MP4WEBM

Convert MP4 to WEBM

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About MP4 to WebM Conversion

WebM is Google's open video format designed for the web. Converting MP4 to WebM reduces file size for faster loading on websites and is natively supported by Chrome, Firefox, and Edge browsers.

How It Works

  1. Upload your MP4 video
  2. Click Convert to encode as WebM
  3. Download your optimized WebM file

Key Features

  • Smaller file size for web hosting
  • Open format — no licensing fees
  • Supported by all modern browsers
  • Ideal for HTML5 video elements

Frequently Asked Questions

What is WebM and why should I use it?
WebM is Google's open video format designed for the web. It is supported natively by Chrome, Firefox, and Edge, and typically produces smaller files than MP4 — making it ideal for website video hosting.
Is WebM smaller than MP4?
Yes, typically 20–30% smaller at the same visual quality. This makes WebM useful for websites where page speed is important.
Does Safari support WebM?
Safari has limited WebM support — it works in Safari 16+ on macOS Ventura but not on older versions or iOS Safari. For maximum compatibility include both MP4 and WebM using the HTML5 video element.
Can I use WebM for YouTube or social media?
YouTube accepts WebM. However, Instagram, TikTok, and most other social media platforms only accept MP4. Use WebM for web hosting and MP4 for social media uploads.

Learn more: Complete Video Conversion Guide