JWT 디버거

Node.js 22+ · ES module (.mjs)

현재 입력 반영은 코드에 사용된 항목에만 적용됩니다. 파일 입력은 예제에 포함하지 않습니다.

npm install jose

import { SignJWT, decodeJwt, jwtVerify } from "jose";

const algorithm = "HS256";
// Test key only. Load your real key from a secret store.
const key = new TextEncoder().encode("demo-key-".padEnd(64, "x"));
const expiryMinutes = Number("30");
const token = await new SignJWT({ sub: "user-123" })
  .setProtectedHeader({ alg: algorithm })
  .setIssuedAt()
  .setExpirationTime(Math.floor(Date.now() / 1000) + expiryMinutes * 60)
  .sign(key);
console.log(token);
console.log(decodeJwt(token)); // Decoding does not verify trust.
const verified = await jwtVerify(token, key, { algorithms: [algorithm] });
console.log(verified.payload); // Signature and exp/nbf checked.
// Set issuer and audience options when your service requires them.