Is it safe to paste my JWT token here?

Yes. The decoder runs entirely in your browser. Your token is never transmitted to any server, stored in any database, or logged anywhere.

Can it decode tokens from cookies or HTTP headers?

Yes! You can paste entire cookie strings or 'Bearer ...' headers. The tool automatically extracts the JWT from the surrounding text.

Does it verify the signature?

This tool decodes and inspects tokens but does not verify signatures, as that requires the secret key or public key which should never be shared in a client-side tool.

Best JWT Decoder — Decode JSON Web Tokens Online (Fast)

100% Private

Processed in your browser memory only.

No Tracking

We never store or log your sensitive data.

Safe & Secure

Encrypted via standard browser sandbox.

What is a Jwt?

A JWT Decoder parses JSON Web Tokens (JWTs) by splitting the Base64URL-encoded segments into their Header, Payload, and Signature components. It displays the decoded JSON with syntax highlighting, detects expiration timestamps, and validates whether the token is still active — all without sending your token to any server.

Why use Birhrt Dev Tools?

Most online developer tools upload your data to a server for processing. This exposes your API keys, personal info, and proprietary code to potential leaks. Birhrt Dev Tools is built differently. Every tool here runs entirely in your browser using modern Web APIs. No server-side processing, no storage, and zero data transmission.

Instant JWT decoding with Base64URL parsing
Color-coded Header (red), Payload (purple), Signature (blue) sections
Automatic expiration detection with valid/expired status
Issued-at (iat) timestamp with relative time display
Smart extraction from cookies, Bearer headers, and raw strings
100% client-side — tokens never leave your browser

How to Use This Tool

1Paste your JWT token (starting with 'eyJ...') into the input field.
2The tool automatically decodes the Header, Payload, and Signature.
3View the algorithm and token type in the Header section.
4Inspect claims like 'exp', 'iat', 'sub' in the Payload section.
5Check the expiration status — the tool shows if the token is valid or expired.
6Copy any section with the built-in copy buttons.

Frequently Asked Questions

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