Random 6 Digit Number Generator
Generate random 6-digit numbers instantly with powerful filters, duplicate control, and export-ready outputs tailored for security and testing.
Our 6 Digit Random Number Generator delivers fast, secure batches of six-digit codes for authentication flows, banking PINs, contests, and prototyping. Configure zero padding, enforce uniqueness, and filter results so every number you produce is ready for production use cases.
Popular Ways to Use 6-Digit Numbers
- ✓Two-Factor Authentication
Generate secure 6-digit OTPs for SMS, email, or authenticator apps with configurable uniqueness and padding.
- ✓Banking & Access PINs
Create strong 6-digit PIN codes for ATMs, vaults, or restricted access systems with duplicate prevention.
- ✓Gaming & Rewards
Produce randomized loot codes, contest entries, or reward tokens that always stay six digits long.
- ✓QA & Load Testing
Generate large batches of 6-digit numbers to stress test validation rules and input handling.
- ✓IoT Device Provisioning
Issue unique pairing codes for smart devices, routers, and sensors during onboarding flows.
- ✓Lottery & Contests
Create fair ticket numbers for raffles, giveaways, and national lottery-style campaigns.
Why Choose This Generator
High-Volume Generation
Produce up to 100 random 6-digit numbers instantly with every click.
Zero Padding Control
Decide whether to include leading zeros for formats like 004287 or enforce 100000-999999 values.
Unique Number Guarantee
Toggle duplicate prevention to ensure every generated value is unique within the batch.
Advanced Filtering
Filter by digit sum, divisibility, exclusion lists, or exact numbers to match strict requirements.
Export & Copy Options
Download results as CSV, JSON, TXT, or copy them to your clipboard with a single click.
Secure & Private
Runs entirely in your browser using secure randomness—no data ever leaves the page.
How to Use the 6-Digit Random Number Generator
- Set the quantity: Choose how many 6-digit numbers you need (1-100).
- Adjust options: Enable zero padding, prevent duplicates, or add prefixes/suffixes.
- Apply filters (optional): Narrow results by digit sum, divisibility, or specific numbers.
- Generate: Click “Generate” to instantly produce your batch of 6-digit codes.
- Copy or export: Use one-click copy or download as CSV, JSON, or TXT.
Understanding 6-Digit Numbers
Six-digit numbers span 000000 to 999999, creating one million possible combinations. This expanded range enhances security and provides plenty of unique identifiers for:
- Verification codes: Robust enough for high-security login workflows
- Banking PINs: Frequently used by financial institutions for added protection
- Contests & raffles: Plenty of ticket combinations to avoid collisions
- Device onboarding: Unique pairing codes for smart hardware ecosystems
Enabling zero padding keeps every result at exactly six digits, which is crucial for systems that expect fixed-length inputs.
Advanced Features & Filters
Digit Sum Filter
Restrict results to numbers whose digits add up to a specific total—ideal for checksum testing and puzzle design.
Divisibility Filter
Keep only numbers divisible by a target value to match accounting rules or game mechanics.
Exact Match Filter
Regenerate specific values on demand by listing exact numbers that must appear in the output.
Frequently Asked Questions
What range do 6-digit numbers cover?
6-digit numbers span from 000000 to 999999, providing one million possible combinations for strong security and uniqueness.
Can the generator output numbers with leading zeros?
Yes. Enable "Allow Zero Padding" to include numbers like 042923. Disable it to limit results to 100000-999999.
Are the numbers cryptographically secure?
We leverage JavaScript's crypto-quality randomness where available, suitable for OTPs, verification codes, and secure workflows.
How many numbers can I generate at once?
You can create up to 100 numbers per batch to balance performance with bulk needs. Rerun generation to gather more.
Can I prevent duplicates?
Absolutely. Toggle the "Prevent Duplicates" option to guarantee every number in the batch is unique.
Which formats can I export?
Export directly to CSV, JSON, or TXT so you can integrate the numbers into spreadsheets, scripts, or documentation.
Security Considerations
Six-digit numbers offer stronger security than shorter codes, but best practices still apply:
- Entropy: 1,000,000 combinations reduce guessability and brute-force success.
- Usage: Perfect for temporary access, verification, and limited-use credentials.
- Policies: Pair with rate limiting, expiration timers, and account lockouts.
- Higher assurance: For critical systems, combine with multi-factor authentication and activity monitoring.
Integration Example
JavaScript Snippet:
// Generate random 6-digit number
function generate6DigitNumber(zeroPad = false) {
const min = zeroPad ? 0 : 100000;
const max = 999999;
const range = max - min + 1;
const random = Math.floor(Math.random() * range) + min;
return zeroPad ? String(random).padStart(6, '0') : String(random);
}
console.log(generate6DigitNumber(true)); // "042923"
console.log(generate6DigitNumber(false)); // "685247"