Do you need to upload your videos online but find that your MKV files do not play in browsers? Do not worry. Many users face this problem and need a simple solution. The easiest way is to convert MKV to WebM, since browsers and video-sharing sites widely support WebM. We want to help you, so here you will see five reliable methods, both online and offline, for you to try.
Part 1. WebM vs. MKV – Why You Should Choose WebM
When choosing a video format, it is important to pick one that works well for web and streaming.
In the WebM vs. MKV comparison, WebM is a modern format designed for online use. It is lightweight and loads faster than MKV. WebM also uses efficient codecs like VP8, VP9, and AV1. It means it compresses videos without losing much clarity.
MKV is more flexible for storing high-quality files, but it is larger and not as web-friendly. If you want videos that play smoothly online and save space, WebM is the better choice.
Part 2. Convert MKV to WebM in High Quality on Windows and Mac
Converting MKV to WebM in high quality is easier than ever with Tipard Video Converter Ultimate. It can transcode H.264 or H.265 to VP9 or AV1. It highly compresses video size without losing clarity.
This program also supports 1080p and 4K resolutions for sharp playback. You can convert many videos at once with its batch conversion feature. In addition, it offers video editing features to crop, add filters, or watermarks before conversion.
- Convert over 500 video and audio formats easily.
- Preserve or enhance original video and audio clarity.
- Achieve up to 120× faster conversion speed.
- Adjust resolution, frame rate, and other output settings freely.
- Add custom audio tracks and subtitles to your videos.
Step 1 You must download and install Tipard Video Converter Ultimate on your Windows or Mac computer to have complete access to it.
Step 2 Open the program once it is ready. Next, add your MKV video. You can press the Add Files button at the upper left. Or, for a faster way, you can just drag and drop them in the center.
Step 3 After that, look for the Profile menu in the right corner of your video. Click it to open the format list. Head to the Video section and choose WebM. On the right side, you can pick Same as Source, which keeps the original clarity and settings. Or, you can choose presets, like 4K Video, HD 1080P, AV1 WebM, etc.
Step 4 Tipard Video Converter Ultimate also includes video editing tools. If you want, you can improve your video before converting. Open the Edit option to crop unwanted parts, fix the video orientation, apply a filter, add a watermark, and more.
Step 5 Once you are happy with everything, click the Convert All button at the bottom right. Tipard Video Converter Ultimate will now convert MKV to WebM in high quality. If you uploaded many videos, it will convert everything at once!
Part 3. Convert MKV to WebM with FFmpeg
FFmpeg is a text-based program made for serious media work. You can convert MKV to WebM using command lines, and you can also merge MKV files easily with it. There are no buttons or menus. You must type the right code in Command Prompt. It works fast and gives clean results. It is better suited for skilled users than beginners.
Step 1 Download and install FFmpeg on your computer. After that, please wait until the setup finishes and works properly.
Step 2 Open the bin folder inside the FFmpeg folder. Next, copy and paste your MKV file into this folder.
Step 3 Open Command Prompt. Then type c:\ffmpeg\bin> and press Enter to set the correct path.
Step 4 Enter this command to convert MKV to WebM: ffmpeg -i test.mkv -c:v libvpx -crf 15 -b:v 1M -c:a libvorbis test.webm.
Step 5 Once done, check the same folder. You will see the new WebM file there.
Part 4. Convert MKV to WebM with HandBrake
HandBrake is a free and open-source video converter for Windows, Mac, and Linux. It helps you convert MKV to WebM with a clear screen and simple steps. It supports many formats and batch conversion. You can also add subtitles or resize videos.
Step 1 Go to the official HandBrake website. Then, please download and install the program on your computer.
Step 2 Open HandBrake and click File or drag your MKV video into the main interface.
Step 3 Under the Summary tab, open the Format menu, and choose WebM from the list.
Step 4 Hit Browse and pick a folder to save the WebM file.
Step 5 Finally, click Start Encode, and HandBrake will now convert MKV to WebM.
Part 5. Convert MKV to WebM with VLC
You can play MKV using VLC and convert it to WebM without extra tools. It supports many formats and runs on most devices. The conversion steps are simple, which is perfect for first-time users. You can also rotate videos or remove audio if you want. It makes VLC a useful all-in-one media program.
Step 1 Download and install VLC on your desktop. Then, open the program.
Step 2 Click Media at the top. Choose Convert / Save to open the media display.
Step 3 Click Add to import your MKV file. Then, click Convert / Save again.
Step 4 Open the Profile menu and select Video - VP80 + Vorbis (WebM).
Step 5 Select a destination folder and click Start to convert MKV to WebM.
Part 6. Convert MKV to WebM Free Online
CloudConvert is a web-based MKV to WebM converter that runs in your browser. It lets you convert MKV to WebM without installing anything. You can add video files from your device or cloud storage. It also allows basic settings, like quality and size. This method works best for quick and easy online conversion.
Step 1 Visit the CloudConvert website using any web browser.
Step 2 Click Select Files to upload your MKV video. You can also use Google Drive or a URL.
Step 3 Open the Convert to menu and choose WEBM under the Video section.
Step 4 Press the Wrench button if you want to change the video size or trim the clip. After that, click Okay to save changes.
Step 5 For the last step, press Convert. After it finishes, click Download to save the WebM file.
Conclusion
The benefits of converting MKV to WebM include smaller file size, smooth playback, and a web-friendly format. With Tipard Video Converter Ultimate, you can do this in high clarity on both Windows and Mac. For future video conversion needs, you can rely on it too, as it supports numerous popular and rare input and output formats.




