6 Digit Random Number Generator

Instantly generate a random 6-digit number (100000-999999). This is the standard format for OTP (One-Time Password) codes used in two-factor authentication. With 900,000 possible values, each code is highly unlikely to repeat.

—
—

History

Common Uses

  • ✓ OTP verification code testing
  • ✓ Two-factor authentication simulation
  • ✓ Banking verification codes
  • ✓ Security token generation
  • ✓ Test data for 6-digit fields

Frequently Asked Questions

Can I use this for OTP/2FA codes?
This generates random 6-digit numbers in the same format as OTP codes. Our generator uses the same cryptographic randomness (crypto.getRandomValues) that real OTP systems use. However, for production 2FA, use a proper TOTP library.
How secure is a random 6-digit code?
With 900,000 possible combinations, a random 6-digit code has approximately a 1-in-900,000 chance of being guessed on any single attempt. Combined with attempt limits and time expiration, this provides strong security for verification purposes.

You Might Also Need

Random Number 1 to 10Pick a Number Between 1 and 10Choose a Number Between 1 and 10Number Generator 1 to 10Random Number 1 to 100Pick a Number Between 1 and 100Choose a Number Between 1 and 100Number Generator 1 to 100
← Need a different range? Go to Home