toolcli

API Debug Workflow

Tidy JSON payloads, decode JWTs, and sign requests in one focused flow.

Beautify, minify, and sanity-check JSON bodies.

Decode JWT headers or payloads to check claims.

Generate HMAC-SHA256 and SHA-256 checksums.

Module A

JSON Payload Lab

JSON input

Formatted output

Run Beautify / Minify to see output here.

Module B

JWT token

Decoded output

Decode a segment to see JSON here.

Module C

Secret Message

Signature output

Run signing to generate output.