YAML to Crystal Class Tool is a tool that converts YAML data into Crystal class. It uses js-yaml library to parse YAML data and then converts it into JSON format. Finally, it uses the $he3.jsonToOther() method to convert the JSON data into Crystal class.

Features:

1. Converts YAML data into Crystal class.

2. Automatically detects input YAML data and converts it into Crystal class.

3. Provides sample YAML data for testing.

4. Provides auto-fill input condition for detecting YAML data.

Usage:

1. Copy or input YAML data into the tool.

2. The tool will automatically detect the input YAML data and convert it into Crystal class.

3. The converted Crystal class will be displayed in the output area.

Use cases:

1. API development and testing: Developers often need to view the returned YAML data when developing or testing APIs. Using the YAML to Crystal Class Tool, they can easily convert the YAML data into Crystal class, making it easier to check the data structure and content.

2. Data analysis: Data analysts need to process and analyze various YAML data. Using this tool, they can easily convert YAML data into Crystal class, which helps them better understand the data structure and content.

3. Code review: During code review, reviewers can use the YAML to Crystal Class Tool to convert YAML data into Crystal class, making it easier to view and understand the data structure.