Make JSON readable, find the line with the error, sort keys or minify it.
Runs in your browser. Nothing you type is stored or sent.
Valid JSON
No. This runs in your browser, so what you type stays on your device.
We build business websites in 7 days and web apps in weeks, for a fixed price. Then we automate the busywork around them.
Book a free strategy callThe JSON Formatter makes JSON readable, checks it for errors and can minify it again. It points to the exact line of a mistake.
Your data and code are processed on your device, which matters for API keys, customer records and private code. Each tool does one job quickly, with no sign-up.
More free tools: see every tool.