NextAuth JWE Decoder

Decode NextAuth v4 JWE session tokens locally in your browser. Private by design, fast, and offline-compatible.

Features

• 100% client-side — no servers, no analytics, no tracking
• Works offline after first load (no external fonts or requests)
• Accessible, responsive UI with light/dark themes
• Copy decoded payload to clipboard
• Simple unit tests for core decoding logic

Development

bun install
bun run dev

Build

bun run build
bun run preview

Test

bun test

Privacy

Decoding happens entirely in your browser. No data is transmitted or stored.