Reduce video file size while maintaining quality
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your WEBM file
Select quality level and target size
Get your smaller WEBM file instantly
WebM Video Format
WebM is an open, royalty-free video format developed by Google, optimized for web use. It uses VP9 or AV1 for video and Opus for audio, offering efficient compression ideal for HTML5 video and web applications.
Common reasons to reduce WEBM file size
Compress WEBM videos to fit email attachment limits and messaging apps.
Reduce WEBM file sizes by up to 80% while maintaining visual quality.
Optimize WEBM for faster upload to YouTube, Vimeo, and social platforms.
Create lightweight WEBM files that stream smoothly on mobile networks.
Your videos never leave your device. All compression happens locally in your browser.
Hardware-accelerated compression powered by WebCodecs and WebAssembly.
Compress MP4, MOV, AVI, MKV, WebM and more video formats.