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General
☕ Java / Spring
🅰 Angular
🗄 Oracle DB
🐳 DevOps
⚡ General
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Language
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Quick Paste
Paste
JSON Formatter
JSON
Base64
Base64
Hash Generator
Hash
SQL Formatter
SQL
JWT Decoder
JWT
Cron Generator
Cron
Stack Trace
Stack
Regex Tester
Regex
JSON → Java DTO
DTO
Docker Compose
Docker
JWT Decoder
Decode and inspect JWT tokens, including header, payload, and expiration time.
Decode JWT
Clear
Next steps
Format the payload as JSON
Inspect the claims structure more clearly
Create Java DTOs from JWT claims
Map claims to Spring Security UserDetails
Hash the secret key
Use MD5/SHA-256 to verify the secret