JSON Editor - Free Online Tool
Edit JSON in place with live validation. Use Format and Minify to tidy or compact your JSON, and copy when ready.
Edit JSON
Invalid
Input is empty.
How to Use This Tool
- Paste or type JSON in the editor.
- Watch the Valid/Invalid indicator update as you type.
- Use Format to pretty-print or Minify to compact.
- Copy the result to the clipboard.
Benefits of Using This Tool
- Live validation so you see errors immediately.
- Format and minify without leaving the page.
- Runs in your browser; no data sent to servers.
When to Use JSON Editor
- Quick edits to API request bodies or config files.
- Prepare JSON before sending or saving.
- Fix syntax with immediate feedback.
FAQs
Is my JSON sent to a server?
No. Editing and validation run entirely in your browser. Your data never leaves your device.
Can I format invalid JSON?
Format and Minify require valid JSON. Fix the reported error first, then use those actions.
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