Text & web
JSON Formatter
Make JSON readable, check that it is valid, find the line with an error, minify it or sort the keys. Handy for developers working with APIs.
How to use the JSON Formatter
- Paste JSON.
- Press Format, Minify or Sort keys.
- Copy the result.
Example
Paste a one-line API response and press Format to see it neatly indented.
Common JSON errors
- A comma after the last item in a list or object
- Single quotes instead of double quotes
- Keys without quotes
- Comments, which JSON does not allow
- Missing closing brackets
Format or minify
Format adds spaces and line breaks so people can read the data. Minify removes them to make files and API responses smaller.
Related free tools
Frequently asked questions
Is my JSON sent to a server?
No. It is parsed in your browser.
Can it handle large files?
Yes, files of a few megabytes work in most browsers.
Does it fix errors automatically?
It shows where the error is so you can fix it yourself.
Results are estimates for planning. For tax, legal or religious decisions, confirm with a qualified person. Your inputs stay in your browser and are not sent to Soft2Cloud.