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How to Convert AVI to WebM?
Follow these simple steps to convert AVI files to WebM in seconds:
Upload
Select or drag your AVI file to our online AVI to WebM converter.

Convert
Click the “Convert” button and let our tool transform your .avi file to .webm in seconds.

Download
Save your newly converted WebM file to your device, ready to stream or share.

What is AVI?
AVI, or Audio Video Interleave, is a multimedia container format developed by Microsoft that stores video and audio data in a single file. It uses less compression than modern formats like MP4, resulting in larger file sizes but often higher quality. AVI supports a wide range of codecs for video (such as DivX or Xvid) and audio (like MP3 or AC3), offering flexibility in how media is encoded. While AVI is best suited for Windows-based systems and players like Windows Media Player, it may face compatibility issues on mobile devices or web browsers without additional codecs. Unlike MP4, AVI does not natively support streaming or subtitles, making it more suitable for local playback and editing.
What is WebM?
WebM is an open, royalty-free video file format designed for the web. Developed by Google, it is optimized for efficient streaming and playback in web browsers. WebM uses the VP8 or VP9 video codecs and the Vorbis or Opus audio codecs to deliver high-quality, compressed media. It is supported by major browsers like Chrome, Firefox, and Opera without the need for plugins. WebM is especially popular for HTML5 video and is widely used on platforms like YouTube for fast, seamless video delivery.
AVI vs. WebM
AVI vs. WebM—let’s see which is better! Here's a detailed comparison:
Features
AVI
- File Extension
- .avi No
- Developer
- Microsoft No
- Compression
- Minimal compression; larger file sizes No
- Quality
- High-quality but file size depends on codec used No
- Video Codec Support
- DivX, Xvid, MPEG-4, H.264 (varies by player) No
- Audio Codec Support
- MP3, AC3, PCM, AAC No
- Streaming Support
- Limited; not ideal for modern streaming No
- Compatibility
- Best on Windows systems and older media players No
- Use Cases
- Local video playback, archival, video editing No
WebM
- File Extension
- .webm No
- Developer
- Compression
- Efficient compression optimized for web streaming No
- Quality
- Web-optimized quality, may lose fidelity at high bitrates No
- Video Codec Support
- VP8, VP9, AV1 No
- Audio Codec Support
- Vorbis, Opus No
- Streaming Support
- Designed for seamless HTML5 video streaming No
- Compatibility
- Supported by all major web browsers; limited device support No
- Use Cases
- Web-based video delivery, HTML5 video embedding, YouTube No
Why Choose our AVI to WebM Converter?
100% Free and Online
Convert AVI files to WebM without software installation.
Fast Conversion
Our powerful servers ensure quick results every time.
High-Quality Output
Preserve video quality while optimizing file size.
Device Compatibility
Works seamlessly on desktops, tablets, and mobile devices.
Secure and Private
Your files are safe with us—deleted automatically after conversion.
Cloud-Based Convenience
No software downloads or installations needed.
Start Streaming with Gumlet
Once you've converted your AVI file to WebM, why stop there? Gumlet helps you host, secure, and stream your videos effortlessly. Simply, follow the steps below:
Video Upload
Automate video uploads from your device or cloud storage at scale with integrations and APIs. Upload multiple videos in parallel without getting stuck in upload queues.

Video Processing
Enjoy instant video start times, exceptional quality, and buffer-free streaming. Generate unlimited subtitles in multiple languages and optimize your streaming with latest codecs.

Video Sharing
Generate playback URLs instantly and embed codes for easy publishing. Our global Multi-CDN network ensures super-responsive video streaming with instant start times every time.







