Finding out that the "transparent video" you exported is actually a black-background MP4 is a special kind of frustrating. It breaks overlays in OBS, composites wrong in editors, and looks flat on product pages.

I built RenderAlpha to fix that: it removes the background from a whole video — not just one frame — and exports files that actually stay transparent.

What it does

  • Upload an MP4, MOV, WebM or GIF (up to 60 seconds)
  • See the background removed on one frame of your clip for free before you sign in
  • Export the entire clip with a real alpha channel

The formats that actually matter

  • Transparent WebM (VP9 with alpha) — drops straight into web pages and OBS overlays
  • ProRes 4444 .mov — for Premiere Pro, Final Cut Pro and After Effects (up to 10 seconds)
  • Transparent GIF — scaled to at most 720px, handy for docs and chat
  • MP4 on a solid color — when you need a fallback background

No watermark on any export. If a render fails, the credits are refunded automatically.

Privacy

Uploads are stored privately, used only for your render, and deleted after 1 day. Finished videos are kept for 7 days before they are removed.

Try it

Drop a clip at renderalpha.com — the one-frame preview is free and no sign-up is needed for that.

Feedback welcome, especially: how does it handle your footage (hair, motion blur, fast movement), and what's missing from the export options?