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How to use face swap on a WhatsApp video call

CyberCat Cam runs the face swap inside your web browser. WhatsApp cannot read a browser tab directly. OBS Virtual Camera can bridge the clean output only when your exact WhatsApp Desktop client lists that camera; some versions do not support it.

What you need

A computer (Windows or Mac) with a webcam, the WhatsApp Desktop app, the free OBS Studio app, a CyberCat Cam account with credits, and a clear front-facing photo of the face you want to wear (.jpg, .png or .webp).

Steps

  1. Sign in and open the Dashboard. Upload your face photo in the face swap panel — you will see a preview before going live.
  2. Press Go Live and allow camera access. Live time costs 1 credit per minute; unused reserved credits are refunded when you stop.
  3. Turn on Clean output so only the swapped video is shown, without app labels.
  4. In OBS Studio, add Window Capture or Display Capture for your existing clean-output window. Crop out private controls, then click Start Virtual Camera. An OBS Browser source is a separate session and is not your existing live studio.
  5. Check the camera selector in your exact WhatsApp Desktop call. Select OBS Virtual Camera only if listed. If absent, transformed camera calls are unavailable in that client; use another supported call app instead.
  6. Route changed browser Monitor audio through a configured virtual audio cable and select its output in WhatsApp's microphone selector if offered. Virtual Camera does not carry audio. Use headphones.
  7. Talk normally. Your real mouth stays visible through the swapped face, so lip movement matches what you say.

Tips for a better result

Face the camera with even light. Use a sharp, front-facing photo with the mouth closed. Close other heavy apps — the swap uses your computer's graphics chip.

Honest limits

  • WhatsApp on phones cannot receive desktop virtual cameras. Desktop compatibility varies by client/version; no WhatsApp recipient call was verified here.
  • The swap is landmark-based (it bends your photo over your tracked face), not a trained deep-fake model. Wide head turns and fast movement can make edges trail slightly.
  • Frame rate depends on your device. In our software-only test it ran around 17–19 FPS; computers with a graphics chip do better. We cannot promise zero lag on every device.
  • WhatsApp compresses video, so the other person usually sees lower quality than your Full HD output.

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