Convert AVI to WebM Online
Modernize your AVI videos. Convert them to WebM format for use on the web. Smaller file size, faster loading, and plug-in free playback.
Why Convert AVI to WebM?
AVI is an obsolete format for the modern web — serving AVI files directly requires huge bandwidth and forces users to download entire files before viewing, as browsers cannot stream them natively. WebM is a format designed by Google specifically to stream efficiently even on slow mobile connections using VP8 or VP9 video codecs.
Using WebM on your website dramatically improves page loading performance and Core Web Vitals scores compared to serving large AVI download links. It is the preferred format for HTML5 video backgrounds, embedded tutorials, product demonstrations, and any web content where fast, plugin-free playback is essential.
How to Convert AVI to WebM
- Upload your AVI file.
- We encode it to VP9/WebM format.
- Download the optimized file for your site.
Key Features of MiConvert AVI to WEBM
- Convert AVI videos to WebM format
- Optimized for HTML5 web streaming
- High compression with VP9 codec
- Preserve video quality at lower bitrates
- Fast and secure cloud reference
- No software download required
Frequently Asked Questions
How big is the savings?
Massive. An uncompressed AVI can be 1GB; the WebM version might be 50MB with virtually no visible difference on screens.
Does it have sound?
Yes, WebM includes high-quality audio using the Vorbis or Opus codec, both of which offer excellent quality at low bitrates for efficient web streaming.
Which browsers support it?
Google Chrome, Mozilla Firefox, Microsoft Edge, Opera, and recent versions of Apple Safari all support native WebM video playback without plugins.
Is WebM better than MP4?
For web use, WebM (VP9/AV1) often provides better compression than standard MP4 (H.264), meaning higher quality at smaller file sizes.