JSON Formatter
To format JSON, paste it or open a .json file and click Format: ClickZM validates it, pretty-prints it with 2 or 4 spaces or tabs, can sort keys alphabetically, and shows the exact line and column of any syntax error.
- Free
- No signup
- Runs in your browser
How to use JSON Formatter
- 1Type or paste your input into the JSON Formatter.
- 2Choose any options you need.
- 3See the result update instantly.
- 4Copy the result or download it.
JSON Formatter: questions people ask
Is my JSON sent to a server?
No. Parsing and formatting use your browser's built-in JSON engine, so API keys and private data in the JSON stay on your device.
Can it fix invalid JSON?
It points to the error and explains common causes such as trailing commas, single quotes and unquoted keys, so you can fix it in seconds.
Is my data uploaded when I use the JSON Formatter?
No. The JSON Formatter runs entirely in your web browser, so your text and numbers stay on your device and work even on a slow connection.
Does the JSON Formatter work on iPhone, Android and Mac?
Yes. The JSON Formatter runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the JSON Formatter free?
Yes. The JSON Formatter is free with no signup, no watermark and no daily limit.