Decode JWT headers and payloads locally in your browser.
Decode JWT headers and payloads locally in your browser. It is designed for quick browser-based development work without requiring an account.
JWT Decoder is designed for focused browser-based developer work. Use the interactive tool above for the operation, then verify important output in your own project or environment before deploying it.
Quick development checks, transformations and repeatable everyday tasks.
Keep a known-good sample input nearby and test both normal and edge-case input before using generated output in production.
It reads the Base64URL-encoded header and payload sections of a JSON Web Token and displays their JSON content.
No. Decoding a JWT is not the same as cryptographically verifying its signature.
Avoid exposing sensitive credentials. Use test tokens or tokens that are safe to disclose.
A common signed JWT has a header, payload and signature separated by dots.
Decode JWT headers and payloads locally in your browser.
Everyday writing, development and productivity workflows.