Free YAML to JSON Converter

How to Convert YAML to JSON Online

Paste your YAML into the left panel and the JSON output appears instantly on the right. You can also drag and drop a .yaml or .yml file or use the upload button. Once converted, copy the JSON to your clipboard or download it as a .json file.

Common YAML to JSON Use Cases

Converting YAML to JSON is useful when you need to pass configuration data to REST APIs, validate YAML configs against JSON Schema, import Kubernetes or Docker Compose definitions into JSON-based tools, or debug YAML parsing issues by viewing the structured data as JSON.

Frequently Asked Questions

Why convert YAML to JSON?

JSON is the standard format for APIs, data interchange, and most programming languages. Converting YAML configs to JSON lets you use them in API requests, pass them to JSON-based tools, or validate them with JSON Schema.

Is this converter free?

Yes — completely free, forever. No sign-up, no account, no usage limits.

Is my data safe?

All conversion happens locally in your browser using JavaScript. Your YAML is never uploaded to any server. It's safe to use with sensitive or proprietary data.

Does it handle YAML comments?

YAML comments (lines starting with #) are stripped during conversion because JSON does not support comments. All data values are preserved.

Does it handle YAML anchors and aliases?

Yes — YAML anchors (&) and aliases (*) are resolved during parsing. The resulting JSON contains the fully expanded data without references.

Can I convert JSON back to YAML?

Yes — use the JSON to YAML converter to convert JSON back to YAML.