keyword suggestions
Password Strength Checker
Check password strength and security
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 security ratings
Password Entropy Calculator
Calculate Shannon entropy bits, character pool sizes, and realistic GPU brute force cracking times according to NIST standards
SSH Key Generator
Generate secure Ed25519 and RSA 4096 SSH key pairs in-browser with automated OpenSSH terminal commands
SSL Certificate Decoder
Inspect X.509 PEM certificates, check expiration countdowns, SAN domains, and cryptographic SHA-256 fingerprints with zero server logs.
Text Anonymizer & PII Redactor
Scrub sensitive emails, phone numbers, credit cards, and SSNs from text instantly with 100% browser-based privacy.
ULID Generator and Decoder
Generate and decode 128-bit sortable Crockford Base32 ULIDs and extract millisecond timestamps.
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.
Key Person Insurance Calculator
Calculate key person life and disability insurance requirements. Size replacement costs, lost revenue, and loan covenants.
Argon2 Hash Generator & Tuning Tool
Generate and configure RFC 9106 Argon2id password hashes with memory, iteration, parallelism, and OWASP compliance auditing.
Why Use Stilest Security & Hash?
Every tool in our Security & Hash collection is built specifically for creators, developers, and everyday users who demand fast, reliable utilities without bloated software installs, account creation gates, or hidden paywalls. By performing operations client-side in modern WebAssembly and native JavaScript engines, your data remains securely on your device without transmitting sensitive text, tokens, or code to third-party cloud servers.
No Sign-up Required
Jump straight to solving your problem. All tools are immediately interactive on page load without email verification or registration.
Mobile & Desktop Optimized
Clean responsive layouts engineered for fast performance and high usability on tablets, smartphones, and high-resolution monitors.