JSON Formatter — Free Online
Beautify, validate and minify JSON. Works in your browser, no install needed.
Free with a CeevTech Tools account — no credit card required.
How to use JSON Formatter
Paste your JSON into the input box.
Click Beautify to indent it, or Minify to compress it.
Copy the result.
Why use CeevTech JSON Formatter?
Paste messy or minified JSON and get it back neatly indented and easy to read, or squeeze it into a single line for production. CeevTech JSON Formatter also flags invalid JSON, so you can spot a missing comma or bracket immediately. Everything runs in your browser, so API keys and private data in your JSON stay on your machine.
- Fast: processes your code or data in seconds.
- Private: runs in your browser, so nothing is uploaded.
- Works everywhere: desktop, tablet and phone, in any modern browser.
- One account, 79+ tools: PDF, image, office, AI, developer and business tools in one place.
Frequently asked questions
What happens if my JSON is invalid?
The formatter shows an error instead of output, so you know the JSON needs fixing before you use it.
Is my data sent to a server?
No. Formatting happens locally in your browser.
Is JSON Formatter free?
Free with a CeevTech Tools account — no credit card required.
Do I need to install anything?
No. JSON Formatter runs online in your browser on Windows, Mac, Linux, Android and iPhone.
Is my data private?
Yes. JSON Formatter runs entirely in your browser, so your data never leaves your device.