JSON ↔ YAML converter
Switch between JSON and YAML formats in one click. Ideal for DevOps configs, API schemas, and any workflow where both formats are used.
About this tool
Convert JSON to YAML or YAML to JSON — paste your config, pick direction, get clean output instantly. Runs in your browser, no signup.
Switch between JSON and YAML formats in one click. Ideal for DevOps configs, API schemas, and any workflow where both formats are used.
- 1
Paste your JSON or YAML into the input field — the tool detects the format automatically.
- 2
The converted output appears instantly in the other format.
- 3
Use JSON→YAML for config files and YAML→JSON for APIs or data pipelines.
- 4
Click Copy to copy the result.
Convert JSON API schemas into YAML for OpenAPI / Swagger definitions.
Transform Kubernetes or Docker Compose YAML into JSON for programmatic processing.
Switch GitHub Actions workflow files between formats for easier editing.
JSON to YAML
{"name":"Alice","age":30,"tags":["admin","user"]}name: Alice
age: 30
tags:
- admin
- userYAML to JSON
name: Alice
age: 30{
"name": "Alice",
"age": 30
}These answers explain common json ↔ yaml tasks, expected input formats, and edge cases so both visitors and search engines can understand what this tool does.
Does this support multi-document YAML?
The converter handles single YAML documents. For multi-document YAML (separated by ---), only the first document is converted.
Are YAML anchors and aliases supported?
Basic YAML is fully supported. Complex anchors and aliases may be flattened during conversion.
Is the conversion lossy?
JSON→YAML is lossless. YAML→JSON drops comments (YAML supports comments, JSON does not) but preserves all data values.
What is the difference between JSON and YAML?
JSON uses braces and brackets with strict quoting rules and no comments. YAML uses indentation-based structure, supports comments, and is generally more human-readable for configuration files. Both represent the same data model of objects, arrays, strings, numbers, booleans, and null.
Can I convert a Docker Compose or Kubernetes config to JSON?
Yes. Paste your YAML config into the input and select YAML→JSON. The output is valid JSON that represents the same structure. This is useful when an API or tool requires JSON but your config is written in YAML.