YAML ↔ JSON Converter
Convert YAML to JSON and JSON to YAML online. Instant bidirectional conversion.
How to Use YAML ↔ JSON Converter
- 1Paste your YAML or JSON into the input editor.
- 2Select the conversion direction: YAML → JSON or JSON → YAML.
- 3The converted output appears instantly in the output panel.
- 4Click "Copy" to copy the result to your clipboard.
Frequently Asked Questions
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data serialisation format that uses indentation to represent structure. It is widely used for configuration files in tools like Docker Compose, Kubernetes, GitHub Actions, and Ansible.
What are the main differences between YAML and JSON?
YAML uses indentation instead of braces, supports comments, and allows multi-line strings natively. JSON is stricter, more widely supported in APIs, and easier for machines to parse. YAML is a superset of JSON, so valid JSON is also valid YAML.
When should I use YAML over JSON?
Use YAML for configuration files where human readability and comments are important (e.g. CI/CD pipelines, Kubernetes manifests). Use JSON for data interchange between services, APIs, and storage where strict parsing and broad tooling support matter.
Is my data sent to a server?
No. All conversions are performed entirely in your browser. No data is sent to any server.