JSON Formatter

Format and validate any JSON data instantly in your browser. Supports 2-space, 4-space, and tab indentation. Features syntax error detection with line/column info, collapsible tree view, minification, and JSON statistics.

JSON Formatting Options

2-space indentation: Compact but readable. 4-space indentation: Standard for most projects. Tab indentation: Alternative for specific style guides. Minify: Remove all whitespace for smallest file size.

Validation Features

Syntax checking with precise error location (line and column). Shows the exact position where parsing failed. Common JSON errors detected: trailing commas, missing quotes, invalid escape sequences, mismatched brackets.

Tree View

Collapsible/expandable tree view of JSON structure. Click to expand/collapse objects and arrays. Shows data types (string, number, boolean, null, object, array). Makes complex JSON structures easy to navigate.

JSON Statistics

Total lines, character count, number of keys, object count, array count, and nesting depth. Helps understand JSON structure complexity.

Export Options

Copy formatted JSON to clipboard. Download as .json file. Minified version for production use.

Common Use Cases

API development: Format API responses for debugging. Configuration files: Pretty-print JSON configs. Data exchange: Validate JSON before sending. Documentation: Format JSON examples for documentation.