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Effortlessly convert your YAML files or text into clean, well-structured JSON. Our tool is perfect for developers working with configuration files or API data. It includes a built-in validator to catch syntax errors before conversion and allows you to format the JSON output as either human-readable (pretty) or compact (minified). Because all processing happens securely in your browser, your data remains completely private.
YAML (YAML Ain't Markup Language) is a human-readable data serialization standard that's commonly used for configuration files and data exchange.
Convert YAML config files to JSON for applications that require JSON format
Transform YAML data to JSON for REST API consumption
Migrate data from YAML-based systems to JSON-based systems
| Feature | YAML | JSON |
|---|---|---|
| Readability | High (human-friendly) | Medium (structured) |
| Comments | Supported | Not supported |
| File Size | Larger (more verbose) | Smaller (compact) |
| Parsing Speed | Slower | Faster |
| Use Case | Configuration, documentation | APIs, data exchange |
Paste your YAML into the input panel, click Convert to JSON, and copy or download the generated JSON. No signup or installation required.
It reads YAML input and outputs an equivalent JSON representation of the same data.
To integrate with systems, APIs, or tools that require JSON, or to standardize data formats across services.
Aliases are resolved to normal values in JSON (references become duplicates). Cyclic references cannot be represented and will cause an error.
Scalars map to JSON strings, numbers, booleans, or null; sequences map to arrays; mappings map to objects.