Developer

JWT Decoder

Decode and inspect JWT tokens. All processing happens in your browser — nothing is sent to a server.

Paste JWT Token

🔒 Security note: Never paste production secrets or tokens containing sensitive user data into online tools. This decoder is client-side only.

⚠️ Security Notice: JWT tokens often contain sensitive user data and credentials. This tool decodes entirely in your browser — no data is sent to any server. However, you should never paste production JWTs into any online tool. Treat JWTs like passwords: rotate them immediately if you believe they have been exposed.