JWT Decoder & Verifier

by oslook.com · oslook.com · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Decode and verify JWT tokens (JSON Web Token) with a beautiful interface

Users

+2 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#116K

#97K among extensions

Version

0.0.2

updated 17 Jul 2026

Users

monthly, 2 years

Latest, 16 Oct 2026: 42 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JWT Decoder & Verifier

JWT Decoder & Verifier is a browser extension that helps developers and security professionals work with JSON Web Tokens (JWT). It provides real-time decoding and signature verification in a beautiful, user-friendly interface. ### Why Choose This Extension? - **Real-time Decoding**: Instantly see the decoded header and payload as you paste your JWT - **Visual Clarity**: Color-coded token sections for better readability - **Secure Verification**: Verify JWT signatures with your secret key - **Base64 Support**: Built-in support for Base64 encoded secrets - **Developer Friendly**: Clean interface designed for daily development workflow - **Multi-language Support**: Available in 20+ languages - **Privacy First**: All processing happens locally - no data leaves your browser ### Perfect For: - Backend Developers working with JWT authentication - Frontend Developers debugging JWT-based APIs - Security Professionals analyzing JWT tokens - QA Engineers testing JWT implementations - DevOps Engineers troubleshooting JWT issues