JWT Decoder
Decode JSON Web Tokens to inspect their header and payload claims, with expiry checks. Tokens never leave your browser.
How it works
- 1
Paste your input
Type or paste your data into JWT Decoder.
- 2
Adjust options
Tweak the available settings — the output updates as you type.
- 3
Copy the result
Copy the output to your clipboard or download it as a file.
Common uses
- Inspect a JWT's claims to debug an auth issue.
- Check a token's expiry and issuer without a library.
- Read a payload while building an OAuth flow.
About the JWT Decoder
Decode JSON Web Tokens to inspect their header and payload claims, with expiry checks. Tokens never leave your browser.
JWT Decoder is part of a free, privacy-first toolkit. Everything is computed instantly on the client, so your data never leaves the page — useful when you're working with sensitive payloads.
Because jwt decoder works without any sign-up or installation, you can use it as often as you like and it's always available — on desktop or mobile, and even offline.
Explore more developer tools, or try JSON Formatter · JSON Validator.
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JWT Decoder — FAQ
No. Decoding reveals the header and payload for inspection but does not verify the signature — never trust an unverified token for auth decisions.