Encode Decode JWT

Decode, inspect, and encode JSON Web Tokens.

Encoded Token
Verify Signature
Used to recalculate and verify the hash.
Decoded Data Status

HEADER: ALGORITHM & TOKEN TYPE

PAYLOAD: DATA

Use this encoder/decoder when you need to decode, inspect, and encode JSON Web Tokens. It is useful for quick browser-based checks before you commit a snippet, send an API request, or write a one-off script.

For code and data tasks, start with a small representative sample before running a larger payload. Watch for encoding, escaping, indentation, delimiters, and hidden whitespace because those details often explain confusing output.

When the output feeds another development task, JSON validator, JSON formatter, and HTML formatter can help validate, format, inspect, or transform the result before it goes into code or an API.

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