JWT Decoder & Token Viewer is a fast, offline-first developer tool designed to inspect, decode, and analyze JSON Web Tokens (JWT) with clarity and precision.
Paste any JWT token and instantly view: • Decoded header and payload • Formatted JSON with clear readability • Token expiration (exp), issued at (iat) and validity status • Signature segment (raw)
Built for developers who need speed, reliability, and privacy.
KEY FEATURES • Instant JWT decoding (offline) • Header & payload JSON viewer • Human-readable expiration and countdown • Copy header, payload or full decoded data • Export decoded token to PDF • Extract JWT tokens from PDF files • Share decoded results easily • Token history with search and favorites • Developer utilities: timestamp conversion & Base64URL decoding
PRIVACY FIRST • No account required • No server processing • Tokens stay on your device • Optional private mode (no history)
FREE & PRO The free version includes core decoding features with ads. Upgrade to Pro to remove ads and unlock advanced features such as unlimited history, PDF export without watermark, and productivity tools.
JWT Decoder & Token Viewer is ideal for backend developers, mobile developers, security engineers, and anyone working with authentication tokens.
Fast. Secure. Developer-friendly.
Latest version
Version
1.0.0
Update
Dec 21, 2025
Package ID
com.kns.jwtdecoder
What's new
Dec 21, 2025
• Improved JWT decoding stability and accuracy • Better handling of complex claims (arrays and objects) • Enhanced JSON formatting (Pretty / Raw modes) • UI and readability improvements for decoded tokens • Bug fixes and performance optimizations