JWT Decode Online: Instant Token Decoder
Free, secure, and instant JWT token decoding right in your browser
Decode Your JWT NowPaste JWT Token Here
How JWT Decode Works
Understanding JWT Structure
JSON Web Tokens consist of three parts separated by dots (.), which are:
- Header - Contains the token type and signing algorithm
- Payload - Contains the claims (user data and metadata)
- Signature - Verifies the token hasn't been altered
Our decoder splits these parts and displays them in a readable format. All processing happens client-side - your tokens never leave your browser.
JWT Decode Across Platforms
JavaScript
// Using npm package
import jwtDecode from 'jwt-decode';
const decoded = jwtDecode(token);Flutter
// Using dart package
import 'package:jwt_decoder/jwt_decoder.dart';
Map decodedToken = JwtDecoder.decode(token); Java
// Using JJWT library
Jws jwsClaims = Jwts.parserBuilder()
.setSigningKey(key)
.build()
.parseClaimsJws(token); Command Line
// Using Node.js CLI
$ npx jwt-cli decode <token>
// Using jq
$ echo $TOKEN | cut -d. -f2 | base64 -d | jqKey Features & Benefits
No Installation Required
Decode tokens instantly in your browser with no downloads or installations.
100% Client-Side
All processing happens in your browser. Your tokens never leave your device.
All JWT Formats
Support for all JWT formats and algorithms including HS256, RS256, ES256.
Advanced Options
Validation, verification, and custom formatting options for power users.
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