What does this tool do?
Paste JSON below to convert it into clean, indented YAML. Everything runs locally using JavaScript in your browser — nothing you paste or upload is ever sent to a server.
How to use this tool
- Paste your your json into the left-hand box.
- Click Convert to YAML.
- Copy the yaml output from the right-hand box.
Frequently asked questions
How is the YAML formatted?
With standard 2-space indentation and block-style mappings and sequences, matching the conventions used in most config files.
Can I use this for Kubernetes or Docker Compose files?
Yes — this is a common use case: write or generate configuration as JSON, then convert it to the YAML format those tools expect.
Are comments preserved?
JSON has no concept of comments, so the generated YAML won't include any — you can add comments afterward if needed.