JSON Formatter & Validator
Format, validate, and analyze JSON data with real-time error detection
JSON Input
How to Use
Paste your JSON data into the input area
Upload a .json file if you have one
Adjust formatting options (indentation, sorting)
Copy the formatted JSON or download as a file
Features
Real-time JSON validation with detailed error messages
Customizable indentation (2, 4, or 8 spaces)
Option to sort object keys alphabetically
Minify or beautify JSON with one click
Detailed JSON analysis and statistics
Support for large JSON files via upload
FAQ
What makes JSON invalid?
Common issues include missing quotes around keys, trailing commas, unescaped quotes, missing brackets/braces, and incorrect data types. Our validator shows exact error locations.
Should I sort my JSON keys?
Sorting keys can make JSON more readable and easier to compare, but it may change the original data structure. Only sort if key order doesn't matter for your use case.
What's the difference between minify and beautify?
Minify removes all unnecessary whitespace to reduce file size. Beautify adds proper indentation and line breaks for readability.
Can I format very large JSON files?
Yes, you can upload JSON files up to several MB. Large files may take a moment to process, but the formatter handles them efficiently.
About JSON
JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write. It's widely used in web APIs, configuration files, and data storage because of its simplicity and language independence.