JSON Formatter & Validator
Beautify, minify, validate, and explore JSON with syntax highlighting and tree view.
What is JSON Formatting?
JSON (JavaScript Object Notation) formatting transforms minified or poorly indented JSON into a clean, readable structure with proper indentation and line breaks. Well-formatted JSON is essential for debugging API responses, reading configuration files, and collaborating with other developers. This tool also validates JSON syntax and highlights errors with line numbers.
Common Use Cases
- •Beautifying minified API responses for debugging
- •Validating JSON configuration files before deployment
- •Inspecting deeply nested JSON structures with tree view
- •Minifying JSON payloads to reduce bandwidth
- •Copying specific values from complex JSON objects
Frequently Asked Questions
What is the difference between JSON and JSONL?
JSON stores data as a single object or array, while JSONL (JSON Lines) stores one JSON object per line. JSONL is commonly used for log files and streaming data because each line can be parsed independently.
How do I validate JSON syntax?
Paste your JSON into the formatter — it will instantly highlight any syntax errors with line numbers and descriptions. Common errors include trailing commas, missing quotes around keys, and single quotes instead of double quotes.
Can I format JSON with different indentation levels?
Yes. This tool supports 2-space, 4-space, and tab indentation. You can also minify JSON to remove all whitespace for compact storage or transmission.