WebM File Converter

This converter tool allows the conversion from many formats to WebM. Additionally, you can convert WebM to other formats. Below are the format options supported.
Select File:

By using this service, you agree to our Terms of Use.

How to convert to WebM?

  1. Click the Browse button and choose the video file you want to convert to WebM.
  2. Click Upload & Convert to begin converting your video.
  3. Once the conversion is complete, download your new WebM file.

Convert WebM To

WebM To FLAC

WebM To MP3

WebM To MP4

WebM To MOV

WebM To WAV

Convert To WebM

MOV To WebM

MP4 To WebM

About WebM

WebM is a royalty-free, open source multimedia format developed by Google. It was primarily designed for use on the web. It typically uses the VP8 or VP9 video codec and the Vorbis or Opus audio codec all wrapped up in a Matroska-based container. The format is optimized for efficient streaming and offers smaller file sizes while maintaining high visual and audio quality across browsers and devices.

When was WebM created?

WebM was announced by Google in May 2010. The format grew out of Google’s acquisition of On2 Technologies earlier that year, which gave Google the VP8 video codec. Google then open-sourced VP8 and built WebM around it as a royalty-free alternative for web video.

What codecs does WebM support?

It supports VP8, VP9, and AV1 for video, and Vorbis or Opus for audio.

Fun Facts About WebM

– YouTube uses WebM heavily to save bandwidth while keeping high video quality.

– AV1 WebM videos can reduce data usage by 30–50% compared to older codecs.

More Information

https://en.wikipedia.org/wiki/WebM
https://www.loc.gov/preservation/digital/formats/fdd/fdd000518.shtml

Frequently Asked Questions

What happens to my files after I upload them?

Uploaded files are used only to complete your conversion and are securely deleted immediately afterward. Your converted file remains available for download for 24 hours, after which it is also securely deleted.

What is the largest video file size I can upload?

2048 MB (2 GB) is the largest file size we accept at the moment.

Why won’t my WebM video play on my iPhone or TV?

Apple iOS and most TV operating systems lack native support for the WebM container and its VP8 and VP9 video codecs. Their built-in players are designed around formats like MP4 and MOV, so they cannot decode WebM files directly. Converting your WebM file to MP4 resolves the issue on virtually every device.

Why do people choose Alpha1Convert?

We are secure

All of your uploads are encrypted in transit and stored on protected servers while your conversion runs. Files are never shared, never used for anything except your conversion, and are removed on the schedule described in our FAQ above.

It's the best price, free.

Our service delivers high quality results and is completely free to use. Free doesn’t mean you should settle for a subpar experience. Every user receives professional-grade conversions.

Speedy Uploads and Downloads

We won’t slow you down when it comes to uploading or downloading your files, unlike other services that make the process drag on. Our platform is built for speed so you can get your files where they need to be quickly and without frustration.

No Software to install.

There’s no software to download or install on your computer. Just upload your file and begin converting instantly.