Loading
Compiling your experience... ⚡
Decode a JSON Web Token’s header, payload, and signature, inspect its claims, verify an HMAC signature, or build and sign a brand new token — all computed with the Web Crypto API, entirely in your browser.
Click any tool card below to open its dedicated workspace.
Your tokens and secrets never leave your browser.
| Feature / Capability | TechyCoderWorld | Legacy Cloud Competitor A | Legacy Cloud Competitor B |
|---|---|---|---|
| Data Privacy | 100% In-Browser (0 Uploads) | Token pasted into a hosted debugger | Third-party analytics scripts |
| Decode vs. Verify Clarity | Explicit "decoding ≠ verifying" messaging throughout | Often conflated or unclear | Not distinguished |
| Encoder Safety | Algorithm selection always authoritative — cannot emit alg:none | Free-text alg field, easy to misuse | No encoder offered |
Decode an existing JWT, or write a header and payload to build a new one.
Read the header, payload, and a human-readable claims table with expiration warnings.
Verify an HMAC signature against a secret, or sign a new token with one.
Copy any segment, the full token, or the verification result.