JSON Formatter
DeveloperPaste messy JSON and get clean, indented output instantly. Validates as you type and points at the exact error when something is broken.
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About JSON Formatter
Paste messy JSON and get clean, indented output instantly. Validates as you type and points at the exact error when something is broken. Open the tool in your browser and follow the controls above. Some tools use external services; see the privacy page before submitting sensitive input.
How to use JSON Formatter
- 1Open the JSON Formatter tool above.
- 2Enter or paste your input.
- 3Choose your options.
- 4Wait for processing to finish, check the result, then download or copy it if that option is available.
Frequently asked questions
Is JSON Formatter free?
A free account includes two tries of JSON Formatter. Pro removes the site's trial limit. See the pricing page for details.
Is JSON Formatter safe and private?
Processing varies by tool. Many file utilities run on your device; AI and other server-backed features send input to external services. Read the privacy page before using sensitive information.
Do I need to install anything?
No. JSON Formatter runs entirely online in your web browser, nothing to download or install.