QuakeStar Tools

Free online utilities for PDF compression and image resizing

JSON Formatter & Validator

Paste your JSON below to format, validate or minify it. Everything happens in your browser — no data is uploaded.

What does this tool do?

It checks whether your JSON is valid and reformats it with proper indentation. You can also switch to minified output for use in production.

JSON FAQ

Is my JSON sent to a server?
No. Parsing and formatting happen entirely in your browser.
What if my JSON is invalid?
The tool displays an error message with a description of the parsing problem.