Video to WebM Converter
Convert Video files including MP4, MOV, AVI, MKV, MPEG, M4V, 3GP, WMV, TS, M2TS, FLV, and VOB to WebM for browsers, websites, web apps, and online publishing.
Drop your Video files here
Up to 250MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
- 101
Upload your video files
Drag and drop or select video files from your device. You can upload multiple files at once.
- 202
Configure Output
Choose the video quality and keep the source dimensions or reduce the output size proportionally.
- 303
Download WebM files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert Video to WebM?
Video is a supported video file containing moving pictures and, where present, an audio track. Converting it to WebM creates an open web video format designed for modern browsers, websites, and online applications, ready for workflows that use the destination format.
WebM plays in current Chrome, Edge, Firefox, and Safari, plus VLC and compatible video-editing tools.
Related video converters
Frequently Asked Questions
Why convert Video to WebM?
The video converter accepts common files from phones, cameras, computers, editors, downloads, and media libraries. WebM is designed for browser playback, websites, web apps, learning platforms, and open web projects.
What does Crest Convert create from my Video file?
Crest Convert creates a standard WebM video with a widely compatible video stream and includes the first audio track when one is present.
Can I adjust the WebM quality?
Yes. Choose the visual quality before converting your Video file to balance detail and output size for your intended use.
Can I resize the converted WebM video?
Yes. Use the output size slider to retain the source dimensions or reduce the width and height proportionally while keeping the original shape.
Can I batch convert Video to WebM?
Yes. Add several Video videos, convert them together, and download each completed WebM file when it is ready.
How is my Video video processed?
Your Video file is transferred over an encrypted connection, converted securely to WebM, and automatically deleted shortly after processing. No account is required.