What this tool does
It generates random browser-only values in three styles: customizable strings, grouped API-key-style values, and raw tokens encoded as URL-safe Base64 or hex.
String / Token Generator
Generate random strings, API-key-style values, and secure tokens with Web Crypto directly in your browser. The generated output never leaves the page, is never uploaded, and is never stored in server memory.
Random string mode is useful for invite codes, fixture data, and any situation where you want a customizable random string.
Output length
0
Estimated entropy
0 bits
Randomness source
Web Crypto
Profile
Random string
Token mode starts from raw random bytes, then encodes them into URL-safe Base64 or hex.
Why it is private
Generation happens inside your browser with Web Crypto, so the server never receives the output and never stores it in server memory.
How the profiles differ
- Random string: for invite codes, mock data, and general random identifiers.
- API key format: for grouped keys with a readable prefix and separator.
- Secure token: for raw random token material you want in URL-safe Base64 or hex.
Important note
This tool only generates random values. It does not register keys with another service, and generated API-key-style output is just formatting unless a system on your side chooses to accept it.