YAML ↔ JSON
YAML & JSON Converter
Convert between YAML and JSON instantly. Great for K8s and Docker Compose configs.
Convert between YAML and JSON instantly. Great for K8s and Docker Compose configs.
YAML (YAML Ain't Markup Language) and JSON are both popular data serialization formats. YAML is more human-readable and great for config files, while JSON is more common in APIs and data exchange. This tool lets you convert between YAML and JSON instantly, in both directions.
Converting Kubernetes config files between YAML and JSON. Working with CI/CD pipelines that use YAML configs. Migrating data between systems that use different formats. Learning YAML or JSON by seeing the equivalent in the other format.
Paste your YAML or JSON data into the input area. The tool automatically detects the input format. Click Convert to see the result in the other format. If your input has syntax errors, the tool will show you exactly where the problem is. You can copy the result with one click.
YAML is more human-readable, supports comments, and has features like anchors and multi-line strings. JSON is more compact, faster to parse, and has wider library support. YAML is great for config files, JSON is better for APIs and data exchange.
YAML specification mandates spaces for indentation. Tabs are not allowed because they can render differently across editors and systems, making the structure ambiguous. Most YAML errors come from mixing tabs and spaces.
Anchors (&) and aliases (*) let you reference the same data in multiple places without duplication. Define a value with &anchorName and reference it with *anchorName. This is very useful for DRY config files.
Use | (literal block scalar) to preserve newlines exactly as written. Use > (folded block scalar) to fold newlines into spaces. Both are useful for embedding long text like descriptions or scripts in config files.