How to Blur Your Webcam Background in OBS

The short answer

OBS Studio can blur the background behind you on a webcam, but a standard install has no filter that detects where you end and the room begins. Its built-in filters can blur, crop or color-key a whole image. They cannot separate a person from the background. To get a true background blur you add a background-segmentation plugin, or you use a background effect supplied by your graphics hardware maker if your system supports one. You then apply that filter to your webcam source and send the result to your call app through the OBS Virtual Camera.

Which steps you need depends on your goal. If you only want a blurred background in one video-call app, check that app's own background settings first. Many call apps include a blur option, and it may save you the setup. Use OBS when you want the same blurred, composed feed in several apps, or when you want control the call app doesn't offer.

Three ways to get a blurred background through OBS

Approach | What it needs | What it actually does

Background-segmentation plugin | A third-party OBS plugin compatible with your OBS version and operating system | Estimates which pixels belong to you and blurs the rest, frame by frame, as a virtual effect

GPU maker's background effect | Supported graphics hardware and the vendor's effects software installed | Same idea as a plugin, but processing runs through the vendor's software on supported hardware only

Physical green screen plus chroma key | A real, evenly lit green or blue backdrop and a blurred photo of your choice | OBS removes the colored backdrop and places your chosen image behind you. The blur comes from the photo you supply, not from your real room

Keep the difference between these in mind. A plugin or GPU effect blurs your real room as a virtual effect. The green-screen method replaces your physical background with an image, and that image can be a photo you blurred beforehand in an editor. No performance figures, accuracy comparisons or version-compatibility details were available for this guide. Check each plugin's or vendor's own documentation for current requirements.

Step-by-step: blur the background with a plugin

• 1. Close any other app that is using your webcam. On many systems only one program can hold a physical camera at a time.
• 2. In OBS, add your camera to a scene: in the Sources panel choose the add (+) button, pick Video Capture Device, and select your webcam.
• 3. Confirm the camera works on its own before adding effects. You should see live, moving video in the OBS preview.
• 4. Download a background-removal or background-blur plugin from its official source. Make sure it supports your OBS version and your operating system, install it, then restart OBS.
• 5. Right-click the webcam source, open Filters, and add the plugin's filter from the effect-filters list.
• 6. In the filter settings, choose the blur mode rather than full removal or replacement, if the plugin offers both.
• 7. Adjust the available controls. Names vary by plugin, but these commonly include blur strength, a detection threshold, and edge smoothing.
• 8. Watch the preview while you move. Turn your head, raise a hand, and lean in and out to see how the edges behave.

If the outline around your head or shoulders flickers, try smoothing the edges or adjusting the threshold. Brighter, more even lighting on your face and a background that contrasts with your clothing usually help segmentation tools tell you apart from the room. Hair, glasses, headphones and fast hand movements are common trouble spots for this kind of effect.

Step-by-step: the green-screen alternative

• 1. Hang a smooth green or blue backdrop behind you and light it evenly so it has no strong shadows or wrinkles.
• 2. Add your webcam as a Video Capture Device source in OBS.
• 3. Right-click the source, open Filters, and add Chroma Key from the effect filters. Select the key color that matches your backdrop.
• 4. Adjust similarity and smoothness until the backdrop disappears without eating into your hair or clothing.
• 5. Add an Image source containing a blurred photo, and move it below the webcam source in the Sources list so it sits behind you.

Avoid wearing anything the same color as the backdrop, because the key will remove it too. OBS also has a Color Key filter, but Chroma Key is the one usually used for green and blue screens.

Send the blurred feed to Zoom, Teams, Meet or another app

OBS doesn't change your physical webcam. It creates a separate virtual camera that other apps can select like a normal camera. Your blurred background only appears in a call if the call app is set to use that virtual camera.

• 1. In OBS, select the scene that contains your filtered webcam.
• 2. In the Controls area, click Start Virtual Camera. Recent versions also let you choose what the virtual camera outputs, such as the full program, a specific scene or a single source.
• 3. Open your call app or browser, go to its video or camera settings, and select OBS Virtual Camera instead of your physical webcam.
• 4. Turn off the call app's own background blur or replacement, so it doesn't stack a second effect on top of the OBS one.
• 5. Keep OBS open and the virtual camera running for the whole call.

In a browser-based call, the browser asks for camera permission and then lists available cameras. Grant permission, then pick OBS Virtual Camera from the camera menu in the call or site settings. On macOS, both OBS and the call app may need camera access approved in System Settings under Privacy & Security, and recent macOS versions may ask you to approve the OBS virtual camera extension the first time you start it.

How to check that it actually worked

Verify three separate things. Getting one right doesn't guarantee the others.

• Camera access: the call app lists OBS Virtual Camera and lets you select it without a permission error.
• Video capture: the self-view shows live, moving video from OBS. A frozen image, an OBS logo or a black frame means the feed isn't arriving.
• Result quality: the background is blurred, your outline holds steady when you move, and the motion looks smooth. A short test recording or a test call with someone else shows what others will see more reliably than your own preview.

Your self-view may look mirrored. Many call apps flip only your local preview, so text behind you or on your shirt may still read correctly to other participants. Check the app's mirroring setting before adjusting anything in OBS.

Common problems and what to try

• OBS Virtual Camera doesn't appear in the call app: start the virtual camera in OBS first, then fully restart the call app or reload the browser tab so it rescans for cameras.
• Black screen in the call: confirm the virtual camera is running and that the scene it outputs contains your webcam. Then check the call app's camera permission.
• Webcam shows as busy or unavailable in OBS: another app is likely holding it. Close other video apps and choose the physical camera only inside OBS.
• Blur filter missing from the Filters list: the plugin may not match your OBS version or system, or OBS wasn't restarted after installing it.
• Video stutters or the computer slows down: real-time segmentation uses significant processing power. Try a lower camera resolution or frame rate in the source properties, close other heavy apps, or try a GPU-accelerated option if your hardware supports one.
• Background looks doubly processed or edges look strange: turn off the call app's own blur or background effect.

What this guide couldn't confirm

No tested results, specific plugin versions, hardware requirements or performance measurements were available, so this guide doesn't recommend a particular plugin or promise a level of quality. Menu names and settings can differ between OBS versions, operating systems and plugins. Treat each plugin's own documentation as the authority on compatibility and options, and run a test call before relying on the setup for an important meeting.