dfoverdx/htmldiff-js

This JavaScript library provides a port of the HtmlDiff algorithm to generate HTML diffs by marking insertions with `<ins>` and deletions with `<del>` tags, making it easy to visualize changes between two HTML blocks. It's particularly useful for developers building web applications that need to display side-by-side comparisons of HTML content, such as collaborative editing tools or version control interfaces. The library maintains styling for "special tags" like `<em>` and `<strong>` when marking modifications, though users should be aware the diffing algorithm isn't perfect and may produce unexpected results in certain edge cases.