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The formatter takes raw JSON (compact or poorly indented) and structures it cleanly. It does not fix syntax: if the JSON is invalid, the error tells you the exact line and character of the problem.
Free, no account required, browser processing and no server upload.
The formatter takes raw JSON (compact or poorly indented) and structures it cleanly. It does not fix syntax: if the JSON is invalid, the error tells you the exact line and character of the problem.
JSON5 or JSON with comments will not pass. Remove comments first, or use a dedicated transpiler before pasting content here.
Input: {"name":"Dupont","age":42,"active":true} → Formatted output on 6 lines with indentation, sorted keys: active, age, name. No more counting braces mentally.
Format JSON helps you complete this task directly in your browser. You keep control of your data and get the result locally.
Yes. Format JSON is free to use and runs in your browser without sending files or content to Lmaotools servers for processing or storage.
No. Files and content added to the tools are processed in your browser. They are not sent to Lmaotools servers for conversion or storage.
No. Open the tool, add your file or content, then get the result. Processing happens locally in your browser.