YAML ↔ JSON Converter
Convert JSON to YAML or YAML to JSON configurations instantly. Configure YAML indentation sizes, sort key maps alphabetically, customize spacing formats for output JSON files, download converted files, and troubleshoot structural parsing errors with exact line indicators in the browser and sandbox.
How to Convert YAML & JSON
- Input or upload your YAML code properties or structured JSON array.
- Adjust indentation padding variables or custom array mapping criteria.
- Verify structure, nested nodes, and properties in the compiler panels.
- Copy the newly rendered document or download it to your project folder.
Key Features
- Bidirectional parser: Transition smoothly between YAML configurations and JSON.
- Format error indicator: Highlights unaligned blocks, tab errors, or invalid strings.
- Nest Preservation: Accurately retains hierarchy across deep variables mapping.
Common Use Cases
- Convert server configs, CI/CD pipelines, or docker compose values to JSON.
- Integrate Kubernetes deployment settings, structures, or properties.
- Convert application manifest structures, resources, and configurations.
Frequently Asked Questions
Does this converter send my settings to a database?
No. All conversions, key arrangements, and formatting operations occur 100% inside your local web browser using client-side JavaScript libraries (js-yaml and JSON parser). Your configurations never leave your machine.
What is YAML and how does it compare to JSON?
YAML (YAML Ain't Markup Language) is a human-readable data serialization standard widely used for configuration files. Compared to JSON, it uses indentation and whitespace instead of brackets and columns, which makes it less verbose and easier for humans to read and write.
Can I sort keys automatically in both directions?
Yes. Enabling the "Sort Keys Alphabetically" checkbox will recursively sort map keys on objects before generating either YAML or JSON outputs, making payload comparison simple.