Diff of HTMLs

Unofficial diff viewer for WHATWG HTML Standard and W3C HTML.

There are number of differences between WHATWG HTML Standard and W3C HTML. The Diff of HTMLs provides side-by-side diff view of each section between the specifications.

All of diffs on the Diff of HTMLs are generated automatically from WHATWG HTML Standard</a> and W3C HTML. The Diff of HTMLs usually retrives specifications once a day (at around noon UTC) then calculates differences between the specifications.

This project is not affiliate with WHATWG nor W3C.