JWT Decoder & Inspector
Decode JWTs and inspect claims locally
Top-level workflow
Security Hygiene
Inspect security-adjacent strings locally: hashes, passwords, JWTs, random tokens, signatures, and certificates.
Use this for local inspection and debugging, not as a replacement for production security review.
Primary Tools
Password Generator
Create strong custom passwords
Random String
Generate random alphanumeric strings
SHA-256 Generator
Hash text with SHA-256
Workflow Lessons
beginner 8 min
Generate a Strong Password With the Right Constraints
Generate a password that fits the system policy without weakening it by hand afterward.
beginner 8 min
Generate Random Tokens for Safe Test Fixtures
Create local-only fixture tokens that look realistic without copying real secrets.
beginner 8 min
Verify a SHA-256 Hash Before Trusting a File
Generate a digest and compare it carefully instead of relying on a filename or screenshot.
beginner 8 min
Inspect a JWT From a Failing API Request
Decode a bearer token, read its claims, and check why auth works in one environment but fails in another.