Best AI Tools to Replace Characters in Videos (2026): Tested and Ranked

TL;DR

• Magic Hour: Best free option for browser-based character replacement with no sign-up. The free plan supports clips up to 3 seconds and adds a watermark to free results, with support for real people, cartoons, and anime references. 
• Akool: Best for professional marketing and A/B testing with different spokesperson looks.
• Viggle AI: Best for motion-driven character animation and full-body swaps, rather than the traditional replacement workflow.
• Cuty AI: Best for single-person replacement with natural blending into the original scene.
• Vidnoz: Best for replacing multiple faces in one video.
• Remaker AI: Best for long video files and batch face-replacement workflows.

Introduction

You may want to swap a person in existing footage without reshooting the scene, opening complicated VFX software, or hiring a production team. But “AI character replacement” covers several different workflows: some tools replace the whole character in existing footage, some animate a still image using motion from another video, and some only replace faces. We will compare six tools based on their free-tier access, supported workflows, output quality, and published usage limitations. 

Character Replace vs Character Animation vs Face Swap: Know the Difference First

Before choosing a tool, it helps to define what you actually want to change.

This article focuses mainly on the first category: replacing the character already in your footage. If you only need to change a face, see Magic Hour's Face Swap Video tool; if you want to animate a still character, the Viggle section below explains how that workflow differs.

Comparison Table

Magic Hour's current free plan is intended for testing and applies a watermark; paid plans remove the watermark and unlock commercial use.

Key takeaway: Magic Hour is the most straightforward option here if your priority is starting in a browser and replacing a full character with either a realistic or stylized reference.

The 6 Best AI Character Replace Tools

1. Magic Hour

Best for: Free browser-based character replacement with no sign-up

Magic Hour Character Replace is built specifically around replacing the subject in existing footage while preserving the source performance. You upload a video and a reference image, and the model generates a new version with the replacement character; it supports real people as well as cartoons, anime, and illustrated characters. The tool also offers Character mode for changing the subject while keeping the scene intact and Scene mode for regenerating the subject and background together.

A useful shortcut is the built-in preset gallery, which includes characters such as Peter Griffin, Kratos, Elmo, Deadpool, Chun-Li, and the Grinch, making it easy to test the workflow without preparing a reference image. The main limitation is that difficult footage—especially heavy motion blur, occlusion, or fast cuts—can still introduce flicker or character drift.

• Free plan: Yes
• Watermark on free results: Yes
• Full character replace: Yes
• Starting paid price: $15/month

Magic Hour's Creator plan is currently $15/month when billed monthly and includes watermark-free exports and commercial use.

2. Akool

Best for: Professional marketing teams running A/B tests with different spokesperson looks

Akool positions Character Swap as a professional workflow for marketing, advertising, entertainment, and production teams. Its Character Swap system has two modes: Replace, which transfers a character into a video, and Animate, which uses a still character image and applies motion from a reference video. Its API documentation supports clips up to 120 seconds and output up to 1080p for the Character Swap workflow.

The platform is a strong fit for teams creating multiple versions of campaigns or testing different talent and character looks. The tradeoff is that Akool's licensing and pricing are more business-oriented, while its free tier is intended for personal use and includes restrictions compared with paid plans.

• Free plan: Yes
• Watermark on free results: Yes
• Full character replace: Yes / model-dependent
• Starting paid price: $12/month

3. Viggle AI

Best for: Animating a character image with motion from a reference video

Viggle AI is worth including, but it needs an important distinction: its core strength is body swap and motion-driven character animation, rather than the classic “replace the actor in my existing footage while keeping the shot” workflow.

You can provide a character image and a video, and Viggle maps the character's appearance onto the video's movement. Its current body-swap page says it supports full face-and-body replacement, anime, 2D, 3D, and cartoon characters, as well as multi-person swaps.

That makes it excellent for memes, dance clips, character performances, and motion references. However, if your goal is specifically to replace an actor in an existing production shot while preserving that shot's original visual identity, a dedicated character-replace workflow is usually the better match.

