CSON to JSON Converter
Convert CSON (CoffeeScript Object Notation) to standard JSON format. Perfect for migrating Atom editor configs, modernizing legacy CSON files, and ensuring compatibility with JSON-only systems. Handles comments, optional commas, and flexible syntax.
Recommended Settings
Best Practices
- •Use consistent indentation (spaces or tabs, not mixed)
- •Be aware that comments will be stripped in JSON output
- •Test converted JSON in your target system
CSON Features
- •Supports # for comments (will be removed in JSON)
- •Optional commas between array/object elements
- •Optional braces for objects with proper indentation
Pro Tips
- •CSON is whitespace-sensitive - indentation matters!
- •All valid JSON is also valid CSON
- •All processing happens client-side for privacy
Most Popular
Most users prefer 2-space indentation for readability
When to Use This Tool
Convert Atom editor configuration files to JSON for use with modern editors like VS Code. Perfect for developers migrating their development environment setup while preserving all settings and preferences.
Recommended: Editor Migration
Transform legacy CSON configuration files into standard JSON format for broader compatibility. Useful when integrating with systems that require JSON-formatted config files or modern build tools.
Recommended: Legacy Migration
Convert CSON-based configuration into JSON for CI/CD pipelines and build tools that expect JSON input. Ensures compatibility with modern DevOps workflows and automation systems.
Recommended: DevOps
How It Works
Paste your CSON data in the input field
Choose your preferred JSON indentation
Click 'Convert to JSON' to process
Copy or download the resulting JSON
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Client-side JavaScript with custom CSON parser for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is CSON and how does it differ from JSON?
CSON (CoffeeScript Object Notation) is a more human-friendly format based on CoffeeScript syntax. It allows optional commas and braces, supports comments with #, and uses indentation like Python. It's essentially JSON with a cleaner, more readable syntax.
Will comments be preserved in the conversion?
No, CSON comments (marked with #) will be stripped during conversion to JSON since JSON doesn't support comments. The data structure will be preserved, but any documentation in comments will be lost.
What happens if my CSON has indentation errors?
The parser will throw an error if indentation is incorrect, as CSON is whitespace-sensitive like Python. Make sure to use consistent indentation (either spaces or tabs, not mixed) throughout your CSON file.
Can I convert very large CSON files?
Yes, but very large files (>5MB) may slow down your browser since all processing happens client-side. For extremely large files, consider using a command-line tool. The benefit is complete privacy - your data never leaves your browser.
Is my data kept private?
Absolutely! All CSON to JSON conversion happens entirely in your browser using client-side JavaScript. Your configuration files and data are never sent to any server, ensuring complete privacy and security.