AVI to WebM Converter
Convert legacy AVI files to web-optimized WebM for HTML5 video.
Video Converter
Convert videos between different formats (powered by WebCodecs)
Why Convert AVI to WebM?
AVI files are too large and incompatible for web delivery. WebM is an open, royalty-free format built for the web with excellent compression via VP8/VP9 codecs. Converting AVI to WebM makes your videos ready for embedding on websites and streaming in modern browsers.
Features
100% Private
Files never leave your device. All processing happens in your browser.
Instant Conversion
No waiting for server uploads. Convert AVI to WebM in seconds.
Free & Unlimited
No signup, no limits, no watermarks. Convert as many files as you need.
Batch Support
Upload multiple files and convert them all at once with consistent settings.
Frequently Asked Questions
Why convert AVI to WebM instead of MP4?
WebM is royalty-free and optimized specifically for web streaming. It offers competitive compression and is the preferred format for many HTML5 video implementations.
Is WebM supported on all devices?
WebM works in all major browsers including Chrome, Firefox, Edge, and Safari. However, native app support on iOS is limited, so MP4 may be better for mobile apps.
How much will the file size decrease?
AVI files are typically very large due to minimal compression. Converting to WebM can reduce file size by 60-90% depending on the original codec and settings.
Will audio be preserved in the conversion?
Yes. The audio track is re-encoded to Opus or Vorbis format, which are the standard audio codecs for WebM containers.
Is this converter free to use?
Yes, completely free with no limits. All processing happens locally in your browser with no server uploads.
How It Works
This converter uses your browser's built-in WebAssembly to process files locally. Your AVI files are decoded and re-encoded as WebM entirely on your device. Nothing is uploaded to any server.
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