Format, minify, and validate JSON instantly. Includes tree view, key sorting, and error detection β all free and private in your browser.
All processing happens in your browser. Your data never leaves your device.
Paste your JSON and click Format to beautify it with proper indentation. Use Minify to compress it into a single line. The validator checks your JSON in real-time and shows exactly where errors are located.
Working with JSON is part of everyday development β APIs, configs, data files. This tool helps you quickly format messy JSON, validate structure, explore nested data with the tree view, and sort keys for consistency.
JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data. It's the most common format for APIs, configuration files, and data storage in web development.
The tool parses your input using the built-in JSON parser and checks for syntax errors like missing commas, unmatched brackets, trailing commas, or invalid values. If an error is found, it shows the exact line and column.
Minify removes all unnecessary whitespace and newlines from your JSON, producing the most compact representation. This is useful for reducing payload size in APIs and storage.
The tree view parses your JSON and displays it as a collapsible hierarchy. You can expand and collapse objects and arrays, see value types color-coded, and click any node to see its JSON path.
The tool works entirely in your browser, so performance depends on your device. It handles most typical JSON files (up to several MB) without issues.
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