Face Swap Video Online with AI
Upload a video and a face photo — the AI replaces faces with photorealistic precision. Ideal for 30-second and 1-minute clips: motion tracking, color matching, and seamless blending built in. Free to try, no software to install.
Face Swap Tool
Our AI-powered face swap engine handles the entire process automatically.
Why Use ComfyUI Web for Face Swap
Video Face Swap
Replace faces in video clips with a single click. The AI tracks the original face across all frames and replaces it with your chosen face while preserving head movement, expression, and angle.
Realistic Blending
Advanced AI automatically matches skin tone, lighting, shadows, and color temperature between the source face and the target video. The result looks natural, not pasted on.
100% Cloud-Based
No app download, no Python installation, no GPU required. Upload your video and face photo through the browser and get results in minutes.
Fast Processing
Cloud GPUs process your video quickly. Most clips under 30 seconds are done in 1-3 minutes. Longer videos process proportionally.
Free to Try
Get started with no credit card. Free tier includes credits for video face swap. Paid plans offer more credits and faster priority processing.
Privacy First
Uploaded videos and photos are processed and not stored permanently. We don't share your content with third parties. Your media is deleted after processing.
How AI Face Swap Works
Three simple steps to swap faces in any video.
Upload Your Video
Upload the video clip where you want to replace a face — 30-second and 1-minute clips work great. Supports MP4, MOV, and WebM formats up to 50MB.
Upload the Target Face
Upload a clear photo of the face you want to use as replacement. Front-facing photos with good lighting work best.
Process & Download
Click generate. The AI detects faces, maps them frame-by-frame, blends lighting and skin tone, and renders the final video. Download the result in MP4.
Face Swap Quality Factors
What affects the quality of your face swap results.
| Factor | Recommendation | Impact | Importance | Notes |
|---|---|---|---|---|
Source Photo QualityCritical | Use a clear, well-lit, front-facing photo | Min 256×256 | ||
Video Resolution | Higher resolution videos produce better results | 720p+ recommended | ||
Face Angle in Video | Front/slight angle faces work best | Extreme profiles may be less accurate | ||
Lighting Consistency | Consistent lighting across the video | AI adapts, but consistent input helps |
What You Can Do with AI Face Swap
Creative applications for face swap technology.
Content Creation
Create entertaining videos for social media — place yourself in movie scenes, create parodies, or make group videos with friends.
Marketing & Advertising
Localize video ads by swapping model faces to match target demographics. Test creative variations without re-shooting.
Film & Video Production
Replace stunt double faces, correct continuity issues, or create visual effects for short films and independent productions.
Memes & Entertainment
Create viral meme content by swapping faces in iconic movie clips, music videos, or funny video templates.
Education & Presentations
Create engaging educational content by placing historical figures into modern settings or illustrating identity-related concepts.
Privacy Protection
Anonymize faces in videos for privacy compliance. Replace identifiable faces with generic ones for documentary or journalism use.
How AI Face Swap Technology Works
AI face swap uses deep learning models trained on millions of face images to understand facial structure, expressions, and lighting. The process involves three stages: face detection (finding and tracking faces across video frames), face mapping (aligning the source face geometry to the target), and face blending (matching skin tone, shadows, and lighting for a seamless result).
Modern face swap engines use generative adversarial networks (GANs) or diffusion models to produce photorealistic blending. The AI doesn't just paste one face over another — it reconstructs the face at each frame while preserving the target's expression, head angle, and movement. This is why the results look natural rather than like a photo collage.
ComfyUI Web runs this entire pipeline on cloud GPUs. You upload your video and source face, and the processing happens server-side. No need to install deepfake software, configure CUDA drivers, or manage Python environments.
Face Swap for 30-Second and 1-Minute Videos
Short clips are where video face swap shines. A 30-second video is the sweet spot for TikTok, Instagram Reels, and YouTube Shorts — it processes in about 1-3 minutes and the AI can track the face consistently across every frame. One-minute videos are fully supported too and simply take proportionally longer to render.
Credits scale with video length, so a 30-second face swap costs less than a full 1-minute swap. If you only need part of a longer video, trim it to the segment you want before uploading — you'll get faster results and spend fewer credits. The 50MB upload limit comfortably fits most 30-second to 1-minute clips at 720p or 1080p.
For best results on short clips, pick footage where the face stays visible and reasonably front-facing. Rapid cuts or faces leaving the frame make tracking harder regardless of clip length.
Ethics and Responsible Use
Face swap technology is powerful and should be used responsibly. ComfyUI Web is designed for creative, educational, and entertainment purposes. Creating non-consensual deepfake content of real people, impersonation for fraud, or content that could harm someone's reputation violates our terms of service.
We encourage transparent use: label AI-generated face swap content when sharing publicly. Many social platforms now require disclosure of AI-manipulated media. Using face swap for creative projects, memes, marketing, and entertainment is perfectly appropriate — the key is consent and transparency.
AI Face Swap — FAQ
- What is AI face swap?
- AI face swap uses deep learning to replace one person's face in a video with another person's face, while preserving natural movement, expressions, and lighting. The result is a video where the swapped face looks realistic and moves naturally.
- Can I face swap a 30-second video?
- Yes — 30-second clips are the sweet spot. They process in about 1-3 minutes and fit well within the 50MB upload limit. Short-form clips for TikTok, Reels, and Shorts are the most common use case.
- Can I face swap a 1-minute video?
- Yes. One-minute videos are fully supported and process proportionally longer than 30-second clips. Credits scale with video length, so trimming to just the segment you need saves both time and credits.
- Is the face swap tool free?
- Yes. ComfyUI Web offers a free tier for face swap with credits that refresh regularly. No credit card required to start. Paid plans provide more credits and faster processing.
- What kind of face photo works best?
- A clear, well-lit, front-facing photo at 256×256 pixels or higher. Avoid heavily filtered photos, extreme angles, or photos with sunglasses. The clearer the source face, the better the swap result.
- How long does face swap processing take?
- Most video clips under 30 seconds are processed in 1-3 minutes. Longer videos take proportionally more time. Processing speed depends on video resolution and current server load.
- Can I swap multiple faces in one video?
- Our current tool supports single face swap per video. For multiple face swaps, process the video multiple times with different target faces.
- Is my data private?
- Yes. Uploaded videos and face photos are processed on our servers and not permanently stored. We do not share your content with third parties. Files are deleted after processing.
- Can I use face swap videos commercially?
- For your own creative and marketing projects, yes. However, you must have the right to use the face being swapped — either your own face, a model's face with permission, or stock/AI-generated faces. Creating misleading content of real people without consent is prohibited.
- What video formats are supported?
- We support MP4, MOV, and WebM video formats. Output is delivered in MP4 (H.264), which is compatible with all major platforms and editing software.