JSON Formatter & Validator Online Tool
Instantly validate, format, and beautify your JSON data for easier reading and debugging. Convert messy JSON strings into clean, indented structures.
Input JSON Here
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The Essential Developer Tool: JSON Validation and Formatting
JSON (JavaScript Object Notation) is the industry-standard format for transmitting data across web applications and APIs. When working with large datasets, it's easy for formatting to become messy or for syntax errors to creep in. Our online tool solves this by providing instant validation and beautification.
The tool validates your JSON structure, pointing out the exact line and column where the syntax is broken, saving valuable debugging time. You can easily switch between beautified (cleanly indented) and minified (compact, no whitespace) formats.
Validation vs. Formatting
- Validator: Checks if the input string conforms to the strict JSON specification. If it fails, it provides a precise error location.
- Formatter (Beautifier): Takes valid JSON and applies indentation (1, 2, or 4 spaces) for hierarchical readability.
- Minifier: Takes valid JSON and removes all whitespace, creating the smallest possible file size for fast transmission.
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