Developer Tool
YAML to JSON / JSON to YAML Converter
Convert YAML to JSON or JSON to YAML instantly. Ideal for Docker Compose files, CI pipelines, Kubernetes and config files. Free, private, works offline.
How to use this yaml to json / json to yaml converter
- 1
Choose the direction: YAML → JSON or JSON → YAML.
- 2
Paste your document.
- 3
Click Convert and copy the result.
Frequently asked questions
▸What is YAML used for?
YAML is a human-friendly data format used for config files, Docker Compose, CI/CD pipelines (GitHub Actions, GitLab CI), and Kubernetes manifests.
▸Is the conversion lossless?
Data types such as numbers, booleans and nested lists are preserved in both directions, and indentation is normalized to a clean two spaces.
▸Does it validate my YAML?
Yes. If your YAML has an indentation or syntax error, the tool shows the exact error message from the parser.