JSON Formatter
Everything runs in your browser — no data ever leaves your device.
About JSON Formatter
Format, validate and explore JSON online. Pretty-print messy JSON, spot syntax errors instantly and inspect the structure — free, no sign-up.
Is everything free?
Yes. All tools, games and demos on Tu-X are free to use. The site is supported by non-intrusive ads.
Do my data and files leave my device?
Most tools run entirely in your browser — your text, images and files never leave your device. See our Privacy Policy for details on each product.
Do I need an account?
No. Every product works instantly, with no sign-up required.