JSON Beautify
Paste minified or messy JSON, pick an indent width, then Beautify. Indent uses spaces (2, 3, or 4 tab spaces). Processing stays in the browser.
About JSON Beautify
Our free JSON beautifier formats minified or messy JSON into clean, readable, properly indented output in one click. Choose a 2, 3, or 4 space indent, or minify JSON again to shrink payload size for production. It is a fast way to pretty-print API responses, package.json files, tsconfig, and other configuration documents while confirming that the JSON is valid. Invalid input is flagged so you can fix a missing comma or trailing character before you commit.
Pretty printing JSON helps in code review, logging, and documentation. A single-line payload from a network tab becomes a structured document you can scan, share in a ticket, or paste into a README. Minify when you need a compact string for an environment variable, a bookmarklet, or a size-sensitive request body. Switching indent width lets you match the style of your repository.
Frontend and backend developers, DevOps engineers, and anyone who works with REST or GraphQL responses will find a JSON formatter useful every day. Load a file or paste from the clipboard, beautify, copy, and move on. The tool does not re-order keys or change values; it only changes whitespace so the data stays exactly the same.
All formatting happens in your browser with nothing sent to a server. That means private configs, secrets inside JSON, and production dumps never leave your device. Use this free online JSON formatter and JSON minifier whenever you need readable or compact JSON without installing an editor plugin.