Ebsynth
EbSynth is an AI-powered video editing tool that enables users to transform footage by painting over a single frame. It is faster, stronger and easier to use th...
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What is Ebsynth?
EbSynth is VFX software for creative video transformations, retouching, and rotoscopy that lets you change an entire video by editing just one frame. The core workflow involves painting over a keyframe in your video, and EbSynth automatically propagates that artistic style across the entire sequence while preserving the original motion and details.
The tool excels at turning live-action performance into hand-drawn animation, skipping tedious manual tracking for video touch-ups and digital makeup, and making colorizing fast and effortless. Users can iterate quickly as EbSynth brings ideas to life instantly, keeping creators immersed in the creative flow.
EbSynth is designed for artists, animators, VFX artists, and content creators who want creative control without expensive workflows. It is made by Šárka Sochorová and Ondřej Jamriška at Secret Weapons to unlock new storytelling ways. The software works in the browser with Chrome recommended for best performance.
Key features include painting over videos to create stylized animation, retouching and colorizing without manual tracking, optional AI-generated keyframes via
Ebsynth pricing
Pricing model: Free
EbSynth offers three tiers: Free ($0) includes all core functions, 720p HD video export, and MP4 format output with no time or functional limitations. Pro is $20/month and includes up to 4K video export, PNG sequence output, 100 generated images, and priority processing. Studio has custom pricing and runs entirely offline with complete data privacy, command-line automation, and dedicated support for businesses requiring offline pipelines.
Ebsynth pros
- Transform entire videos by editing only one frame
- No manual tracking required for retouching
- Turns live-action into hand-drawn animation easily
- Fast and effortless colorizing
- Free plan with all core functions and no time limits
- 720p HD MP4 export on free tier
- Optional AI keyframe generation with text prompts
- Texture-synthesis preserves original video details
- Browser-based, no hardware installation needed
- Real-time iteration keeps creative flow intact
- Supports transparent background keyframes for isolation
- 4K export available on Pro plan
- PNG sequence output for professional workflows
- Priority processing on Pro plan
- Studio plan offers complete offline processing
- Dedicated support for Studio customers
- Command-line automation for Studio users
Ebsynth cons
- Free tier limited to 720p resolution
- Free tier only exports MP4, not PNG sequences
- Pro plan limited to 100 generated images monthly
- Requires Chrome browser for best experience
- Memory-intensive for long or high-resolution videos
- Needs dedicated GPU on laptops for optimal performance
- Online processing temporarily uploads videos to servers
- Stretchy artifacts if keyframes don't align with video frames
- Occasionally requires additional keyframes to fix broken areas
- Shiny or flat clothing materials are hard to track
Frequently asked questions about Ebsynth
Does EbSynth use AI to propagate keyframes across the timeline?
No, the propagation of keyframes across the timeline doesn't use AI. It's a texture-synthesis algorithm that only uses your video and keyframes to produce the final result. It doesn't use generative models trained on external datasets. There is an optional AI feature called 'Generate Image' in EbSynth that lets you generate your keyframes.
What browser should I use for the best experience?
Chrome is recommended for the best experience, especially for large projects with long or high-resolution videos. Chrome handles memory-intensive processing most reliably. On laptops, make sure Chrome uses your dedicated graphics card for optimal performance.
Are my video files uploaded to the cloud?
No, your projects stay on your computer. EbSynth temporarily uploads your video and keyframes to their servers to render your animation, then immediately deletes them once results are sent back. They never share your files or use them for any internal purposes. For fully offline processing with no uploads, consider the Studio Plan by contacting [email protected].
What are the best practices for creating keyframes?
Start with a single keyframe and create additional keyframes by fixing broken areas in already synthesized frames. Choose keyframe timing carefully - select frames showing the most content and clear poses, not the middle of movements. Align shapes in your keyframes to video frame shapes to avoid stretchy, ripple-like artifacts. If using AI to generate keyframes with artifacts, use a paintbrush to correct errors, then run another AI pass with lower strength. Divide shots into independently moving parts (background, face, eyes) and work on each in separate video tracks. Use keyframes on transparent background to isolate elements.
What tips help with shooting the guiding video?
The quality of propagation depends on calculating optical flow from the guiding video. Use soft, diffuse lighting to prevent hard, shifting shadows. Pick clothes with interesting textures since shiny or flat materials are hard to track. Increase the frame rate for shots with fast movement to reduce motion blur.
Is there a free plan to try EbSynth?
Yes, EbSynth offers a Free plan to anyone who wants to try it out. There are no time or functional limitations - you get to experience the whole EbSynth including all core functions and 720p HD export. If you need advanced features like high-resolution render, PNG sequence output, or more keyframe generations, you can upgrade to the Pro plan.
How do I cancel my subscription?
Click the user menu in the top right corner and select 'Manage Subscription' to cancel. Your plan stays active until the end of your current billing period.
What resolution can I export on each plan?
The Free plan exports up to 720p HD video in MP4 format. The Pro plan supports up to 4K video export with PNG sequence output option. The Studio plan's resolution capabilities depend on custom configuration for offline processing.
Who created EbSynth?
EbSynth is made by Šárka Sochorová and Ondřej Jamriška at Secret Weapons. They created it to unlock new ways of storytelling and put creative control in the hands of artists.
What file formats does EbSynth support?
The Free plan outputs MP4 format at 720p HD. The Pro plan supports PNG sequence output in addition to higher resolution rendering up to 4K. The tool works with video files in the browser and accepts keyframe images that can be painted over or AI-generated.