JWT Decoder
Decode JWT header and payload instantly in your browser.
Header
{
"alg": "HS256",
"typ": "JWT"
}Payload
{
"sub": "1234567890",
"name": "Toolara",
"iat": 1516239022
}Signature
signature
Decoding only — signature verification is not performed in the browser.
About this tool
Decode JWT header and payload online without sending tokens to a server backend for parsing. Inspect claims quickly during auth debugging.
- Decode header and payload JSON
- View signature segment separately
- Client-side decoding only (no signature verification)
Prefer a walkthrough? Read the JWT Decoder guide.
Guides
Learn the workflow, then jump back into the free tools
Guide for this tool
How to Use JWT Decoder
Decode JWT header and payload instantly in your browser. A practical Toolara guide with tips, workflow advice, and links to the free online tool.
5 min read
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