Secure Token Generator
Generate cryptographically secure tokens in your browser — 16, 32, 64, or 128 bytes, as hex, Base64, or URL-safe — plus JWT-secret and API-key presets.
Options
Secure · localTokens
About Secure Token Generator
This tool generates cryptographically secure random tokens — in hex, Base64, or URL-safe form, with presets for JWT secrets and API keys. It targets developers who need a high-entropy secret for signing, session identifiers, or service credentials.
Secrets pasted from a keyboard or copied from examples are dangerously low-entropy. Generating them from the browser’s secure random source produces real, unguessable values that never touch the network.
Step by step
- Pick the byte length, or choose a preset such as a 32-byte JWT secret or API key.
- Select the output encoding: hex, standard Base64, or URL-safe Base64.
- A token is generated instantly from the secure random source.
- Generate another at any time, then copy the value into your secret store.
What it offers
- 16, 32, 64, or 128-byte tokens
- Hex and Base64 output
- Cryptographically secure source
- Token generation in the browser
Tips for best results
- Use URL-safe encoding for tokens that appear in links or query parameters.
- Store the generated secret in an environment variable or secret manager, never in source control.
- Rotate long-lived secrets periodically and after any suspected exposure.
Why people use it
High entropy
Each token is drawn from the cryptographic random generator for genuine unpredictability.
Multiple encodings
Hex, Base64, and URL-safe output to match where the secret will live.
Useful presets
JWT-secret and API-key sizes are ready without manual byte counting.
Local only
Secrets are created in your browser and never sent to a server.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.