JSON Beautifier
Format and prettify your JSON with proper indentation. Make messy JSON readable instantly.
JSON Formatter & Validator
Format, beautify, minify, and validate JSON. Find and fix JSON errors instantly with our free online tool.
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Why Use Our JSON Formatter?
JSON Minifier
Compress JSON by removing whitespace. Perfect for API requests and data transfer.
Error Detection
Find JSON errors with exact line numbers and helpful error messages. Fix issues quickly.
Statistics
View key count, value count, and file size. Get insights into your JSON structure.
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. JSON is widely used for API responses, configuration files, and data storage.
JSON Formatter Features
- Beautify: Add proper indentation and line breaks to make JSON readable
- Minify: Remove all whitespace to reduce file size
- Validate: Check if your JSON is valid and well-formed
- Error Highlighting: Show exact location of JSON errors
Common JSON Errors
- Missing commas: Forgetting to separate array elements or object properties
- Trailing commas: Extra comma after the last element
- Unquoted keys: Object keys must be in double quotes
- Single quotes: JSON requires double quotes for strings
- Unclosed brackets: Missing } or ] at the end
JSON vs JavaScript Objects
While JSON looks similar to JavaScript object literals, they are not the same. JSON strictly requires double quotes around string keys and does not allow trailing commas, comments, or functions. Our formatter ensures your JSON is valid and follows the proper syntax.