HTML Escaping tool is a tool used to escape special HTML characters. It can convert special characters in an HTML string into corresponding entities to avoid syntax errors or security vulnerabilities in HTML.

Features:

1. Paste or input the HTML string that needs to be escaped into the tool.

2. The tool will automatically convert special characters in the HTML string into corresponding entities.

3. The escaped HTML string will be displayed in the output area of the tool.

Use cases:

1. Web development: In web development, developers often need to insert dynamically generated HTML strings into the page. Using HTML Escaping tool can avoid syntax errors or security vulnerabilities in HTML.

2. Email sending: When sending HTML emails, HTML strings need to be converted to plain text format. Using HTML Escaping tool can convert special characters in the HTML string into corresponding entities to avoid formatting errors in the email.

3. Database storage: When storing HTML strings in a database, special characters need to be converted into corresponding entities. Using HTML Escaping tool can easily perform the escape operation to avoid syntax errors or security vulnerabilities in the database.