All Tools VerseJWT Decoder
Decode a JWT to read its header and payload claims, parsed in your browser so the token is never uploaded.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Decode a JSON Web Token to read its header and payload. Paste a JWT and see the decoded claims as formatted JSON. Decoding happens entirely in your browser and the token is never sent anywhere. This tool does not verify the signature.
How to Use JWT Decoder
- Paste your token. Drop the full JWT into the input, or load the sample.
- Decode it. Select the button to split and decode the token.
- Read the parts. The header and payload are shown as readable JSON.
- Copy what you need. Use the copy button to grab the payload.
Frequently Asked Questions
What is a JWT?
A JSON Web Token is a compact, signed token with three parts: a header, a payload of claims, and a signature.
Does decoding check the signature?
No. Decoding only reads the header and payload. Anyone can read those parts, since they are encoded, not encrypted.
Is it safe to paste a real token?
It is safe here because nothing leaves your browser, but treat tokens as secrets and do not paste them into untrusted tools.
Is anything sent to a server?
No. This tool runs entirely in your browser, so the values you enter, including any secrets, never leave your device.
Is it free?
Yes. Every tool here is free to use with no sign up.
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