A free online YAML parser that converts YAML to JSON and displays it in a collapsible tree view, with syntax validation and error highlighting.
When to use
Users need a quick, browser-based way to parse YAML data, validate its syntax, and view it in a more readable JSON or tree format without installing software.
How to use
- 1Enter or paste YAML text into the input textarea, or click an example button to load sample YAML.
- 2Optionally, upload a YAML file by dragging and dropping it onto the input area.
- 3The tool automatically parses the YAML and displays the result in the output panel.
- 4Switch between JSON and Tree view using the segmented control.
- 5Adjust the JSON indentation (2 or 4 spaces) using the dropdown.
- 6Copy the output to the clipboard or download it as a file using the respective buttons.
Input & output
Input: YAML text (typed, pasted, or uploaded via drag-and-drop). Output: Parsed YAML displayed as formatted JSON or an interactive collapsible tree, with syntax validation status.
Who it's for
Developers, DevOps engineers, and anyone working with configuration files who needs to quickly parse, validate, or convert YAML to JSON.
FAQ
- Does this tool send my YAML data to a server?
- No, it is a pure front-end tool. All parsing happens locally in your browser, so your data never leaves your device.
- Can I upload a YAML file instead of typing?
- Yes, you can drag and drop a .yaml or .yml file onto the input area, and it will be loaded automatically.
- What happens if my YAML has syntax errors?
- The tool will display an error message with the specific problem, and the status bar will indicate a parse error.
- Can I change the indentation of the JSON output?
- Yes, use the dropdown next to the view toggle to select 2 or 4 spaces for JSON indentation.