Best YAML to JSON Converter Online

Free Handles all YAML types · Correct type inference · Syntax highlighted
Indent
Error
YAML
JSON
// JSON output

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Why This Is the Best YAML to JSON Converter

Full YAML Support

Handles all common YAML features: mappings, sequences, block and flow styles, anchors & aliases, multi-line strings, and comments.

Correct Type Inference

YAML booleans (true/false/yes/no), integers, floats, and null values are correctly mapped to their JSON equivalents.

Syntax Highlighted Output

JSON output is syntax-highlighted by key, value type, and structure, making it easy to inspect the converted result.

Download JSON

Export the converted result as a .json file for use in APIs, databases, or any JavaScript/TypeScript application.

Frequently Asked Questions

What is the difference between YAML and JSON?

YAML uses indentation and is more human-readable, commonly used for config files (Kubernetes, Docker, GitHub Actions). JSON uses braces and quotes, making it ideal for APIs and data exchange. Both can represent the same data structures.

Does this handle YAML anchors and aliases?

Yes. YAML anchors (&name) and aliases (*name) are fully resolved during conversion. The resulting JSON will contain the expanded, dereferenced values.

Are YAML comments preserved in JSON?

No. JSON does not support comments, so YAML comments (lines starting with #) are stripped during conversion. Only data values are transferred to the JSON output.

In-depth guide
YAML & TOML Config Guide
Kubernetes, Docker, Rust & Python configs
Read the guide