Turn videos into GIF, APNG, and WebP. Local AI cutout, background replacement, format conversion, and frame editing — all on your Mac, no uploads.
TransMov is a lightweight yet powerful tool for creating, converting, and previewing animated images on macOS. Convert MP4/MOV videos into high-quality GIF, APNG, and WebP animations, remove or replace video backgrounds, convert animation formats, preview animation details, and export transparent animations — all processed locally on your Mac.
WHY TRANSMOV
• Fully local processing — no cloud upload, no account required
• Designed for GIF creation and animation workflows
• Precise control over trim range, crop, frame rate, size, compression, and transparency
• Transparent-channel preview and edge inspection
• Native macOS experience: lightweight, fast, and a one-stop animation studio
WHAT YOU CAN DO
1. Video to GIF / APNG / WebP
Convert MP4/MOV videos into optimized GIF, APNG, WebP animations, or PNG sequences.
• Trim and crop videos
• Adjust frame rate, size, aspect ratio, and looping
• Optimize GIF palettes to control file size (256 / 128 / 64 colors)
• Adjust WebP quality to balance size and sharpness
• Export transparent animations (alpha channel)
• Export PNG sequences (ZIP)
• Real-time export size estimation
2. AI Video Background Removal
Remove or replace video backgrounds with AI or chroma key, then export as GIF, APNG, WebP, or PNG sequences.
• Trim and crop videos
• Local AI cutout: automatically detect the subject and remove the background on your Mac
• Chroma key cutout for green-screen videos
• Frame-by-frame editing (delete, replace, or download a frame as PNG)
• Eraser: Clean up unwanted leftovers in a cutout frame
• Compare original vs processed (single / side-by-side)
• Alpha-channel preview and edge inspection
• Advanced edge refinement (feather, expand, sharpen, smooth, denoise)
• Export with transparent background, or replace background with solid colors, gradient presets, or custom images
• Export GIF, APNG, WebP, or PNG sequences
• Real-time export size estimation
3. Animation Format Conversion (GIF / APNG / WebP)
Convert and optimize between GIF, APNG, and WebP.
• Import and preview GIF, APNG, and WebP files
• Convert between animation formats
• Adjust output size and aspect ratio
• Optimize GIF palettes to control file size (256 / 128 / 64 colors)
• Adjust WebP quality to balance size and sharpness
• Real-time export size estimation
4. Animation Preview (GIF / APNG / WebP)
A preview tool with full playback control for GIF, APNG, and WebP.
• Frame-by-frame and continuous playback
• Adjust playback speed and looping
• View file size, duration, and frame info
• Switch preview backgrounds for transparent animations
PERFECT FOR
Memes, transparent stickers, social content, UI animations, and product demos.
PRIVACY FIRST
100% local processing. Files stay on your Mac and are never uploaded.
PRO UPGRADE
• Export without watermarks
• Process longer videos
• Unlock advanced edge refinement
• Replace backgrounds with custom images
• Frame editor eraser
• No format or export-size limits, unlimited exports
MORE
• Privacy Policy: https://louisbuilds.me/transmov/privacy-policy.html
• Terms of Service: https://louisbuilds.me/transmov/terms-of-service.html
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Almost There…
RiceBandit
This app does almost everything I need it to do, except for 1 crucial feature: it needs an output quality setting. It only outputs at 100% best, but when it comes to outputting GIF files (more than likely meant for to be displayed on the web, optimization is everything. Without this, this app is completely pointless!
Developer Response
Thank you for this crucial feedback! We completely agree that optimization is everything for the web. We’ve been working hard on this, and we’re excited to share that v2.1 (currently in review) introduces a professional Size Control system. You can now adjust WebP quality via a slider and GIF file sizes via color depth options, with real-time size estimates before you export. We hope these features make the app exactly what you need. Please give the update a try once it’s live!
v2.3 brings several updates to Video BG Removal:
• Change Background: 8 new gradient presets.
• Export Single Frame: Save any frame as a PNG for further editing in other apps.
• Eraser (Pro): Clean up unwanted leftovers in a cutout frame.
Version 2.3
The developer, 聪 陈, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More