Compare YAML File and YAML Ain't Markup Language formats — understand the key differences and when to use each
YAML File
YAML File (.yml) is a data file format.
YAML Ain't Markup Language
YAML (YAML Ain't Markup Language) is a human-friendly data serialization format commonly used for configuration files. It uses indentation for structure rather than brackets or tags, making it highly readable. YAML is the standard configuration format for Docker Compose, Kubernetes, Ansible, GitHub Actions, CI/CD pipelines, and many modern development tools. It supports scalars, sequences, mappings, anchors, aliases, and multi-line strings.
| Feature | YML | YAML |
|---|---|---|
| Full Name | YAML File | YAML Ain't Markup Language |
| File Extension | .yml | .yaml |
| Category | data | data |
| Free to Convert | ✓ Yes | ✓ Yes |
| Browser Support | ✓ All Browsers | ✓ All Browsers |
| Convert to Each Other | ✓ Yes | ✓ Yes |
或将文件拖放到此处
最大文件大小：2GB