GIF to WebM
Convert GIF to WebM.
Convert GIF to WebM.
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Tool guide
Free Online GIF to WebM Converter
Convert one GIF animation into a silent WebM video using browser-loaded FFmpeg. The tool uses the libvpx encoder with even dimensions and yuv420p output for practical browser video playback.
Steps
How it works
- Upload one valid GIF file up to 80 MB.
- Review the original animation preview.
- Start conversion and let FFmpeg decode the GIF and encode a WebM video.
- Preview the WebM result and download it when processing is complete.
Highlights
Key features
- Creates a real WebM video from animated or static GIF input.
- Uses the bundled libvpx video encoder and removes any audio stream.
- Adjusts odd source dimensions to even values required by the video pipeline.
- Provides original and WebM previews with progress feedback.
- Runs as a single-file browser-first conversion without a server upload step.
Use cases
Common uses
- Prepare a GIF animation for HTML video playback.
- Create a web-oriented silent video from animated artwork.
- Use a GIF sequence in a workflow that accepts WebM instead of GIF.
- Test whether WebM is a better delivery format for a particular animation.
Notes
Limitations to know
- Only one GIF can be converted at a time; batch, bulk, multiple-file, and ZIP features are not available.
- The libvpx yuv420p output does not preserve alpha transparency in this implementation.
- The result contains no audio because GIF input has no sound and the command explicitly disables audio.
- Variable GIF frame delays are interpreted during video encoding and may be approximated.
- WebM playback outside modern browser environments varies, and a smaller output file is not guaranteed.
FAQ
Frequently asked questions
Does GIF to WebM preserve animation?
The FFmpeg pipeline decodes the GIF frames and encodes them as WebM video, but variable frame timing may be approximated.
Will the WebM contain audio?
No. GIF has no audio, and the current WebM command explicitly creates video without audio.
Is GIF transparency preserved in WebM?
No. This converter uses libvpx with yuv420p output, which does not carry the GIF transparency as an alpha video channel.
Can I convert multiple GIFs together?
No. This tool currently accepts one GIF file up to 80 MB per conversion.
Will WebM always be smaller than GIF?
No. File size depends on resolution, duration, motion, source frames, and the encoder result.