JSON to YAML
Convert JSON to YAML instantly. Clean 2-space indentation, preserves structure.
ConvertJSONYAMLFree to use
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Simple YAML to JSON
Convert a basic YAML configuration to JSON format.
name: John Doe age: 30 active: true
Nested YAML Structure
Handle complex nested YAML structures seamlessly.
user: name: Alice details: age: 25 email: [email protected]
YAML List to JSON Array
Transform YAML lists into JSON arrays effortlessly.
fruits: - apple - banana - cherry
JSON to YAML Conversion
Convert JSON data back to YAML format with ease.
{"title": "Sample", "tags": ["yaml", "json", "converter"]}
How to use
- Paste your JSON. Any valid JSON document.
- Copy the YAML. Clean YAML output.
Common use cases
- Converting JSON configs to Kubernetes YAML
- Moving from JSON API docs to YAML
- Prettier diff viewing in YAML form
Frequently asked questions
- What is YAML and when should I prefer it over JSON?
- YAML (YAML Ain\u2019t Markup Language) is a human-readable data serialization format that uses indentation rather than braces. Prefer YAML for config files that humans edit by hand (Kubernetes manifests, GitHub Actions, Docker Compose) and JSON for machine-to-machine APIs.
- How is the JSON converted to YAML?
- Objects become block mappings, arrays become block sequences, strings stay strings (with quoting only when YAML requires it), numbers and booleans are emitted as scalars. The output uses 2-space indentation, the YAML community default.
- Will the conversion preserve key order?
- Yes. YAML mappings keep the same key order as the input JSON object. JSON objects are technically unordered but in practice every modern parser preserves insertion order, so what you paste is what you get.
- How are nested arrays and deeply nested objects handled?
- They are emitted with progressively deeper indentation. Lists of objects produce the standard YAML pattern: a dash for each item, then the keys nested under it.
- Does this run in the browser?
- Yes. Conversion uses the js-yaml library locally; nothing is uploaded.
Related tools
How to use
- Paste your JSON. Any valid JSON document.
- Copy the YAML. Clean YAML output.
Common use cases
- Converting JSON configs to Kubernetes YAML
- Moving from JSON API docs to YAML
- Prettier diff viewing in YAML form
Frequently asked questions
- What is YAML and when should I prefer it over JSON?
- YAML (YAML Ain\u2019t Markup Language) is a human-readable data serialization format that uses indentation rather than braces. Prefer YAML for config files that humans edit by hand (Kubernetes manifests, GitHub Actions, Docker Compose) and JSON for machine-to-machine APIs.
- How is the JSON converted to YAML?
- Objects become block mappings, arrays become block sequences, strings stay strings (with quoting only when YAML requires it), numbers and booleans are emitted as scalars. The output uses 2-space indentation, the YAML community default.
- Will the conversion preserve key order?
- Yes. YAML mappings keep the same key order as the input JSON object. JSON objects are technically unordered but in practice every modern parser preserves insertion order, so what you paste is what you get.
- How are nested arrays and deeply nested objects handled?
- They are emitted with progressively deeper indentation. Lists of objects produce the standard YAML pattern: a dash for each item, then the keys nested under it.
- Does this run in the browser?
- Yes. Conversion uses the js-yaml library locally; nothing is uploaded.