Free Online Developer Tools
Format JSON online for free. Beautify, minify, and validate JSON from APIs, config files, and debugging output directly in your browser.
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Format, beautify, minify, and validate JSON for APIs, config files, and debugging. This page is written for a focused, practical workflow with clear inputs and reviewable output. Review the output before using it in production, publishing, or formal work.
The tool works from the content you provide in the browser. Avoid entering highly sensitive data into any web page unless you have reviewed the tool behavior.
Paste {"name":"Alex","active":true} to format it into readable, indented JSON.
JSON Formatter helps you format, beautify, minify, and validate JSON for APIs, config files, and debugging.
No. You can use the tool without signing up.
Text-based tools support copying, and file-based tools provide download options when output files are generated.
Yes. Always review generated, converted, or calculated output before using it in important work.
No. The tool works on the input you provide and shows a separate result.