How to Compress WebM Video Files with High Quality (No Size Limit)

How to Compress WebM Video Files with High Quality (No Size Limit)

Selena Thomas

September 28, 2021 15:10Posted by to Edit Video

Question: I have a few overlays and camera frames that are all animated. However, a few of the WebM files are oversized and consume my memory. Some smaller WebM files make my CPU staying at a steady 15-16%. I’ve tried a few Free Online Web Compressor services, but they all make the quality atrocious even if I keep the same bit and resolution. Is there any good way to compress WebM files without making them complete pixel blocks like the online converters do? - Question Posted by a Reddit User

Editor Reply: Good question asked. Online tools and desktop WebM video compressors work for different scenarios. For small and quick workloads, using a free online video compressor will be able to help you swiftly complete your task. However, larger projects generally require more professional-level WebM compressor software to ensure reliability and stability. We will quickly go over the choices available for you in the following passages and compare the pros and cons of each option.

Compress WebM

Part 1. How to Compress WebM with High Quality

What usually happens is, you need to upload your media files to a website that puts a cap on the upload file size. You want to shrink your WebM file size as much as you possibly could, but hesitate to make any quality loss. Using carefully crafted, professional-level desktop software could be a wise choice. Blu-ray Master Video Converter Ultimate is designed for your exact use case. It simply works. Its features cover almost everything you would need to create videos. You could easily get results within several clicks.

Other features also include:

How to Compress WebM Videos with Professional Video Compressor

Step 1

Import Videos to Compress

Download and install Video Converter Ultimate. Open the program, on the main screen, locate the Toolbox tab on the ribbon. Choose the Video Compressor option and add the videos to your project. Alternatively, you could drag and drop files towards your window to import WebM video files for compression.

Select Collage

Step 2

Pre-Compression Set Up

Choose the size you wish to resize your WebM video in this step. Slide the Size bar to choose the exact compression rate you wish for, and select the Format option for more codecs and resolutions settings.

Edit Each Photo Split Screen

Step 3

Compress Video

Finally, click on the Compress button to save the video. Please wait for a short time and your compressed video would be ready. Now, you are free to share the video with your friends without worrying about the file size!

Export Split Screen Video File

Part 2. How to Compress WebM Free Online

If you insist on using an online video compressor, look no further than the Blu-ray Master Free Online Video Compressor which gives you a simple touch to compress your WebM videos. You do not need a high-end video card to compress large videos fast, just upload to the website portal and the compressor will do the rest of the job for you. Now we’ll introduce you to how to use the free online WebM compressor:

Step 1

Install Launcher

Visit the homepage of the free online WebM compressor in your web browser. Next, you need to install a launcher to proceed. Click on the Add Files to Compress button and follow the instructions on the screen. It would take only a minute to complete.

Add Files to Compress

Step 2

Upload Video and Configure Parameters

After installing the launcher, upload the video you wish to compress to the website. You could also change the output video size, format, resolution as well as video bitrates.

Adjust Compression Settings

Step 3

Compress Video

Now, click on the Compress button and get a cup of coffee. Your compressed WebM video would soon be ready to download.

Compression Succeeded

Part 3. What’s the Difference

Free Online Video Compressor Video Converter Ultimate
Compress Video YES YES
Compress 4K Video NO YES
Convert Video NO YES
Convert Audio NO YES
Safe to Use YES YES
Edit Video NO NO
Internet Connection Requirement YES NO
Convert DVD NO YES
Output Video Formats MP4, MOV, MKV, AVI, M4V, FLV, WMV, VOB, MPG, 3GP, etc. Over 500 formats

Part 4. FAQs about WebM Compressors

1. Why are WebM files so much larger than MP4?

This might be because of the misconfiguration during WebM encoding process. If you choose the "high-quality" option, then the encoder will spend more bits per second on the video. Use a WebM compressor to fix your issue.

2. Can Windows Media Player play WebM?

No. Windows Media Player is not the best WebM player to play WebM files without having extra plugins. The player is incapable of decoding the WebM container for both the video and audio content.

3. How can I convert WebM to MP4 format?

Use professional software such as VLC Player. It is one of the most commonly used media software available. Moreover, it is free and open-source.


As we have learned, always choose the best fit tool for your workflow before starting your project. Both free online WebM compressor and desktop professional compressor have their advantages and disadvantages. The correct toolkit would optimize your user experience and boost your productivity greatly.

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