How to Blur an Image in OBS: Privacy and Style for Your Stream

Whether you’re a professional streamer or just jumping on a Zoom call via OBS, there are plenty of reasons you might need to blur something out. Maybe there is a messy room behind you, or perhaps you need to hide sensitive information like an email address or a private chat window during a live broadcast.

While OBS (Open Broadcaster Software) is incredibly powerful, it doesn’t actually have a “Blur” button right out of the box. You usually have to get a little creative with plugins or pre-edited assets.

In this guide, we will break down the best ways to get that blur effect in OBS and show you a faster, “no-install” way to prep your graphics.

1. The Plugin Method: StreamFX

The most common way to blur a source in OBS is by using a plugin called StreamFX.

1. Download & Install: Search for the StreamFX plugin and install it for your version of OBS.
2. Add Filter: Right-click on your Source (the image or camera you want to blur) and select Filters.
3. Apply Blur: Click the + icon, choose Blur, and then adjust the settings. You can choose between different types like Gaussian or Box blur to get the look just right.

2. The “Scaling” Workaround (No Plugin)

If you don’t want to mess with plugins, you can use this “hack” to create a soft, pixelated blur:

1. Right-click your source and go to Symmetry/Scaling.
2. Set the Scale Filtering to Point.
3. Shrink the image down very small, then stretch it back up to fill the screen. It will look blocky and blurred, which works in a pinch for privacy!

The Pro-Streamer’s Secret: Pre-Blurred Assets

Let’s be real: adding filters and plugins to OBS can eat up your CPU and GPU power, which might cause your game to lag. Most professional streamers prefer to “pre-blur” their overlays, background images, and sensitive graphics before they even bring them into OBS.

This is where Edit The Image.com becomes your best friend. It’s a massive suite of over 260 tools that are 100% private. Since the processing happens directly in your browser, your images are never uploaded to a server—perfect for redacting sensitive documents before showing them on stream.

Pro Tips for Blurring in OBS

• Mind the Edges: If you are blurring a webcam or a specific source, use a Radial Blur Tool to keep the center sharp while the edges go soft. It keeps the viewer’s eye on you!
• Safety First: If you are blurring a screenshot to hide a password or address, don’t rely on “pixelation.” Hackers can sometimes reverse-engineer pixelated text. Using a dedicated Photo Blur Tool is a much safer way to obscure data.
• No Signup Required: One of the best things about using web-based tools for your stream assets is that you don’t need a subscription. You can just hop on, blur your file, and drag it into OBS in seconds.

FAQ: Blurring for Streamers

Does OBS have a native blur filter?

No. Standard OBS does not include a blur filter by default. You must either use a plugin like StreamFX or use a photo blur tool to edit the image before adding it to your scene.

How do I blur my webcam background in OBS?

The easiest way is to use a “Virtual Background” software (like NVIDIA Broadcast) before bringing the feed into OBS. Alternatively, you can use the StreamFX plugin to apply a blur filter to your camera source directly.

Is it better to blur in OBS or pre-edit the image?

Pre-editing is usually better for performance. Applying filters in real-time takes up system resources. Using a Gaussian blur tool to prepare your background images ensures your PC stays focused on the game.

Can I blur just a specific part of a window in OBS?

Yes, but you have to use a “Mask.” You create a black-and-white image where the white part is what you want to keep sharp and the black part is what you want to blur. It’s a bit technical, so most people prefer to just redact the image using a sensitive content blurrer beforehand.