JSON ↔ YAML
Free online JSON to YAML converter. Convert between JSON and YAML formats instantly. All processing happens locally in your browser for maximum privacy.
How to Use JSON ↔ YAML
Paste Your Data
Copy your JSON or YAML data and paste it into the input panel. The tool accepts both formats.
Choose Conversion Direction
Click "JSON → YAML" to convert JSON to YAML format, or "YAML → JSON" to convert YAML to JSON format.
Copy the Result
The converted output appears instantly in the right panel. All processing happens locally in your browser.
Examples
JSON
{"name":"DevTools Hub","version":"1.0.0","active":true}YAML
name: DevTools Hub
version: 1.0.0
active: trueFrequently Asked Questions
What is the difference between JSON and YAML?
JSON (JavaScript Object Notation) uses braces, brackets, and quotes. YAML (YAML Ain't Markup Language) uses indentation and is more human-readable. YAML supports comments, while JSON does not. YAML is commonly used for configuration files (Docker, Kubernetes, Ansible), while JSON is the standard for APIs.
When should I use YAML instead of JSON?
Use YAML for configuration files, CI/CD pipelines, and any scenario where humans will read and write the data. Use JSON for APIs, data interchange between services, and when you need strict parsing. YAML is more error-prone due to its indentation sensitivity.
Can YAML do everything JSON can?
YAML is a superset of JSON — every valid JSON file is also valid YAML. YAML adds features like comments, anchors, and references. However, YAML's indentation-based syntax can cause subtle errors, which is why JSON remains preferred for programmatic data exchange.
Why does the YAML output look different from other YAML converters?
This tool performs a basic conversion that preserves the structure of your data. Complex YAML features like anchors, references, and multi-line strings are not supported in this converter. For production YAML, consider using a dedicated YAML library.
JSON vs YAML: When to Use Each
Both JSON and YAML are popular data serialization formats, but they serve different purposes. JSON is the universal language of web APIs, while YAML shines in DevOps and configuration management.
Comparison
- JSON — Strict syntax, no comments, great for APIs, universal support
- YAML — Human-readable, supports comments, indentation-based, great for config files