JSON ↔ YAML
Runs locallyConvert between JSON and YAML with live preview. Pick a direction, paste in, and copy the result.
JSON input
YAML output
YAML preview appears here.
Convert between JSON and YAML in both directions in your browser. Paste JSON to get readable YAML for your config files, or paste YAML to get strict JSON — ideal for Kubernetes, CI pipelines, and app configuration. No upload required.
How to convert JSON and YAML
- 1Paste JSON to convert to YAML, or YAML to convert to JSON.
- 2The converted output appears instantly, properly indented.
- 3Copy it into your config file or code.
YAML for config, JSON for code
YAML's indentation-based syntax is easier for humans to read and edit, which is why it dominates config files for tools like Kubernetes, GitHub Actions, and Docker Compose. JSON is stricter and better for machines and APIs. Converting between them lets you author in whichever is more comfortable.
Frequently asked questions
- How do I convert JSON to YAML?
- Paste your JSON into the converter and it returns equivalent, properly indented YAML. It also converts YAML back to JSON.
- Why use YAML instead of JSON?
- YAML is easier to read and edit by hand, supports comments, and is the standard for many config files. JSON is stricter and better suited to APIs and code.
- Is my data sent to a server?
- No. Conversion is done entirely in your browser.