Developer utilities
Format, convert, and inspect data in the browser. No upload, no account — built for agent and API workflows.
Runs locally · nothing leaves your browser
Pretty-print, minify, validate, and diff JSON. Paste API responses or tool-call payloads.
Open tool → DecodeInspect header and payload from a JSON Web Token. Decode only — no signature verification.
Open tool → ConvertConvert between JSON and YAML for configs, docker-compose snippets, and CI files.
Open tool →