Dev
YAML ↔ JSON
Convert between YAML and JSON formats instantly.
How it works
A fast and reliable converter for transforming data between YAML and JSON formats. Essential for developers working with configuration files, APIs, and data serialization.
The tool supports bidirectional conversion - paste YAML to get formatted JSON, or paste JSON to get clean YAML output. Switch between modes with a simple toggle. The converter runs entirely in your browser, ensuring your data never leaves your device.
Real-time validation catches syntax errors immediately. If your YAML has indentation issues or your JSON is malformed, you'll see a clear error message explaining what went wrong and where. This saves time debugging configuration files and data payloads.
The auto-convert feature with 300ms debouncing provides instant feedback as you type. No need to click a button - just paste your data and watch the conversion happen. For large files, you can disable auto-convert and use the manual convert button instead.
The swap feature lets you quickly reverse the conversion direction. If you converted YAML to JSON but need to go back, just click swap - your output becomes the input and the mode toggles automatically.
Copy the result with one click or download as a file. The output is always properly formatted with consistent indentation. Perfect for DevOps engineers managing Kubernetes configs, developers working with REST APIs, and anyone who needs to convert between these ubiquitous data formats.
Use this tool to normalize configuration files, prepare API payloads, convert documentation examples, or migrate data between systems that use different formats.