Token Generator
Generate cryptographically secure random tokens using crypto.getRandomValues().
Character Pool Mode
Generation Options
Generated Tokens
Configure options above and click Generate.
About Token Generator
Token Generator is a free, browser-based tool that creates cryptographically secure random tokens using the browser's crypto.getRandomValues() API. Everything runs in your browser, so the tokens are never sent to a server or saved in localStorage.
It is useful when you need random strings such as API keys, passwords, session identifiers, or one-off secrets without relying on a third-party generator. You can build the character pool from presets (uppercase, lowercase, digits, symbols) or supply your own custom character set, and optionally include spaces.
Set the token length from 1 to 256 characters and generate from 1 to 20 tokens at once. You can allow repeated characters or require all characters to be unique, and copy any single token or all of them to the clipboard. Options re-apply on the fly after the first generation.
Because generation is fully client-side and stateless, nothing is stored between sessions; closing or refreshing the page discards the results. If you disable duplicate characters, the token length cannot exceed the size of the chosen character pool.
Frequently asked questions
- Are the generated tokens really secure?
- Yes. Tokens use crypto.getRandomValues(), the browser's cryptographically secure random number generator, rather than Math.random().
- Are my tokens sent anywhere or saved?
- No. Generation happens entirely in your browser, and tokens are never transmitted to a server or written to localStorage. They disappear when you refresh or close the page.
- Why do I get an error when I turn off duplicate characters?
- Without duplicates, each character can appear only once, so the token length must be smaller than or equal to your character pool. Add more characters or shorten the length to resolve it.