webdiff displays side-by-side two-column diffs in the web browser.
It supports syntax highlighting, eliding & expansion of common lines.
It integrates with git.

Install via:

  pip install webdiff

Then run via one of these:

  git webdiff
  git webdiff <arguments>
  webdiff <left_dir> <right_dir>

See https://github.com/danvk/webdiff/ for more information.
