JSON Formatter
Format, validate and minify JSON instantly — paste in, get clean output, copy with one click.
About JSON Formatter
A powerful, client-side JSON formatter and validator. Clean up messy JSON strings, minify large payloads, and validate your data structure instantly. Built for developers who need a reliable, private tool that doesn't send sensitive API payloads to a remote server.
How to use
- 1
Paste your raw JSON text into the Input panel.
- 2
Select your preferred indentation level (2 spaces, 4 spaces, or tabs).
- 3
Click 'Format' to beautify the JSON, or 'Minify' to compress it into a single line.
- 4
If your JSON is invalid, a detailed error message will point out the issue.
- 5
Click 'Copy' or the download icon to grab your formatted output.
Tip: All processing is performed locally in your browser with zero loss in quality and no upload limits.
Frequently Asked Questions
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