The NEW KING of Face Swappers! Reactor Tutorial. Roop is dead.

Sebastian Kamph
16 Oct 202308:00

TLDRThe video introduces Reactor as a superior face-swapping tool over RP, highlighting its high-resolution capabilities, compatibility with CPUs, and support for uncensored content. The tutorial walks viewers through the installation process of Reactor and Visual Studio 2022, and demonstrates various techniques for face swapping using Reactor within Stable Diffusion, including swapping faces with previous images and multiple characters. The video also touches on the use of upscaling and restoring facial features for enhanced results.


  • ๐Ÿ˜€ The 'Reactor' extension offers high-resolution face swaps with upscaling, compatible with CPU-only systems, making it superior to the now-discontinued 'RP'.
  • ๐Ÿ‘จโ€๐Ÿ’ป 'Reactor' supports both SDXL and 1.5 models, automatically detects the gender and age of characters, is uncensored, and is still under development.
  • ๐Ÿ”ฎ Installation requires Stable Diffusion, the Reactor extension, and Visual Studio 2022, with detailed steps provided for different user setups.
  • ๐Ÿ™‹โ€โ™€โ€ The demonstration includes a face swap between a contemporary woman's image and the Mona Lisa, showcasing Reactor's capabilities.
  • ๐Ÿ’ป For Windows users, two installation paths are offered for Visual Studio: a complete package or just the C++ build tools for a lighter version.
  • ๐Ÿ‘จโ€๐Ÿ’ปโ€๐Ÿ’ป The setup process for Reactor is streamlined, involving copying a link into Stable Diffusion's extension installation UI.
  • ๐Ÿ‘ค Reactor's interface in Stable Diffusion allows for easy application of face swaps to previous images or new creations via image-to-image or text-to-image techniques.
  • ๐Ÿ›๏ธ Demonstrates multiple face swap examples, including changing the faces of individuals in group photos and swapping faces in generated images.
  • ๐Ÿ’โ€โ™‚โ€ Reactor can handle multiple characters in an input image, assigning them index numbers for targeted face swaps.
  • ๐Ÿ“ธ Additional features like upscaling and the use of 'restore faces' with Reactor improve the final image quality, offering flexibility in the editing workflow.

Q & A

  • What is the main topic of the video?

    -The main topic of the video is about demonstrating how to use a face-swapping tool called Reactor, which is an improvement over the previously popular tool, RP.

  • What are some advantages of Reactor over RP?

    -Reactor offers high-resolution face swaps, works well with CPUs without the need for a powerful GPU, supports both SDXL and 1.5 models, is uncensored, and is still in development.

  • What is the first step in using Reactor for face swapping?

    -The first step is to install Stable Diffusion if not already installed, which is a prerequisite for using Reactor.

  • Which software does the video recommend installing along with Reactor?

    -The video recommends installing Visual Studio 2022, with options for either the complete package or just the Visual Studio C++ Build Tools for a lighter setup.

  • How does Reactor determine the age and gender of characters?

    -Reactor automatically detects the gender and age of the characters in the images it processes for face swapping.

  • What is the quickest way to perform a face swap using Reactor?

    -The quickest way is to use the 'image to image' feature, where you input a previous image, set the size using the ruler tool, and then use Reactor to swap the face with a new image.

  • How does Reactor handle multiple characters in an image?

    -Reactor assigns numbers to each character in the image, starting from left to right (0, 1, 2, etc.), and allows the user to specify which character's face should be swapped with the target image.

  • Can Reactor be used in conjunction with text-to-image generation?

    -Yes, Reactor can be used with text-to-image generation, allowing the user to incorporate their own face or other specified faces into generated images.

  • What are some additional features or settings in Reactor that can enhance the face swapping process?

    -Additional features include the 'upscale' feature for improving image resolution after face swapping, and 'restore phase codeformer' for maintaining the quality of faces within the generated images.

  • How does the video demonstrate the effectiveness of Reactor in face swapping?

    -The video shows a series of examples where different faces, including famous personalities like Johnny Depp, are swapped onto various characters in images and text-to-image outputs, showcasing the versatility and accuracy of Reactor.

  • What is the final recommendation for users interested in trying Reactor?

    -The video encourages users to explore Reactor's capabilities, experiment with different images and settings, and provides links for software installation in the video description.



