01
Upload WebM
Choose a source WebM and review its duration and dimensions.
Input and output format · WebM
MOV
Input
Process
Export
Process
Export
Remove a WebM Background and Export Transparent WebM
WebM can be both the uploaded source and the transparent result. It is especially useful for web overlays, product callouts, animated characters, and interface motion.
WebM input
WebM alpha output
Browser playback
Smaller than production codecs
Three-stage workflow
From source file to usable foreground
Validate the source, isolate the subject, and export the format you actually need.
02
Generate the foreground mask
AI follows the subject through the frames and removes the existing scene.
03
Export WebM with transparency
Use the result directly in a compatible website or compositing workflow.
For the web
Alpha-enabled motion without a rectangular background
Transparent WebM lets a moving subject sit over live page content. It is often more efficient than a transparent GIF and supports smoother partial transparency around edges.
- Landing-page characters
- Product explainers
- Animated stickers
- Interactive UI overlays
Compatibility
Test playback in the browsers and editors you target
Browser support is strong in modern environments, but individual editing applications may handle WebM and alpha differently. Keep a production master if the asset will move between several tools.
What this page resolves
Match the workflow to the real job
The file extension describes a container, not the exact video codec inside it. Two files with the same extension can decode differently, so the upload is validated before processing and difficult files may need to be re-encoded in a standard editor.
The source container does not determine the transparent delivery format. MP4, MOV, and WebM are accepted as inputs, while a transparent result is delivered as WebM and a result with a replacement image is delivered as a conventional composited video.
Source preparation
Small input changes prevent avoidable edge problems
Use the highest-quality original available instead of a copy downloaded from a social platform. Keep the subject large enough to see, avoid aggressive compression, and prefer even lighting with visual separation between foreground and background.
Preview the beginning, middle, and end before upload. A clip that looks easy in its first frame may contain crossed hands, hair movement, camera cuts, fast rotation, or an object that briefly disappears behind another element.
- Known video codec
- Stable frame rate
- Original-quality source
- Audio checked separately
Verified product limits
Inputs, outputs, credits, and plan limits
The live remover accepts MP4, MOV, and WebM. Transparent mode returns WebM; custom-background mode accepts one JPG, PNG, or WebP image up to 10 MB. A still image is composited behind the isolated foreground—the product does not currently accept a replacement video.
The free trial supports one verified clip up to 5 seconds and 50 MB. Paid plans raise the limit to 60, 180, or 300 seconds and 200 or 500 MB depending on tier. Processing credits are rounded up in five-second blocks, so a 6-second clip uses 10 credits.
- MP4, MOV, or WebM input
- Transparent WebM output
- JPG, PNG, or WebP background
- 5 credits per started 5-second block
Questions
Details worth checking before you export
Can WebM contain transparency?+
Yes. Supported WebM codecs can preserve an alpha channel for transparent browser video.
Is WebM better than transparent GIF?+
For color, edge softness, and compression, usually yes. GIF remains useful where simple legacy compatibility matters.
Can I upload WebM as the source?+
Yes. The video background remover accepts WebM input.
How are video background removal credits calculated?+
Credits follow processed duration and round up to the next five-second block. A clip from 1–5 seconds uses 5 credits, 6–10 seconds uses 10 credits, and the same rule continues for longer clips.
What are the current upload limits?+
The verified free trial allows one clip up to 5 seconds and 50 MB. Depending on the paid tier, limits increase to 60, 180, or 300 seconds and 200 or 500 MB. Background images are limited to 10 MB.