Automatic zoom and smooth cursor tracking for your screen recordings. Free alternative to Screen Studio.
Camera movement uses real spring simulation — the same math as iOS animations. No linear lerp, no easing curves. Just natural, physical motion.
Detects when your cursor enters a text block or a wide table and adjusts zoom to show the full element. Keeps context visible without you doing anything.
Export to WebM with hardware-accelerated encoding. 60fps, Retina resolution, 20Mbps bitrate. What you see in preview is what you get.
Real data from our rendering engine. Every frame is computed with spring physics — the cursor moves, the camera follows with natural inertia and overshoot.
Bring your existing screenstudio projects into a cleaner workflow. Review edits, organize versions, and export final videos in just a few clicks.
Use any screen recorder. ScreenGrub captures the mouse trajectory separately — every move, click, and scroll — with sub-pixel precision at 60fps.
The spring-physics engine computes camera movement in real time. See the result instantly. Tweak zoom, padding, cursor style, and background.
One click. The renderer walks through every frame, applies the physics, and writes out a clean video. Done in seconds.