Random 6-Digit PIN & OTP Code Generator
Generate a random 6-digit PIN code instantly — OTP-style numeric codes for testing and mock verification flows, with an adjustable 3-8 digit length. Free, client-side, cryptographically random PIN generator.
🔒 100% Client-Side Processing
Your data is processed entirely in your browser and never transmitted to any server.
6 digits
Common Use Cases
Mock OTP screens
Fill one-time-passcode UIs with realistic 6-digit values during development and demos.
Stronger device PINs
Generate a random 6-digit code for phones and safes that support longer PINs.
Frequently Asked Questions
- How much stronger is 6 digits than 4?
- One hundred times — 1,000,000 combinations versus 10,000. That is why authenticator apps and SMS verification standardised on 6-digit codes for one-time passwords.
- Is this the same as a TOTP authenticator code?
- Only in format. Real TOTP codes are derived cryptographically from a shared secret and the current time; this generates random 6-digit values using crypto.getRandomValues() — ideal for mocking verification flows in tests, not for actually validating a login.
- Can I generate a PIN with a different number of digits?
- Yes — use the length slider to pick anywhere from 3 to 8 digits, and the code updates instantly. For a fixed 4-digit code by default, see the 4-Digit PIN Generator.
- Is my data private when I use this tool?
- Yes. This tool runs entirely in your browser using client-side JavaScript — nothing you type is transmitted to, logged by, or stored on any server. You can safely process confidential text, tokens, or code.