JSON Formatter & Validator
Beautify, minify and validate JSON with helpful error messages.
JWT Decoder
Decode JSON Web Tokens and inspect header, payload and expiry.
Decoding happens in your browser. The signature is shown but not verified.
Header
Payload
Claims
100% private
Runs in your browser. Nothing is uploaded.
Instant results
No waiting, no queues, no page reloads.
Free & unlimited
No sign-up and no usage caps.
How to use the JWT Decoder
Decode JSON Web Tokens and inspect header, payload and expiry. It is one of 25 free coding tools on ToolzHive.
- 1 Paste or type your input into the editor on the left.
- 2 Choose any options. The result updates as you type.
- 3 Copy the output with one click or download it as a file.
Frequently asked questions
Is the JWT Decoder free to use?
Yes. The JWT Decoder is completely free, with no sign-up, no usage limits and no watermarks.
Is my data safe?
Yes. The tool runs entirely in your web browser, so the text and files you use are processed on your own device and are never uploaded to or stored on our servers.
Does it work on phones and tablets?
Yes. JWT Decoder works in any modern browser on desktop, Android and iOS, with no app to install.
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