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Guide & FAQ

Quick guide

  1. Paste, upload or fetch JSON into the left editor.
  2. Use the center column to validate, beautify, minify or convert to CSV / XML / YAML.
  3. The right pane previews the output instantly; switch between Code / View / Tree at any time.
  4. 🧹 removes all whitespace, πŸ“‚ uploads local files, 🌐 fetches data from URLs. πŸ“‹ / πŸ—‘ copy or clear either pane.

FAQ

Why use this JSON formatter?
Everything runs client-side. Your data never leaves the page, and you get live tree view plus one-click conversions.

When should I format JSON online?
Whenever you need to inspect or share raw API responses, tidy configuration files or prep data for docs.

How do I format a JSON file?
Upload with πŸ“‚, choose an indent size, then press β€œFormat / Beautify”.

How to use a URL?
Click 🌐, paste any HTTPS link (≀1 MB). The content is fetched locally and wiped on exit.

Is login required?
No accounts, no tracking, no server storage -- open the page and start working.

Accidentally cleared the data?
Hit Ctrl/Cmd + Z or re-upload / reload the original file.

Need help or have suggestions? Visit our Support Center.