JSON : visualisation, formatage et minification

Collez du JSON — validation locale.

Paste messy API JSON, validate instantly, then copy a clean or minified version.

How to use this tool

  1. Paste JSON into the input area or load a sample.
  2. Switch between Format, Minify, and Validate to shape the payload.
  3. Open the Tree tab to explore nested objects and expand or collapse nodes.
  4. Copy the output or keep editing — nothing leaves your browser tab.

Typical use cases

  • Debugging REST responses and webhooks before filing a ticket.
  • Shrinking JSON payloads for mobile fixtures or demos.
  • Reviewing large config files without installing a desktop editor.

Limits & caveats

  • Very large documents may feel slow on low-memory devices.
  • Relaxed parsing accepts some non-standard JSON — double-check before production.

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Idéal pour déboguer des API REST et des fichiers de configuration.

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