JSON Formatter
Format, validate, and minify JSON. Beautify messy JSON in one click. It runs entirely in your browser — no signup, no installation, and nothing you paste or drop leaves your device.
What is JSON Formatter?
JSON Formatter is a free online developer tool built for developers debugging payloads, configs and code. Format, validate, and minify JSON. Beautify messy JSON in one click In practice you paste or type your JSON, choose format, minify or validate, and then copy the cleaned JSON or fix the error the validator points at.
Your code, tokens and payloads never leave the browser, which matters when you are debugging something under NDA or handling production data.
How to use JSON Formatter
- Paste or type your JSON.
- Choose format, minify or validate.
- Copy the cleaned JSON or fix the error the validator points at.
JSON Formatter FAQ
Is JSON Formatter free to use?
Yes. JSON Formatter is completely free and needs no account, no trial and no payment details. Every feature on the page is available without limits.
Is my data uploaded anywhere?
No. JSON Formatter runs entirely in your browser, so the text, file or number you enter never leaves your device.
Does JSON Formatter work on a phone or tablet?
Yes. It works in any modern browser on desktop, tablet and phone. There is no app to install and no account to create.
How do I use JSON Formatter?
Paste or type your JSON. Choose format, minify or validate. Copy the cleaned JSON or fix the error the validator points at.