INPUT JSON
FORMATTED OUTPUT
Common use cases
- Format messy API responses into readable indented code
- Validate JSON config files before deployment
- Minify JSON to reduce payload size
- Sort JSON keys to compare two objects
Frequently asked questions
Why does my JSON not validate?
Most common causes: trailing commas after the last item, single quotes instead of double quotes, unquoted keys, or comments (use JSON5 for those).
Is there a file size limit?
The browser handles JSON up to about 10MB comfortably.
Can I sort nested objects?
Yes. Sort Keys alphabetizes keys at every nesting level recursively.