Snap Camera is a free application developed by Snap Inc. (the creators of Snapchat) that lets you use Snapchat Lenses and filters with other video conferencing and streaming applications on your Mac (and Windows PC). Instead of using Snapchat directly, you can select a Lens or filter in Snap Camera, and then that effect will appear when you use your webcam in apps like Zoom, Skype, OBS Studio, and more. Essentially, it acts as a fun and customizable virtual webcam.