JSON to YAML Converter Online
Convert between JSON and YAML formats instantly in your browser.
Processed locally in your browserJSON
Drag & drop a file here, or
Max 5MB
YAML
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Batch processing, no ads, higher limits, and API access.
Features
- ✓Bidirectional JSON to YAML conversion
- ✓Real-time conversion as you type
- ✓Customizable indentation (2 or 4 spaces)
- ✓File upload and download support
- ✓Detailed error messages with position
Frequently Asked Questions
- How do I convert JSON to YAML?
- Paste your JSON into the left panel and the YAML output appears instantly on the right. You can also upload a .json file using the file upload button. The conversion happens in real-time as you type.
- Can I convert YAML back to JSON?
- Yes! Click the swap button (↔) to switch to YAML to JSON mode. The tool supports bidirectional conversion — paste YAML on the left and get formatted JSON on the right.
- What is the difference between JSON and YAML?
- JSON uses braces {} and brackets [] with quoted keys, while YAML uses indentation-based formatting that is more human-readable. YAML supports comments and multi-line strings natively, which JSON does not. Both can represent the same data structures.
- Is my data safe when converting?
- Yes, all conversion happens entirely in your browser using JavaScript. No data is sent to any server. Your JSON and YAML content never leaves your device.
- What indentation should I use for YAML?
- The most common YAML indentation is 2 spaces, which is the default in most tools and CI/CD systems like GitHub Actions. 4 spaces is also popular for better readability. Use the indent selector to choose your preference.