Excalicast vs screen recording: why operation-stream capture wins for whiteboards
Traditional screen recording (getDisplayMedia / OS screen capture) records whatever is painted on screen, so an overlapping window, a minimized browser, or a tab switch ends up in the video. Excalicast instead records the whiteboard operation stream and re-renders frames offscreen, so the exported video always shows clean whiteboard content regardless of what is in front of it.
Feature comparison
| Excalicast | Screen recording | |
|---|---|---|
| What gets recorded | Whiteboard content only | Everything on screen |
| Overlapping window / notification | Not captured | Captured into the video |
| Re-frame to another ratio later | Re-render at any ratio | Locked to capture resolution |
| Privacy | Renders locally, no upload | Varies by tool |
Which to choose
For recording app demos across many windows, a screen recorder is the right tool. For whiteboard and diagram explainers, operation-stream capture is strictly better: occlusion-proof, re-framable to any aspect ratio, and private by default.
FAQ
Will switching tabs ruin my whiteboard recording?
No. Because Excalicast records the operation stream rather than screen pixels, switching tabs or covering the window does not appear in the exported video, and microphone audio keeps recording.