Convert MKV to WEBM Online Free
Convert MKV to WEBM instantly in your browser. No uploads needed - your files stay private on your device.
drag & drop files here
or click to browse
images, videos, audio, documents - all processed locally
Why convert MKV to WEBM?
- ✓WEBM may offer better compatibility with your target platform
- ✓Optimize video for web streaming or social media
- ✓Reduce file size while maintaining acceptable quality
- ✓Prepare video for specific devices or players
How to convert MKV to WEBM
Upload your file
Drag and drop your MKV file onto the converter, or click to browse your files.
Select WEBM as output
Choose WEBM from the format dropdown. The converter will automatically detect your file type.
Convert instantly
Your file is processed entirely in your browser using WebAssembly. No upload needed.
Download your file
Click the download button to save your converted WEBM file.
About MKV format
MKV (Matroska) is a flexible, open-standard container format that can hold virtually unlimited video, audio, and subtitle tracks. Popular for high-definition video distribution, MKV supports modern codecs and features like chapters and metadata. It's the format of choice for video enthusiasts.
Pros
- +Supports virtually any codec
- +Multiple audio and subtitle tracks
- +Chapter and metadata support
Cons
- -Limited device playback support
- -Not suitable for streaming
- -May require codec packs on some systems
About WEBM format
WebM is an open, royalty-free video format designed specifically for the web. It uses VP8/VP9 video codecs and Vorbis/Opus audio, offering efficient compression for streaming. WebM is supported by all modern browsers and is the preferred format for HTML5 video when licensing concerns matter.
Pros
- +Royalty-free and open source
- +Excellent web browser support
- +Efficient compression for streaming
Cons
- -Less device support than MP4
- -Not widely supported on iOS
- -Limited editing software support