JWT Decoder Online - Free JWT decoder to inspect JSON Web Tokens instantly.
Free online JWT decoder. Inspect JWT header and payload claims instantly. All decoding happens securely in your browser.
How to Use JWT Decoder
- 1Paste your JWT token into the input area.
- 2The header and payload are decoded automatically.
- 3Copy any decoded section.
Frequently Asked Questions
What is a JWT?
A JSON Web Token (JWT) is an open standard (RFC 7519) for securely transmitting information between parties as a compact, URL-safe string. It consists of three parts: header, payload, and signature.
Is it safe to paste my JWT here?
This tool processes everything in your browser. No data is sent to any server. However, avoid pasting tokens that grant access to production systems.
Does this tool verify JWT signatures?
No. This tool only decodes the header and payload. It does not verify the signature, as verification requires the secret key or public key.
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