Merge WebM Files Online — Free WebM Combiner

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?

Visit our Help Center

Step

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

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

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.

Explore further

4.8 5,300 reviews

A most user-friendly, easy-to-manage app, and all online, so there is no downloading or anything complicated - and most of it is FREE too! It has so many features for creating video and audio projects, with clear instructions. Amazing.

Elaine

I am delighted with your website's video editing and image editing tools! The variety of features available is impressive, and the user-friendly interface makes the editing process a breeze. Keep up the fantastic work! Highly recommended!

Hamdy El Shimi

Clideo is a one-stop shop for your creative needs. It is the best because of various reasons. 1– easy to use. 2– perfect tools to work in videos and audio. 3– they are not greedy for money (this is the best thing), very genuine pricing plans for professionals.

Vishal Kukreti

Clideo.com is an awesome video-making site. I really love this all-in-one site for creating videos and all of its awesome features! There’s so much you can do for free which I really like and appreciate! Thanks, Clideo.com!

Dan Gersalia

The best video editor. I've already tried out a lot of video editors, but this is the best one. It has everything in there, unlike others that need a lot of other websites to do different things. Thank you so much.

Lucas Low

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.

Download on the App Store

Resources

Ready to merge your videos?

Let's do it with our online video joiner!

Combine WebM Files

Merge WebM files online and for free

Completely Online

Add a Great Song

Video Combining Options

What is a WebM joiner

How to combine WebM files

Explore further

Get Clideo Video Editor App for iPhone

Resources