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Guide & FAQ
Quick guide
- Paste, upload or fetch JSON into the left editor.
- Use the center column to validate, beautify, minify or convert to CSV / XML / YAML.
- The right pane previews the output instantly; switch between Code / View / Tree at any time.
- π§Ή removes all whitespace, π uploads local files, π fetches data from URLs. π / π 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 π, choose an indent size, then press βFormat / Beautifyβ.
How to use a URL?
Click π, paste any HTTPS link (β€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.