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.
What is JSON Editor?
Edit JSON in place with live validation. Use Format and Minify to tidy or compact your JSON, and copy when ready.
How to Use This JSON Editor
- 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.
Why Use This JSON Editor?
- 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.
You Might Also Like
JSON Formatter
Live
Pretty-print and format JSON with configurable indentation.
JSON Minify
Live
Minify JSON by removing whitespace and newlines.
JSON Validator
Live
Validate JSON and see errors with line and position.
JSON Viewer
Live
View JSON in a collapsible tree with expand and collapse.
XML to JSON
Live
Convert XML to JSON in the browser.
CSV to JSON
Live
Convert CSV to JSON in the browser. Supports custom delimiters.