AVI to WEBM Converter

Convert AVI to WEBM format online for free. No account required.
Upload your fileClick Choose File button to get started or drag and drop files to upload.
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What is AVI?

AVI (Audio Video Interleave) is a multimedia container developed by Microsoft in 1992 to work with its Video for Windows software. An AVI file can contain both audio and video tracks. AVI files also have higher quality than MP4 files, but they’re larger.

The AVI video file container isn’t used as often as it used to be because it’s not ideal for sharing or streaming video. AVI files also can’t support 4K or UHD resolution. You can play AVI videos with Windows Media Player, VLC, and several other AVI players like JetVideo and KM Player.

What is WEBM?

WEBM is an open, royalty-free video file format designed as an alternative to HTML5 video and audio elements. As you can probably guess from the name, WEBM files are primarily intended for use on the web. It’s highly compatible with most modern web browsers — but not as compatible with as many devices as MP4 is.

WEBM is the ideal format for streaming videos online because it has high-quality playback even on devices with lower technical capabilities. The quality of a WEBM video isn’t as high as the quality of an MP4 video, though.

Frequently Asked Questions

How to convert AVI to WEBM online?

  1. Choose a AVI file from your computer or drag and drop it into Restream’s video converter.
  2. Select Convert and the converter will start processing.
  3. Download your WEBM file when it’s ready.

Will my file lose quality when I convert AVI to WEBM?

Depending on which file type you’re starting with, you might lose some quality when converting to WEBM, since it’s a lossy file format. Lossy files lose some data during compression, which can decrease the overall audio quality.

Is WEBM better than AVI?

WEBM files are more compressed and smaller in size than AVI, but AVI files are higher in quality.

Supported file formats


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