About this tool
Paste or load YAML to explore the structure as a tree, edit the content, format, and download. Useful for modern application configs (Docker, CI/CD, infrastructure), manifest inspection, conversions to other formats, or simply understanding the hierarchy of a large YAML file.
How to use
- Paste YAML or load a file.
- See the structure as a navigable tree.
- Edit the content if needed, with live validation.
- Format and download the result.
Frequently asked questions
- What's YAML's advantage over JSON?
- Readability. YAML uses indentation instead of braces and brackets, allows comments (with #), and has cleaner syntax for lists and objects. It's preferred for manually edited configuration files. JSON is better for data exchange between machines and APIs.
- Why is YAML so sensitive to indentation?
- In YAML, structure is defined by indentation, not delimiters. Mixing tabs with spaces, or inconsistent indentation, breaks the structure. The rule is to always use spaces (most tools convert tabs automatically) and maintain consistency.
- Does YAML support complex types?
- It supports unlimited nested lists and objects, and primitive types (strings, numbers, booleans, null). There are also advanced types (dates, sets, references between nodes) but they aren't used in most files. For all practical purposes, YAML covers what JSON covers, with different syntax.