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JWT Decoder

Decode JWT headers and payloads, with readable dates and expiry.

Token

Decodes only. Signatures are not verified. Do not use this output to decide whether a token is authentic.

What JWT Decoder does

Decode JWT headers and payloads, with readable dates and expiry.

How to use it

  1. Paste a three-part JWT.
  2. Read formatted header and payload JSON, date claims, and the expiry status.
  3. Copy the payload if needed. Decoding never verifies the signature or proves authenticity.

Formats and limits

  • Three-part JWT text. Decodes only and does not verify signatures, authenticity, or authorization.

Privacy

Processing stays in this tab. Input and generated content are not uploaded or stored.

Related tools

All processing runs locally in your browser. This tool is provided as-is without warranty. Keep backups of your original files before processing.

By uploading media, you confirm you own the content or have permission to modify it. Please read the Terms and Conditions.