JavaScript developers constantly work with JSON: parsing fetch responses, reading configuration files, or inspecting objects logged to the console. When console.log gives you a collapsed blob or JSON.stringify produces a wall of text, you need a fast way to make it readable. Paste your JavaScript JSON output here and get instant formatting with syntax highlighting that matches the types you are used to seeing in your browser DevTools.
Format, minify, and validate JSON — instantly, in your browser.
Your tidy JSON shows up here
Paste some JSON on the left and hit Format. We'll pretty-print and color-code it for you.
All processing happens entirely in your browser — no data is ever sent to a server.