Free transparent video converter · Beta

Stickers that stay see-through.

In: Animated PNG or GIF, up to 50 MB
Out: ProRes 4444 · WebM with alpha · MP4
Where: In your browser. Nothing is uploaded.
Cost: Free, no sign-up
In Figma: Optimizely exports your frames as an APNG

The checkerboard is the transparent part.

Size
Frames
Length
Background

Choose an animated PNG or GIF or drop it here, up to 50 MB

File

Where is it going? Edit in DaVinci, Premiere or Final CutProRes 4444 MOV, keeps transparency Overlay on a website or in OBSWebM, keeps transparency, small Post or send itMP4 on a background you pick

Frame rate, repeats and background

Frame rate Play it times

Your video is ready

Codec
Transparency
File size
Length
Converted

Download

The first conversion downloads the converter once, about 10 MB.

Why the background disappears

MP4 drops the see-through. ProRes keeps it.

H.264, the codec inside almost every MP4, has no alpha channel. Two files made from the same sticker: one opens in DaVinci with its background clear, one does not. This tool writes the first kind.

Measured with ffprobe on the same 3 second sticker
File	Codec	Pixel format	Transparency
Recorded in a browser, fails in DaVinci	H.264	yuv420p	None
Encoded with ffmpeg, opens in DaVinci	ProRes 4444	yuva444p12le	Kept
This tool, for editors	ProRes 4444	yuva444p12le	Kept

Three places, three files

Say where it goes. The codec follows.

Edit in DaVinci, Premiere or Final Cut

ProRes 4444 MOV. Every frame stored whole, with its alpha. Opens on macOS and Windows.

Sample sticker: 11.7 MB
Overlay on a website or in OBS

WebM with alpha. Plays in Chrome, Edge, Firefox and OBS media sources, see-through included.

Sample sticker: 618 KB
Post or send it

MP4 on a background you pick. Chats and social apps cannot show transparency, so you choose the color behind it.

Sample sticker: 143 KB

In Figma

Animating the sticker in Figma?

Optimizely turns a few frames, or a prototype flow, into a GIF, WebP, APNG or WebM, with transitions. Export the APNG, drop it here and get a ProRes file your editor keeps see-through.

Optimizely for Figma

A few useful details

Is my file uploaded?

No. The converter is ffmpeg compiled to WebAssembly and runs in this tab. Your file and the video never leave your device.

Why not export an MP4?

Because MP4 files almost always hold H.264, and H.264 has no alpha channel. The transparent part turns black or white. ProRes 4444 and WebM with alpha keep it.

Which editors open the ProRes file?

DaVinci Resolve, Premiere Pro, Final Cut Pro and After Effects read ProRes 4444 with its alpha channel on macOS and Windows. Put it on a track above your footage.

Why is the ProRes file so large?

ProRes is an editing codec: every frame is stored whole, so scrubbing stays fast. A 3 second, 256 px sticker comes out at about 12 MB. Use WebM when size matters more than editing.

Why does the preview show my sticker instead of the MOV?

Browsers do not play ProRes. The page shows your source and reports what was written: codec, pixel format and frame count, read from ffmpeg itself.

Does it work on a phone?

Yes, in a current browser. The first conversion downloads the converter once, about 10 MB, and long or large files need memory a phone may not have. The page tells you before it starts when a file is too big.

What is it built on?

ffmpeg.wasm, which is FFmpeg compiled for the browser. Its core is licensed GPL-2.0-or-later; the notice next to the files names the version and the source.

Built on ffmpeg.wasm, licensed GPL-2.0-or-later.