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Bearer Token Generator

Create random bearer tokens with a custom prefix, length and encoding, and see the entropy in bits.

Generate bearer tokens

Entropy per token: —
Token length: —
Encoding: —
Tokens come from the browser cryptographic random generator and are never transmitted.

How to use the Bearer Token Generator

  1. Type the prefix you want in front of every token.
  2. Set the byte length, the encoding and how many tokens you need.
  3. Click Generate, then copy the tokens into your service.

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Frequently Asked Questions

Common questions about the free online bearer token generator.

A bearer token is a secret string that a client sends in the Authorization header. Whoever holds the token is treated as the caller.
They are built from the browser cryptographic random generator, so they are suitable for API keys and session secrets.
At least 32 bytes, which is 256 bits of entropy. Anything shorter is easier to guess with brute force.
It is the number of random bits in the token. More bits means a much larger search space for an attacker to cover.
Use base64url for headers and URLs, hex when you need a plain alphanumeric string, and alphanumeric for the safest option.
No. They exist only in this page while it is open, and they are never written to storage or sent over the network.
Yes. A short prefix such as a project name makes leaked tokens easy to spot in logs and secret scanners.
Yes. Set the count up to 50 and the tool prints one token per line so you can copy them all at once.
Yes. The generator is free, unlimited and needs no account or sign-up.

Last updated: October 10, 2026