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Supports MP4, WebM, AVI, MOV and more

Quick Guide

Upload Video

Upload your video file (supports MP4, AVI, MOV, MKV and more)

Auto Convert

Click convert and our tool will transform your video to WebM

Download WebM

Download your converted WebM video with preserved quality

Convert Any Video to WebM Format

WebM is an open, royalty-free media file format designed for the web. Developed by Google, it provides high-quality video compression optimized for online streaming and web playback with excellent browser support.

Our browser-based WebM converter ensures complete privacy by processing your videos locally. No file uploads to servers, no waiting in queues, and no privacy concerns - your videos remain on your device throughout the conversion process.

Why Convert to WebM?

Web Optimized

Specifically designed for web use with excellent compression efficiency and fast loading times. Perfect for websites and online platforms.

Open Source

Completely open and royalty-free format, ensuring long-term compatibility and freedom from licensing restrictions.

High Quality

Uses VP8/VP9 video codecs and Vorbis/Opus audio codecs to deliver excellent quality at smaller file sizes than many alternatives.

Browser Support

Native support in all major modern browsers including Chrome, Firefox, Opera, and Edge. Perfect for HTML5 video embedding.

Supported Input Formats

MP4

AVI

MOV

MKV

WMV

FLV

3GP

And more

Frequently Asked Questions

Is this WebM converter completely free?

Yes, absolutely! Convert unlimited videos to WebM with no watermarks, no time limits, and no hidden costs.

Are my videos private and secure during conversion?

Completely. All video conversion happens locally in your browser using WebAssembly. Your videos never get uploaded to our servers.

Why should I choose WebM format?

WebM is perfect for web use with superior compression, fast loading times, and native browser support. It's completely open-source and royalty-free.

What video formats can I convert to WebM?

We support all major video formats including MP4, AVI, MOV, MKV, WMV, FLV, 3GP, and many more. If your browser can play it, we can convert it.

Will converting to WebM preserve video quality?

Yes! WebM uses advanced VP8/VP9 codecs that deliver excellent quality at smaller file sizes, perfect for web streaming and online content.

Can I use this on my mobile device?

Yes! The converter works on any device with a modern web browser, including smartphones and tablets. WebM is widely supported across all platforms.

Is there a file size limit for conversion?

The only limit is your device's available memory. WebM's efficient compression means faster processing and smaller output files.

Do I need to create an account?

No account needed! Just visit the page and start converting. No registration, no email required - just instant WebM conversion.