How to Use the FaceSwap App on RunDiffusion

Face swapping in the cloud has never been easier. Whether you're creating character art, fixing a photo, or experimenting with AI, the FaceSwap app on Runnit gives you fast, professional-grade results—all from your browser. In this guide, we’ll walk you through opening the app, uploading your images, and customizing your settings for perfect swaps.

🚀 How to Open the FaceSwap App on Runnit

Follow these steps to launch the FaceSwap app on the Runnit platform:

Click on Apps on the left side of the UI

Find FaceSwap in the available apps tiles and Click on FaceSwap.

Using the Face Swap App

1. Face to Swap Into Image

This is the source face — the person whose face will be placed into another image. Choose an image.

• Select from left (if you have existing generations)
• Upload from your device
• Use Library to select a previously uploaded or generated image.

2. Image to Receive Swapped Face

This is the target image — the image that will receive the new face.
Choose a target image.

• Select from left
• Upload
• Use Library

💡 Tip: Choose high-resolution images for best results.

Gender

Choose the gender of the source face:

• Male
• Female
• Non-Binary

This setting helps optimize facial structure and alignment.

Hair Strategy

Choose how the app handles the hair during the swap. These are general guidance and the AI may take liberties.

• Use source person’s hair – full face and hair from the source is transferred. The hair transfered may not align perfectly with the original.
• Use target person’s hair – only the face is swapped, original hair remains

Optional: Upscale Generation

Turn this on if you want a higher-resolution final image.

Generate your image

Click Runnit to render your image.

Examine your results. You can see in this instance the AI took some liberties with their hair.

Another example

The Faceswap app on Runnit simplifies the face swap process. If you need more control try Facefusion in our opensource applications.

Bonus: Expand Your AI Workflow

Use your FaceSwap outputs alongside other apps in the Runnit ecosystem:

• Touch up or change background elements.

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• Generate animations with AI Videos.

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• Apply art styles using Sketch to Render.

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Final Thoughts

FaceSwap on Runnit is a powerful cloud-based tool designed for creators who want quick, high-quality face replacement without the hassle of local installs or GPU setup, or learning complex applications.

FAQ: FaceSwap App on Runnit

What is the FaceSwap App on Runnit?

FaceSwap is a cloud-based tool that lets you replace one person’s face with another directly in your browser. It’s designed for fast, high-quality, professional-grade swaps without installing software or configuring hardware.

Who is FaceSwap for?

It’s ideal for creators, designers, photographers, character artists, and anyone experimenting with AI-driven facial editing. It’s especially useful for quick concepting, photo corrections, and character development.

How do I open the FaceSwap App?

1. Log in at app.rundiffusion.com/login
2. Go to the Runnit Platform
3. Click Apps on the left sidebar
4. Select FaceSwap from the app tiles

What images do I need for a face swap?

You need two images:

1. Face to Swap Into Image: the source face you want to place into another image
2. Image to Receive Swapped Face: the target image that will receive the new face

You can upload images, use your library, or select from recent generations.

Does image quality matter?

Yes. Higher-resolution images produce smoother alignment, better blending, and more accurate facial structure.

What does the Gender setting do?

You can choose Male, Female, or Non-Binary. This helps the model optimize structural alignment and improve realism during the swap.

What does the Hair Strategy option control?

You can choose:

• Use source person’s hair: transfers the face and the source hair (may not align perfectly)
• Use target person’s hair: keeps the original hair and swaps only the face

These are guidelines; the AI may interpret creatively depending on the image.

Can I upscale the final result?

Yes. Turn on the optional Upscale toggle to generate a higher-resolution output.

How do I generate my swapped image?

Click Runnit after selecting your inputs. Your result will appear in the session view, where you can inspect and download it.

Why did the hair or lighting change unexpectedly?

FaceSwap uses AI to reconstruct the blended face. In some cases, it may take creative liberties with hair, lighting, or fine details. If you need more granular control, you can use Facefusion in the RunDiffusion open-source applications.

Can I combine FaceSwap with other tools on RunDiffusion?

Yes. You can bring your results into Runnit Boards on RunDiffusion

Do I need a GPU or local installs?

No. Everything runs in the cloud on Runnit. Just upload your images and generate.

What’s the main benefit of using FaceSwap on the Runnit Platform on RunDiffusion?

Simplicity and speed. You get high-quality, flexible face swaps with minimal effort, all inside the Runnit ecosystem.