Re:SingleFile: Save a complete web page into a single HTML file
by chefandy on Wednesday March 02, 2022 @04:01PM
(#30533084)
WARC is also used by the Webrecorder project. They made an app called Wabac which does entirely client-side WARC or HAR replays using service workers and it seems to have pretty good browser support, but I haven't really dug into the specifics.
https://github.com/webrecorder/wabac.js-1.0