Webm Generator
WebmGenerator cuts, filters, and joins WebM, MP4, and GIF files through a user interface and automation.
About Webm Generator
WebmGenerator is an open-source video editing application for cutting, filtering and joining clips into edited videos. It combines an interactive clip-selection workflow with automation for common editing tasks. It runs from Python source or a bundled Windows release; source setup includes external tools and Python packages.
Pricing is not clearly stated.
Key features
- Exports WebM (VP8 or VP9), MP4 (x264, H.265 or SVT AV1) and high-quality GIF.
- Interactive clip selection powered by mpv.
- Filters including cropping, tone mapping and VR-to-2D projection.
- Keyframed filter adjustment, object tracking and text or image overlays.
- Automatic clip isolation from scene changes or audio levels and silence.
- Automatic bitrate adjustment for file-size targets.
- Youtube-dlp integration for downloading video, including live streams.
- Packs multiple videos into dynamically sized grids.
Watch out for
- ffmpeg and mpv-2.dll should be placed in the same folder as the script or on PATH.
- Running from Python source needs python-mpv, pygubu, numpy, pathvalidate and tkinterdnd2.
- Downloading from sites requires the optional youtube-dlp.
- Linux may need system Tk installed separately, such as python3-tk on Ubuntu.
Webm Generator at a glance
- Category
- Design & Creative › Video Editing & Animation
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Windows, Linux
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Video Editing & Animation
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