๐Ÿ–ผ๏ธ Introduction to Reactor Face Swapping

This paragraph introduces the Reactor face swapping tool, highlighting its advantages over RP (now discontinued) such as high-resolution swaps, compatibility with CPUs, and support for both SDXL and 1.5 models. The speaker also mentions that Reactor is uncensored and still in development. The paragraph begins with a brief overview and quickly transitions into the installation process of Reactor, emphasizing the need for Visual Studio 2022 and providing links for both Windows and community editions. The installation process is detailed, including the necessary steps and options to consider, such as selecting workloads like Python and C++ development. The speaker then demonstrates how to install the Reactor extension through Stable Fusion and checks its running status.


๐Ÿ”„ Quick Face Swap Demonstration

In this paragraph, the speaker demonstrates a quick face swap using Reactor. They explain the process of using the 'image to image' feature, setting the image size with a ruler, and using Reactor to swap the face. The speaker uses an image of a woman and the Mona Lisa as examples, showing how Reactor analyzes the source and target images, detects ages, and performs the swap. The paragraph also covers how to swap faces with multiple characters in an image by assigning numbers to each character and selecting the desired target image. The speaker further explores the use of Reactor in text-to-image scenarios, showcasing how it can integrate facial features into generated images and the option to upscale images post-swap.



๐Ÿ’กFace Swapping

Face swapping is a digital image manipulation technique that involves replacing the face of a person in one image with the face of another from a different image. In the video, the main theme revolves around demonstrating how to perform face swapping using a tool called Reactor, which is presented as an improvement over the previously popular tool, RP.


Reactor is a software tool or extension used for high-resolution face swapping, which is highlighted as superior to the previously used tool, RP. It is noted for its ability to upscale images, work efficiently with CPUs, and support both standard and high-resolution models without the need for a powerful GPU.

๐Ÿ’กStable Diffusion

Stable Diffusion is a type of AI model used in the process of face swapping. It is a foundational tool that Reactor builds upon to perform its functions. The script mentions the need to have Stable Diffusion installed to use Reactor for face swapping.

๐Ÿ’กVisual Studio 2022

Visual Studio 2022 is a software development environment that is required for the installation and possibly the operation of Reactor. The script provides links for downloading Visual Studio 2022, with options for a complete package or just the C++ build tools.


In the context of the video, extensions refer to additional software components or plugins that enhance or add new functionalities to a primary software application. Reactor is introduced as an extension for Stable Diffusion, enabling face swapping features.

๐Ÿ’กGender and Age Detection

This refers to the ability of the Reactor tool to automatically identify and account for the gender and age of the characters in the images being used for face swapping. This feature is important for creating more accurate and realistic face swaps.


Upscaling is the process of increasing the resolution of an image or digital content, often to enhance its quality or to make it suitable for larger displays. In the video, upscaling is discussed as one of the features of Reactor, which can improve the output of face swaps.

๐Ÿ’กText to Image

Text to image refers to the process of generating visual content based on textual descriptions. In the context of the video, it is one of the capabilities of Stable Diffusion, which can be further enhanced with the Reactor extension for face swapping.

๐Ÿ’กRestore Phase Code

Restore Phase Code is a feature or setting within the Reactor tool that is designed to improve the quality and accuracy of face swaps, particularly in preserving facial features and details.

๐Ÿ’กDevelopment and Discontinuation

Development refers to the ongoing improvement and addition of features to a software tool, while discontinuation indicates that a tool will no longer receive updates or support. In the video, Reactor is presented as actively being developed, whereas RP has been discontinued.


Reactor provides high-resolution face swaps with upscaling.

Reactor works well with CPUs, eliminating the need for a powerful GPU.

Reactor supports both SDXL and 1.5 models.

The tool automatically detects the gender and age of characters.

Reactor is uncensored and still in development.

Stable diffusion is used for face swapping.

Visual Studio 2022 and its C++ build tools are required for setup.

Reactor extension can be installed via a URL.

Face swapping can be done quickly with a previous image.

Reactor analyzes source and target images, guessing ages for more accurate swaps.

Multiple characters in an image can have their faces swapped individually.

Text-to-image functionality can be combined with face swapping.

Reactor can generate and swap faces in batches for multiple images.

Upscaling can be applied after face swapping for higher resolution images.

Restoring phase codes can enhance the quality of face swaps within Reactor.

Reactor's face swapping can be used for creative and practical applications.