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JWT decoder and HMAC verification

Inspect token contents and verify HMAC signatures.

01

Enter your text

On-device processing
Input · Up to 2 MB
02

Output options

Decoding does not establish trust in a token. Signature verification uses the supplied key and supports HS256, HS384 and HS512 only.

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JWT decoder and HMAC verification · How to use

Inspect token contents and verify HMAC signatures.

  1. Enter your text
  2. Set your options
  3. Convert
  4. Inputs and results are not saved automatically. Copy or download the results you need.

Example

Paste a JWT to read its header and payload, and optionally enter a key for HMAC verification.

Things to know

Decoding does not establish trust. Signature verification supports only HS256, HS384 and HS512.

Output options

HMAC verification key (optional)
Check the input format.

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