All tools / Data
JSON formatter
Format, validate and minify JSON, with the position of any error. Runs in your browser.
How to use it
- Paste your JSON.
- Press Format, Minify or Validate.
- Copy or download the result.
About this tool
Formatting adds indentation so JSON is easy to read. Minify removes whitespace to make it smaller. If the JSON is invalid, the tool shows where the parser stopped. Nothing you paste leaves your browser.
Questions
Is my JSON sent anywhere?
No. It is parsed in your browser.
Why does my JSON fail?
Common causes are trailing commas, single quotes instead of double quotes, and unquoted keys.
Can it sort keys?
Yes. Tick Sort keys before formatting.