Free Online Converter
Convert MP4 to WEBM
Free online MPEG-4 Part 14 to WebM converter. Fast, secure processing directly in your browser.
How to Convert MP4 to WEBM
- Click or drag your MP4 file into the upload area above
- Wait for the file to be loaded (happens instantly in your browser)
- Click the "Convert File" button
- Your processed WEBM file will automatically download
Why Convert MP4 to WEBM?
WebM is an open, royalty-free video format designed for the web. It provides excellent quality at smaller file sizes, making it ideal for online video.
Key Features
100% FreeNo subscription, no hidden fees, no limits
Privacy FirstFiles never leave your device
Fast ProcessingInstant browser-based conversion
No InstallationWorks directly in your browser
High QualityMaintains quality during conversion
SecureClient-side processing only
About MP4 and WEBM Formats
MP4 (MPEG-4 Part 14)
MP4 is the most widely supported video format, offering excellent compression and quality. Compatible with virtually all devices and platforms.
WEBM (WebM)
WebM is an open video format optimized for the web. It uses VP8/VP9 codecs and offers excellent compression for online streaming.