JSON Formatter
Prettify, validate, and minify your JSON data instantly for better readability.
Raw JSON
Result
About JSON Formatter
The UtilDash JSON Formatter is an essential utility for developers working with APIs, web services, and configuration files. It transforms messy, minified JSON strings into perfectly indented, human-readable code. Beyond formatting, it serves as a powerful validation tool to help you identify syntax errors in your data.
Key Features
- Instantly convert minified JSON into a structured, readable format.
- Minification feature to reduce JSON payload size for production use.
- Real-time syntax validation with detailed error messages and positioning.
- Fully local processing ensures your sensitive data is never uploaded.
- High-performance handling for large JSON files.
How to use JSON Formatter?
- Paste your raw JSON string into the 'Raw JSON' input field.
- Click 'Prettify' to expand and indent the code for readability.
- Use 'Minify' if you want to remove all whitespace for compact storage.
- Copy the resulting JSON from the 'Result' box for your project.
FAQ
What does Prettify mean in JSON context?
Prettifying JSON involves adding line breaks and indentation (usually 2 or 4 spaces) to a minified JSON string so that humans can easily read and debug the structure.
Can this tool fix invalid JSON?
The tool will highlight where your JSON is invalid with an error message (e.g., missing commas or quotes). While it doesn't auto-fix structural errors, it makes them very easy to find.
Is there a limit to the JSON size?
There's no hard limit, but performance depends on your browser's memory. Most standard JSON payloads (up to several megabytes) will process instantly.
100% Privacy Guaranteed
All processing happens locally in your browser. We never see, store, or transmit your data. This tool is fully client-side and secure.