JSON Formatter
Format, validate, beautify, and minify JSON instantly. Paste, upload, or edit JSON below.
Input JSON
Output
{
"message": "Hello, world!",
"items": [
1,
2,
3
],
"nested": {
"a": true,
"b": null
}
}Tips for Working with JSON
- Ensure keys are quoted with double quotes and use valid types (string, number, boolean, null, array, object).
- Validate before sending data to APIs to avoid runtime errors.
- Minify for production to reduce payload size; beautify for debugging.
- Use meaningful key names and consistent casing.
Video Tutorial
JSON Formatting and Validation - Complete Developer Guide
Master JSON formatting, validation, and debugging techniques for better API development and data management.
JSON Formatting and Validation - Complete Developer Guide
Master JSON formatting, validation, and debugging techniques for better API development and data management.
📹 Video tutorial coming soon! We're creating high-quality video guides to help you get the most out of our tools. Stay tuned for updates.
What Our Users Say
Join thousands of satisfied users who trust Convertify for their file conversion needs
"Invaluable for debugging API responses! The syntax highlighting and error detection save me hours of work."
"Perfect for formatting messy JSON data. The validation feature catches errors I would have missed."
"Great tool for cleaning up JSON exports. Makes complex data structures much easier to read and understand."
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Frequently Asked Questions
Does it validate JSON?
Yes. Invalid JSON shows helpful error messages with position. Valid JSON can be pretty-printed or minified.
Can I upload files?
Paste JSON or upload `.json` files and we will display formatted output instantly.
Is there a size limit?
Large JSON files work in modern browsers. For very large payloads, consider chunking or streaming.
Will it change key order?
Standard pretty-print preserves key order. If you sort keys, the order may change.