Online JSON beautifier, formatter, viewer, and validator
JSON Beautifier helps you format JSON, inspect nested objects, and clean up API payloads in a browser-based split editor. Paste minified JSON on the left and review readable output on the right.
The tool is useful for debugging API responses, checking JSON structure before storing data, and turning compressed payloads into readable text during development.
Why developers use JSON Beautifier
- Pretty print raw JSON into a readable structure.
- Inspect nested arrays and objects side by side.
- Copy, paste, search, download, and adjust editor font size.
- Work with formatted JSON directly in the browser.
Common questions
What does JSON Beautifier do?
JSON Beautifier formats raw JSON into readable, indented output and lets you inspect it in a split-view editor.
Can I validate JSON before using it in an API or app?
Yes. Invalid JSON fails to parse, which makes malformed payloads easier to catch before you use them elsewhere.
Is JSON Beautifier free to use?
Yes. JSON Beautifier is a free online JSON formatter, beautifier, validator, and viewer.