common.dev
2026-03-15
DevTools Team
How to Format and Validate JSON Online
How to Format and Validate JSON Online
JSON (JavaScript Object Notation) is the most common data format used for APIs and configuration files. However, it can often become messy and hard to read, especially when minified.
Why Format JSON?
- Readability: Properly indented JSON is much easier to scan and understand.
- Debugging: Finding missing commas or brackets is easier in a formatted structure.
- Collaboration: Sharing clean data with teammates reduces friction.
Using our JSON Formatter
Our JSON Formatter tool allows you to:
- Prettify minified JSON
- Validate syntax in real-time
- Minify JSON for production use
Simply paste your JSON and the tool will handle the rest!