1
Upload MP42
Review File3
Convert to WEBM4
Download WEBM1
Upload MP4Choose the MP4 file you want to convert.
2
Review File
3
Convert to WEBM
4
Download WEBM
video Converter• 100% Client-Side
MP4 to WEBM Converter
Transcode MP4 to WebM (VP8/VP9) for web background videos and HTML5 players.
mp4→webm
Drop MP4 file(s) here, or browse
Supports single or multiple batch conversion
Private by Design
Your files are processed directly on your device using WebAssembly, HTML5 Canvas, and client-side runtimes.
No server upload No cloud copy 100% local processing
How To Convert
How to Convert MP4 to WEBM
Step 1
Upload MP4
Choose the MP4 file you want to convert.
Step 2
Review File
Check the file information and conversion options.
Step 3
Convert to WEBM
Start the local MP4 to WEBM conversion.
Step 4
Download WEBM
Download your converted WEBM file.
Frequently Asked Questions
Questions about MP4 to WEBM Conversion
Why use WebM?
WebM is royalty-free, opensource, and highly optimized for HTML5 web browsers.
Related File Converters
Other popular conversions for video files
webmmp4
video
WEBM to MP4
Convert WebM recordings into universally compatible MP4 videos.
Runs on your device
Convert mp4mp3
video
MP4 to MP3
Extract audio stream from MP4 videos into high-quality MP3.
Runs on your device
Convert movmp4
video
MOV to MP4
Convert Apple QuickTime MOV movies into standard MP4 for Windows, Android, and web.
Runs on your device
Convert