JSON Formatter
Format, beautify and validate JSON instantly.
Keep or share the finished result
Copy or share after running the tool. Saved tools and settings stay in this browser.
What would you like to do next?
Format and validate JSON
Paste JSON above and it is parsed, validated and pretty-printed with consistent indentation. If the JSON is invalid you get a clear error so you can fix it. All parsing happens in your browser, so even sensitive payloads stay private.
Beautify vs minify
Beautifying adds indentation and line breaks for readability; minifying strips them to reduce size for transport. This tool focuses on readable, indented output.
Frequently asked questions
Is my JSON sent to a server?
No. Parsing and formatting are done entirely in your browser, so confidential data never leaves your device.
What indentation does it use?
It pretty-prints with two-space indentation, the most common default for readable JSON.