JSON ↔ YAML Converter
Convert between JSON and YAML formats instantly.
About This Tool
JSON and YAML are two popular data serialization formats. JSON is common in web APIs and JavaScript, while YAML is dominant in DevOps tools like Kubernetes, Helm, Docker Compose, and GitHub Actions. This tool converts between them while preserving data structure.
When to Use
- Converting a JSON API response into a YAML Kubernetes ConfigMap.
- Converting a YAML Helm chart values file to JSON for programmatic processing.
- Reading a YAML config file and understanding its JSON-equivalent structure.
Practical Examples
YAML AdvantageYAML supports comments (#), which JSON does not. Perfect for configuration files.
JSON AdvantageJSON is strict and unambiguous. YAML has MANY edge-cases (e.g., "yes" is parsed as boolean true).
Common Mistakes to Avoid
- YAML gotcha: 'no' and 'yes' are parsed as boolean false/true. Wrap in quotes: '"no"' if you mean the string.
- YAML is whitespace-sensitive. Inconsistent indentation causes parse errors.
Frequently Asked Questions
Q. Does YAML support all JSON features?A. Yes, JSON is actually a valid subset of YAML. Any valid JSON is also valid YAML.
Q. Are comments preserved during conversion?A. No. Comments are a YAML-only feature. When converting YAML→JSON, all comments are lost.