JWT Decoder for TypeScript
Free online jwt decoder with TypeScript code examples
Working with jwt decoder in TypeScript? Our free online jwt decoder helps TypeScript developers format, validate, and process data instantly. Below you will find TypeScript code examples using jose so you can achieve the same result programmatically in your own projects.
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Open JWT DecoderTypeScript Code Example
import * as jose from 'jose';
const token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c";
// Decode header and payload without verification
const header = jose.decodeProtectedHeader(token);
const payload = jose.decodeJwt(token);
console.log("Header:", JSON.stringify(header, null, 2));
console.log("Payload:", JSON.stringify(payload, null, 2));Quick Setup
Library: jose
npm install joseTypeScript Tips & Best Practices
- jose is fully typed and works in Node.js and browsers
- decodeJwt() does NOT verify — use jwtVerify() for that
- jose supports JWE, JWS, and JWK in addition to JWT