What both formats have in common
Videohead can export transparent overlays as WebM or MOV. Each file stores an alpha channel so backgrounds stay see-through without chroma key.
Resolution is up to 1080p. You still composite the same way: one track for your base video, one track above for the overlay.
When to use WebM
WebM (often with VP9) is widely supported in browser-based tools and many desktop editors. It tends to produce smaller files, which helps when you generate lots of overlay variants for Shorts or ad testing.
CapCut Desktop, DaVinci Resolve, and OBS Studio handle WebM with alpha well—see our import guides for each app.
- Smaller file sizes for the same resolution
- Strong support in CapCut Desktop and OBS
- Good default for web-first and Shorts-heavy workflows
When to use MOV
MOV (commonly ProRes 4444 or similar alpha-capable codecs) is the traditional choice in professional NLEs. Some Premiere Pro and Final Cut Pro workflows prefer MOV for alpha interpret settings and interchange with motion teams.
If your editor or client spec asks for MOV, export MOV from Videohead. If you are unsure, try WebM first—many editors accept both.
- Familiar in Premiere Pro and Final Cut Pro pipelines
- Often requested for client deliverables
- Can be larger than WebM but very reliable in pro timelines
Practical recommendation
For CapCut Desktop, OBS, and most Resolve edits: start with WebM. For Premiere-centric or agency handoffs that specify QuickTime: use MOV.
You can regenerate the same overlay concept and export the other format without redoing the design—handy when one editor on the team uses CapCut and another uses Premiere.
Key takeaways
- WebM and MOV both support alpha from Videohead
- WebM: smaller files, great for CapCut Desktop and OBS
- MOV: pro NLE interchange, common in Premiere/FCP workflows
- Match the format to your editor; switch formats without redesigning the overlay