Convert AVI to WEBM
Convert your AVI video files to WEBM directly in your browser.
How to convert video in 3 steps
Choose a AVI video file.
Click convert to WEBM.
Download your WEBM video.
Format descriptions
AVI — AVI is one of the oldest video containers, developed by Microsoft. It is widely compatible but offers less efficient compression and larger files.
WEBM — WebM is an open video container designed for the web. It uses VP8/VP9 and Opus codecs, offering small files and efficient streaming.
Technical comparison: AVI vs WEBM
Technical breakdown of the AVI and WEBM specifications: compression, colour, transparency and animation support.
| Property | AVI | WebM |
|---|---|---|
| Specification | AVI (Audio Video Interleave) | WebM (WebM Video Container) |
| Media type | Video | Video |
| Compression | Lossy · DivX / XviD / MPEG-4 + PCM | Hybrid (lossy or lossless) · VP8 / VP9 / AV1 + Opus |
| Color space / bit depth | 24-bit YUV | YUV 4:2:0 |
| Transparency | Not applicable | Partial support |
| Animation | Yes (animated) | Yes (animated) |
| Best for | AVI is one of the oldest video containers, developed by Microsoft. It is widely compatible but offers less efficient compression and larger files. | WebM is an open video container designed for the web. It uses VP8/VP9 and Opus codecs, offering small files and efficient streaming. |
What happens when converting AVI to WEBM?
The AVI data is decoded inside your browser with WebAssembly and re-encoded to the WEBM specification, so no file is ever uploaded to a server. Both formats rely on comparable compression, so file size and perceived quality stay in the same range.
Frequently Asked Questions
What is video conversion?
Video conversion changes a video file from one format to another, for example from AVI to WEBM, while keeping the video content.
Are my video files uploaded?
No. This tool processes video files directly in your browser. Your video files are never sent to a server.
Which video formats are supported?
This tool converts AVI video files to WEBM, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many video files as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in WEBM format, ready to download and use.
About the video converter
Convert AVI to WEBM video online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
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- Convert AVI to MP4Convert AVI to MP4 video online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert AVI to MKVConvert AVI to MKV video online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
- Convert WEBM to AVIConvert WEBM to AVI video online for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.