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MP4 to WebM Converter

Easily convert your MP4 (.mp4) files to the web-friendly WebM (.webm) format. Our online tool provides fast, high-quality conversions with excellent compression, all processed securely right in your browser.

Drop your MP4 file here

or click to browse your files

Maximum file size: 100MB
(no limit for pro users)

How to Convert MP4 to WebM

We try to keep things simple. We have already optimised the settings for you.

  1. 1Upload your MP4 video using the button above.
  2. 2Click "Convert to WebM" to process the video.
  3. 3Download your new WebM file, click "Download WebM".

Benefits of WebM

  • Open-source and royalty-free.
  • Smaller file sizes for streaming.
  • Supported in modern browsers.
  • Ideal for embedding in websites.
  • Transparency support.

MP4 vs. WebM: Key Differences

FeatureMP4WebM
CompressionHighVery High (optimized for web)
CompatibilityAlmost universalBest in modern browsers
LicensingMay require royaltiesFree & open-source

FAQ: MP4 to WebM Converter

Here are the most common questions about converting MP4 videos to WebM format.

Can I convert MP4 to WebM without losing quality?

Yes, WebM supports high-quality video output. To reduce file size, some compression is applied, but our converter is optimized to preserve the best possible quality during the process.

Is WebM better than MP4 for websites?

In many cases, yes. WebM is designed for the web; it offers smaller file sizes, faster loading, and efficient streaming, while being supported in most modern browsers. MP4 remains the most universally compatible format, but WebM is ideal for embedding videos online.

Does WebM work on all devices?

WebM works seamlessly in major browsers like Chrome, Firefox, Edge, and Safari (latest versions). On some older devices or outdated browsers, MP4 may still provide better compatibility.

Is this MP4 to WebM converter free?

Yes, the basic converter is completely free to use with no hidden costs. Free users can convert videos up to 100MB in size. Pro users enjoy unlimited file sizes and the ability to process multiple videos at once.

Do I need to install software to convert MP4 to WebM?

No installation is required. This tool runs directly in your browser, just upload your MP4 file, click convert, and download your WebM video.

Choose Your Plan

Start for free without an account, or upgrade to Pro for unlimited processing power.

Free

$0/month

Perfect for occasional use

No account required

Video files up to 100MB
Image files up to 10MB
One file at a time
Local processing (private)
Unlimited file sizes
Batch processing
All access

Pro

$19.99/month

For power users and professionals

Cancel anytime • Account required

Unlimited file sizes
Process multiple files in parallel
Local processing (private) - server fallback if required
Advanced codec support (like AV1)
Multi-threaded processing
Pro access to all converters and compressors
Priority support for new converter requests
Create Account & Upgrade
MP4 to WebM Converter Online - Free & Fast