JSON to YAML
Transform JSON to YAML for configs and documentation. Directly in your browser.
JSON
YAML
- File size — up to 20 MB
- Input — valid JSON
- Nested objects and arrays are supported
About the JSON to YAML converter
YAML (YAML Ain't Markup Language) is a format for configuration files, appreciated for its readability. It is used by Docker Compose, Kubernetes, Ansible, GitHub Actions, CI/CD systems and many other tools. If you have a JSON config but need YAML — the conversion takes seconds.
Our converter transforms JSON to YAML directly in your browser. The file is not sent to the server — all processing happens on your device. This means your configs remain private and no one but you has access to them.
What the converter can do
- Nested structures: objects and arrays of any depth.
- Data types: strings, numbers, boolean, null, arrays, objects.
- String escaping: if a string contains special characters, it is quoted.
- Multiline strings: strings with line breaks become |- blocks.
- Indentation: 2 spaces, as is customary in most YAML files.
How to use
- Drop the JSON file, select it via the file browser, or paste the text manually.
- Click "Convert to YAML".
- Copy the result or download it as a data.yaml file.
Frequently asked questions
Where do my files go? Nowhere. The file is processed in the memory of your browser and disappears when you close the page.
Is there a limit on the number of conversions? No. You can convert as many times as you want.
How is YAML better than JSON? YAML is easier for humans to read, supports comments and does not require quotes for simple strings. But JSON parses faster and is more unambiguous.
Will the order of keys be preserved? Yes. The converter preserves the order of keys as in the source JSON.