YAML ↔ JSON Converter
Convert YAML files to JSON or JSON files to YAML with our free online bidirectional converter. Syntax validation, formatting, and instant conversion for developers.
Formatting Options
Privacy First
All conversions are performed entirely in your browser. Your YAML and JSON data never leaves your device.
YAML to JSON & JSON to YAML Conversion
YAML → JSON
Convert YAML configuration files to JSON format for use with APIs, databases, and JavaScript applications. Perfect for migrating configs and data serialization.
JSON → YAML
Convert JSON data to human-readable YAML format for configuration files, Docker Compose, Kubernetes, and CI/CD pipelines.
Key Features
Syntax Validation
Automatic validation of YAML and JSON syntax with detailed error messages for debugging.
Pretty Formatting
Output is automatically formatted with proper indentation for maximum readability.
Instant Conversion
Client-side processing ensures instant conversion with complete privacy - your data never leaves your browser.
Copy & Download
Easily copy converted output to clipboard or download as a file for immediate use.
YAML vs JSON Comparison
| Feature | YAML | JSON |
|---|---|---|
| Readability | Very human-readable | Structured, less verbose |
| Comments | Supports comments (#) | No comment support |
| Parsing Speed | Slower | Very fast |
| Best Use | Config files, Kubernetes | APIs, data exchange |