Random 6-Digit PIN & OTP Code Generator
Generate a random 6-digit PIN code instantly — OTP-style, with an adjustable 3-8 digit length. Free, client-side, cryptographically random 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 — drag the length slider anywhere between 3 and 8 and the output refreshes immediately. Six is the default because authenticator apps and SMS verification codes almost always arrive at that width. Older keypad hardware, cash machines and alarm panels still expect four, which is where the 4-Digit PIN Generator starts.
- 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.