Convert JSON to YAML and YAML to JSON instantly with our free online converter. Paste your code, click convert, and copy the result. No installation required. Works in any browser. Compare YAML vs JSON or learn how to convert with Python, JavaScript, or CLI tools.
Paste your JSON or YAML code into the input field on the left.
Press the Convert button to instantly transform your code.
Copy the converted output to clipboard or download as a file.
Click the "YAML → JSON" tab above to switch to the YAML to JSON converter.
Paste your YAML configuration or data into the input field.
Click Convert and copy or download your JSON output.
Need to convert YAML to JSON in your code? Check our Python guide or JavaScript guide for programmatic solutions.
| Feature | JSON | YAML |
|---|---|---|
| Readability | Medium | High |
| Syntax | Brackets/braces | Indentation |
| Comments | Not supported | Supported |
| Parsing Speed | Faster | Slower |
| Best For | APIs, data | Config files |
Instant conversion with no server round-trips. Everything runs in your browser.
Your data never leaves your browser. No uploads, no storage, no tracking.
Proper handling of nested objects, arrays, and special characters.
Fully responsive design works on desktop, tablet, and mobile devices.
JSON uses brackets and braces for structure, while YAML uses indentation. YAML is more human-readable and supports comments; JSON is faster to parse and more widely used in APIs. Both are data serialization formats used for configuration files and data exchange.
Yes, YAML 1.2 is a superset of JSON. Every valid JSON file is also valid YAML. This means you can use JSON syntax within YAML files and gradually migrate from JSON to YAML format when needed.
JSON is faster to parse and generate due to its simpler syntax. YAML's indentation-based structure requires more processing, making it slower for machine parsing. For high-performance applications, JSON is the better choice.
Yes, you can convert JSON to YAML automatically using this online converter, command-line tools like yq, or programming libraries in Python, JavaScript, Java, and other languages. Our tool provides instant, accurate conversion.
This free online JSON to YAML converter instantly transforms your JSON data into clean, properly formatted YAML. Other options include command-line tools (yq, jq), IDE extensions (VS Code), and programming libraries (PyYAML, js-yaml).
Yes, your data is 100% safe. All conversion happens locally in your browser using JavaScript. Your JSON and YAML data never leaves your device, is never uploaded to any server, and is not stored or logged anywhere.
Explore our comprehensive guides on JSON and YAML.