YAML to JSON Converter
Paste any YAML document to convert it into formatted JSON.
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Why convert YAML to JSON?
YAML is popular for config files — Kubernetes manifests, Docker Compose, CI pipelines, OpenAPI specs — because it's easier for humans to read and write than JSON. But most programming languages and APIs work with JSON natively, so you'll often need to convert one to the other: to debug a config value, feed it into a script, or paste it into a tool that only accepts JSON.
This converter runs entirely in your browser. Nothing you paste is uploaded anywhere, which makes it safe to use even with config files that contain internal service names or environment-specific values.
Frequently asked questions
- Does this support multi-document YAML?
- This tool converts a single YAML document at a time. If your file uses --- separators for multiple documents, convert one section at a time.
- What happens if my YAML has a syntax error?
- You'll see the parser's error message, including roughly where the problem is, so you can fix indentation or formatting issues.
- Are comments preserved?
- No — JSON has no concept of comments, so any # comments in your YAML are dropped during conversion, same as with any YAML-to-JSON converter.