WebM to AVI · Free

Convert WebM to AVI

Turn your WebM file into an AVI that plays where you need it, right in your browser.

Free to start
In your browser
Up to 500 MB

How it works

How to convert WebM to AVI

Upload your WebM file
Drag and drop a WebM file, or click to browse. Up to 500 MB, and nothing is installed.
Confirm AVI as the output
AVI is already selected, so there is nothing to configure. Switch to another format in the panel if WebM needs to go somewhere else.
Convert and download
We convert the WebM on our servers, usually in under a minute. Create a free account to download the AVI, or keep editing it in REQO.

Why convert WebM to AVI?

WebM is the open, royalty-free container built for the web. It is what most browser-based screen recorders produce, and VP9 packs the same picture into noticeably less data than H.264.

The practical problem: Most editing software, phones and TVs will not open a WebM file. Social platforms and messaging apps frequently reject the extension outright. Safari and older Apple devices handle WebM inconsistently.

AVI solves that. Widely readable by desktop players from the same era.

Container

WebMWebM (Matroska-based)

AVIAudio Video Interleave (Microsoft)

Typical codecs

WebMVP8 / VP9 / AV1 video, Opus audio

AVIDivX, Xvid, MJPEG and other legacy codecs

Best for

WebMWeb embeds and browser recordings

AVIOpening archive footage from the 2000s

Plays on

WebMChrome, Firefox and Edge; hit and miss elsewhere

AVIDesktop players with the right codec pack

File size

WebMVery small at the same quality

AVIVery large for the quality

Feature	WebM	AVI
Container	WebM (Matroska-based)	Audio Video Interleave (Microsoft)
Typical codecs	VP8 / VP9 / AV1 video, Opus audio	DivX, Xvid, MJPEG and other legacy codecs
Best for	Web embeds and browser recordings	Opening archive footage from the 2000s
Plays on	Chrome, Firefox and Edge; hit and miss elsewhere	Desktop players with the right codec pack
File size	Very small at the same quality	Very large for the quality

FAQ

WebM to AVI questions

Is the WebM to AVI converter free?

Yes. Convert and preview the result for free, then create a free account to download it. There is no per-file charge and no watermark on the AVI itself beyond the free-plan badge.

Do I need to install any software?

No. The conversion runs on our servers and the whole flow happens in your browser, so it works the same on Windows, macOS, Linux, iPhone and Android. Nothing to install at either end. Where WebM plays: Chrome, Firefox and Edge; hit and miss elsewhere. Where the AVI you get back plays: Desktop players with the right codec pack.

Does converting WebM to AVI reduce the quality?

Converting re-encodes the video, so it is not bit-for-bit identical. We encode at a high quality target, which keeps the result visually indistinguishable from the WebM on normal viewing. What changes is the container and the codec. AVI holds: DivX, Xvid, MJPEG and other legacy codecs. Converting the same file back and forth repeatedly will eventually show, so keep your original.

How large a file can I convert?

Up to 500 MB per file, which is more footage in some formats than others. WebM: Very small at the same quality. AVI coming back: Very large for the quality. For anything bigger, trim or compress it first, both are free tools here.

Is my file kept private?

Your upload is processed and then held only as long as your project needs it. Nothing is published, indexed or shared unless you create a share link yourself.

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