JWT Toolkit — Free & Private

Decode and inspect JSON Web Tokens privately, or build and sign your own.

Runs 100% in your browser: your files and data never leave your device. No signup, no ads.

Tools in JWT Toolkit

• Private JWT Inspector: Inspect JWT tokens safely in-browser without sending secrets to any cloud service.
• JWT Builder: Build and sign custom JWT tokens with any header/payload claims

More Passwords & Auth tools

• Password Suite

Browse all free tools