Replix

Replix makes product demo videos from your code, so you never record your screen. Connect GitHub, pick a repo, and describe what the video should show. You get a polished video with pointer movement, auto zoom, voice-over, captions, and music. Want a change? Ask in plain English, and you get a new version. Export an MP4 in widescreen, vertical, or square. It runs in your browser and only reads your repos. Free while in beta.