How to Round Webcam Corners in OBS Studio

Rounding the corners of your webcam feed is a great way to give your live streams or video recordings a clean, modern aesthetic. This guide will show you how to natively round your webcam borders in OBS Studio using the built-in Image Mask/Blend filter. By using a simple black-and-white mask image, you can easily soften sharp edges without needing any resource-heavy third-party plugins.

Step 1: Create or Download a Rounded Corner Mask

To round your webcam corners natively, OBS Studio requires a “mask” image. This is a simple image that tells OBS which parts of your webcam feed to show and which parts to hide.

  1. Create a canvas in any image editor (like Canva, Photoshop, or Photopea) that matches your webcam’s aspect ratio (typically 1920x1080 for 16:9).
  2. Draw a solid white rectangle with rounded corners in the center of the canvas.
  3. Fill the background (the outer corners) with solid black.
  4. Save this image to your computer as a PNG or JPEG.

(Note: OBS will keep whatever is covered by the white shape and hide whatever is covered by the black shape.)

Step 2: Apply the Filter in OBS Studio

Once your mask image is ready, you can apply it directly to your camera source in OBS.

  1. Open OBS Studio and locate your webcam in the Sources dock.
  2. Right-click on your webcam source and select Filters.
  3. In the Filters window, locate the Effect Filters section (the bottom-left box) and click the + (plus) icon.
  4. Select Image Mask/Blend from the list.
  5. Give the filter a name, such as “Webcam Rounded Corners,” and click OK.

Step 3: Configure the Mask Settings

Now, configure the filter to read your mask image.

  1. In the filter properties, click the Type dropdown menu and select Alpha Mask (Color Channel).
  2. Click the Browse button next to the Path field.
  3. Locate and select the black-and-white rounded rectangle mask image you created in Step 1.
  4. Click Open.

Your webcam feed will instantly snap to the rounded shape of your mask. You can click Close to exit the Filters window and position your newly styled webcam anywhere on your stream layout.