JSON Formatter

Never. All formatting, validation and processing happens entirely in your browser using JavaScript. Your JSON data never leaves your device — nothing is uploaded or stored anywhere.

Format (beautify) adds indentation and line breaks to make JSON readable. Minify removes all whitespace to produce the smallest possible output — useful for APIs and network transmission.

The validator uses JavaScript's native JSON.parse() to detect syntax errors in real time as you type. When an error is found, the exact line and character position is shown in the error banner at the bottom of the input panel.

Tree View renders your JSON as an interactive collapsible tree. Click any node to expand or collapse it. Click any key to see its full dot-notation path (e.g. users[0].address.city). Great for exploring large or nested JSON structures.

Sort Keys alphabetically sorts all object keys at every level of nesting. This makes it easier to compare two JSON objects or find keys quickly in large structures.

Escape converts a JSON string into an escaped version (with \" and \n) suitable for embedding inside another JSON string or a URL. Unescape reverses this, converting escaped characters back to their original form.