• Free plan: Yes
• Watermark on free results: Varies by workflow
• Full character replace: Yes, full-body
• Starting paid price: $9.99/month 

4. Cuty AI

Best for: Clean single-person replacement with natural blending

Cuty AI offers a dedicated Video Character Replace workflow that automatically identifies the subject and replaces it with a reference character while preserving the background, motion, and action.

Its main appeal is simplicity: upload the source video, provide the reference, and let the model handle subject identification and blending. Cuty AI has a free plan, but free outputs include a watermark and commercial use is reserved for paid plans.

• Free plan: Yes
• Watermark on free results: Yes
• Full character replace: Yes
• Starting paid price: $6.9/month 

5. Vidnoz

Best for: Multi-face replacement in a single video

Vidnoz has several related workflows, including AI Character Swap and dedicated video face-swap tools. Its current Face Swap tool supports both single-face and multiple-face video replacement, making it particularly useful when a clip contains several people.

The important limitation is that Vidnoz's dedicated face-swap workflow is not the same as full character replacement: the primary operation changes the face while retaining the original body and appearance. Its broader AI Character Swap offering is more focused on avatar-style character changes and talking-video use cases.

• Free plan: Yes / limited
• Watermark on free results: Yes / varies by tool
• Full character replace: Face-focused
• Starting paid price: $9.99/month 

6. Remaker AI

Best for: Long video files and high-volume replacement workflows

Remaker AI is particularly useful if file size and video length are your main constraints. Its Video Face Swap tool accepts files up to 500MB and 30 minutes, while its batch workflow can process multiple videos.

Remaker is primarily a face-swap platform rather than a full actor-replacement system, so it should not be treated as identical to Magic Hour Character Replace. It does, however, offer multi-face video swapping and a credit-based system, with new users receiving free credits and additional credits available through daily check-ins.

• Free plan: Yes / limited
• Watermark on free results: No on many current face-swap tools
• Full character replace: Face only
• Starting paid price: $5.99/month 

Which Tool Should You Use?

• Choose Magic Hour if you want browser-based character replacement that works with real people, cartoons, and anime references without starting with an account.
• Choose Akool if you're a marketing team creating professional campaign variations and need a broader production platform.
• Choose Viggle AI if you have a character image and want that character to perform specific motion from a video reference.
• Choose Cuty AI if your priority is a straightforward single-person replacement workflow with the original scene preserved.
• Choose Remaker AI if you are working with unusually long video files or need batch face-swapping rather than full character replacement.

A Note on Consent and Responsible Use

Only replace a person in a video with someone else's likeness if you have their consent or have the right to use the reference image. Avoid creating replacement content that falsely presents a real person as saying or doing something they did not actually say or do. Always check each platform's current terms before using generated content publicly or commercially.

Frequently Asked Questions

What is the best free AI tool to replace a character in a video?

For a true character-replacement workflow, Magic Hour is one of the easiest places to start because it runs in the browser and supports both realistic and stylized reference characters. Its free plan is intended for testing and includes watermarked outputs; commercial use and watermark-free exports require a paid plan.

Is Viggle AI a character replace tool?

Viggle can perform full-body character swaps, but its workflow is different from a conventional actor-replacement tool. It is especially strong when you have a character image and want to transfer the motion of another video onto that character.

Can I replace a character in a video with a cartoon or anime character?

Yes. Magic Hour explicitly supports cartoon, anime, and illustrated reference images, while Viggle also supports realistic, anime, 2D, 3D, and cartoon character styles. Cuty AI's Character Replace workflow can also use a reference character image.

Do any of these tools work without downloading software?

Yes. Magic Hour, Akool, Cuty AI, Vidnoz, and Remaker AI all work in a web browser. Viggle AI uses a Discord-based workflow, so it is the exception. 

Can I use the output commercially?

Yes, but commercial rights depend on the tool and plan. Magic Hour, Akool, Cuty AI, Vidnoz, and Remaker AI do not include commercial use on their free plans, while Viggle AI allows commercial use of its generated content, including on its free tier.