Threelane

Recording and editing multi-cam demos is fiddly, and every tool that makes it smooth is paid. Threelane is the open-source alternative: screen + webcam + your phone as a second camera over WiFi, multi-track editor with zoom lanes that follow your cursor and trim lanes that skip bad takes, portrait/landscape/square layouts, export to MP4. Runs locally no cloud, no account for Mac · Windows · Linux. Free forever.