JSON↔YAML
Convert formats
JSON ↔ YAML Converter
Convert between JSON and YAML.
How to use ▸▾
Paste JSON or YAML on the left, click the convert button, result appears on the right.
Supports nested objects, arrays, strings, numbers, booleans, and null.
How to use the JSON↔YAML tool
JSON and YAML are the two most common data formats in modern infrastructure and DevOps work. JSON is used by APIs and databases, while YAML is preferred for configuration files in Docker Compose, Ansible, and Kubernetes. This converter transforms data between the two formats losslessly, handling nested objects, arrays, booleans, numbers, and null values.
- 1 Paste JSON or YAML into the input area.
- 2 Click JSON → YAML or YAML → JSON to convert.
- 3 Use the sample buttons to load a realistic example and see how the conversion works.
- 4 Copy the result from the output area and use Clear to start over.
Example: JSON → YAML
{
"name": "DoWithSudo",
"services": ["web", "db", "cache"],
"ssl": true
} name: DoWithSudo services: - web - db - cache ssl: true
JSON↔YAML FAQ
Why convert between JSON and YAML?
Many tools only accept one format. For example, an API may require JSON while your Docker Compose or Ansible files are written in YAML. Converting keeps the data identical while changing the syntax.
Is JSON or YAML better for configuration?
YAML is more human-readable and supports comments, which makes it popular for config files. JSON is stricter and universally supported, which makes it better for data interchange between systems.
Does the converter support nested objects and arrays?
Yes. Nested objects, arrays of objects, strings, numbers, booleans, and null values are all preserved in both directions.
Can YAML use tabs for indentation?
No. YAML requires spaces, and most linters recommend two spaces per level. Tabs cause parse errors in most YAML parsers, including the ones used by Docker Compose and Ansible.
