Matt Acton has shared 1 tiny tool here, mostly around chrome, extension, and video. The tools span JavaScript.https://www.tinytooltown.com/en-ushttps://www.tinytooltown.com/tools/dual-video-sync/https://www.tinytooltown.com/tools/dual-video-sync/A Chrome extension that syncs two browser-based video players By Matt Acton (@mattacton) Language: JavaScript License: MIT GitHub: https://github.com/mattacton/dual-video-syncSat, 14 Feb 2026 00:00:00 GMTchromeextensionvideo