A JavaScript library that generates pretty HTML diffs from git diff or unified diff output.
diff2html is a JavaScript library that converts raw diff output (like git diff or unified diff) into formatted, visually appealing HTML. It solves the problem of displaying code changes in a readable, web-friendly format, making it easier to review diffs in browsers, documentation, or web applications.
Developers building web-based code review tools, documentation generators, or any application that needs to display code differences in a user-friendly HTML interface.
Developers choose diff2html for its ease of integration, GitHub-like styling, and rich feature set including syntax highlighting and interactive UI components, all without requiring server-side processing.
Pretty diff to html javascript library (diff2html)
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Delivers a clean, familiar interface that mimics GitHub's diff viewer, reducing the learning curve for users and enhancing visual consistency.
Includes synchronized scrolling, collapsible file lists, and sticky headers out of the box, making code reviews more efficient and user-friendly.
Integrates seamlessly with highlight.js to automatically color-code syntax for over 180 languages, improving code readability without extra setup.
Supports both side-by-side and line-by-side layouts with configurable options, catering to different review workflows and preferences.
The library can struggle with large diffs or long lines, leading to out-of-memory errors or slow rendering, as explicitly admitted in the troubleshooting section.
Syntax highlighting relies on an external highlight.js dependency, which adds bundle size and requires additional configuration for custom languages or themes.
With multiple distributions (UI, slim, base) and numerous options, initial setup can be complex for developers seeking a quick, drop-in solution.