Random String Generator
Generate random strings with customizable length and character sets
About the Random Token Generator
This random token generator produces URL-safe random strings of whatever length you need, for API keys, session identifiers and single-use links. Generation uses the browser cryptographic random source, and the output avoids characters that would need escaping in a URL.
A random token generator differs from a password generator in what the output has to survive. A token is handled by machines, appears in URLs and headers, and is compared exactly — so it must avoid characters that need escaping, and length matters more than memorability.
URL safety is the practical constraint. A token containing a plus, slash or equals sign breaks when it lands in a query string unencoded, which is why URL-safe alphabets exist and why tokens are usually alphanumeric with at most hyphens and underscores.
On length: 32 characters of alphanumeric randomness is a sensible floor for anything guessable-by-brute-force, such as a password reset link. And a genuine production secret should be generated server-side with a proper library — this is for development, testing and non-critical identifiers.
How to use the Random Token Generator
- Set the length. Choose at least 32 characters for anything guess-resistant.
- Use a URL-safe alphabet. Stick to alphanumerics so the token survives a query string.
- Generate. Tokens are produced from the browser secure random source.
- Copy and store. Take the token, and treat production secrets as server-generated.
Random Token Generator features
- URL-safe token output
- Any length from short identifiers upward
- Single or bulk generation
- Uses the browser cryptographic random source
- No ambiguous or escaping-sensitive characters
- Runs entirely in your browser
Frequently asked questions
How long should a token be?
At least 32 alphanumeric characters for anything that must resist brute force, such as a password reset link.
Why does URL safety matter?
A token containing a plus, slash or equals sign breaks when placed unencoded in a query string.
Can I use these as production secrets?
For development and non-critical identifiers, yes. Real production secrets should be generated server-side with a proper library.
How is this different from a password generator?
Passwords are for people and balance memorability. Tokens are for machines and prioritise length and URL safety.
Is the randomness secure?
It uses the browser cryptographic random source rather than a simple pseudo-random function.