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Indent minified JSON to inspect its nested structure quickly.
JSON Formatter and Validator
JSON Formatter and Validator
Format, minify, sort, and validate JSON with clear syntax error locations.
Key features
- Formats JSON with 2-space, 4-space, or tab indentation.
- Minifies valid JSON into a single line.
- Sorts object keys alphabetically for deterministic output.
- Shows the line and column for JSON syntax errors.
How to use
- Paste JSON into the input field.
- Choose Format, Minify, or Sort Keys.
- Copy the result or download it as a .json file.
Examples
Normalize JSON before a diff
Use sorted keys and consistent indentation to create comparison-friendly output.
Privacy
JSON parsing, formatting, and download-file creation run in your browser.
Common questions
- Does it show where invalid JSON fails?
- It displays the parser error and, when available, a line and column to help locate a bad comma or quote.
- Can object keys be sorted?
- Yes. Sort keys recursively, then output with two spaces, four spaces, tabs, or as one minified line.
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