Combine WebM Files

Merge WebM files online and for free

Completely Online

There is no need to download and install any app to your phone, tablet or computer — use the online Clideo tools instead.

Add a Great Song

To complete the atmosphere of your video, add music to the project. Don't forget to adjust its length and volume.

Video Combining Options

Select from several resolutions, formats, and crop options to create one amazing video!

What is a WebM joiner

WebM is an open container format for multimedia files that was first presented by Google in 2010. It supports VP8 and VP9 video, Vorbis and Opus audio.

Clideo's WebM Merger is able to combine videos, pictures and audio of different formats. It also lets you adjust the final result and save it in any extension.

Our service is online, it works on any device and in any browser with no installations needed. Each file that you upload can be up to 500 MB for free.

How to combine WebM files

Need help?
Step
1
Upload WebM and other files
To add files from your device, click "Choose files". Note that you can add all the needed content at once. To upload a video or an image stored online, click on the arrow on the right side and select the option you like.
Step
2
Join WebM files together
Add more files if necessary by using the button at the top right. Then rearrange them. Select an aspect ratio among the four available ones. Crop the frame or add borders. You're also able to add an audio file, cut it, and set its volume. Once you're done, select an output format on the bottom left and click "Export".
Step
3
Download the result
The compilation is ready to be saved to your personal device or cloud storage. If you want to make some changes, click "Edit" — don't worry, this button won't make you start over.
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Get Clideo Video Editor App for iPhone

Download the Clideo Video Editor App to your iPhone to create your own video and edit it in any way: combine video, images, text, and music in the multi-track timeline.

Ready to merge your videos?
Let's do it with our online video joiner!