JSON Formatter
Format, validate, and beautify JSON data. All processing happens locally in your browser.
What is JSON formatting?
JSON (JavaScript Object Notation) is the most widely used data interchange format on the web. APIs, configuration files, and databases all use JSON. But unformatted JSON (minified into a single line) is nearly impossible to read or debug.
Formatting adds line breaks and indentation, making JSON human-readable. Minifying removes whitespace, reducing file size for production.
Validation checks your JSON for syntax errors (missing commas, unclosed brackets, trailing commas) and shows the exact error location.
All processing is done client-side. Your JSON data never leaves your browser.