Convert MP4 to WEBM Online, Free
Convert videos between formats instantly with consistent, high-quality output
Advanced controls • Quick preset • Fast uploads
How It Works
Three simple steps to get your file
Upload video
MP4, MOV, MKV & more
Choose output format
Customize quality & resolution
Export & share
Ready to use anywhere
Why choose our video converter?
From incompatible formats to universal playback instantly.
Professional video conversion made simple
All the formats you need, none of the complexity.
Any format supported
If it plays, we can convert it. Universal input, clean output.
Quality control
Simple presets
Resolution presets
From 4K to 360p
Platform presets
One-click for YouTube, Instagram, Twitter, TikTok.
Subtitle handling
Keep, burn-in, or remove subtitle tracks.
Auto orientation
Fixes rotation
FPS control
60, 30, 24 FPS
Audio options
Keep or remove
Your files are in safe hands
Files are processed securely and never stored or shared.
"We process your work in isolated environments. We never access, analyze, or share your content."
No account required
Start using immediately, zero friction
No file sharing
Your content stays 100% yours
Auto deleted in 5 hours
Files wiped from our servers
Frequently Asked Questions
Everything you need to know about trimming videos online
How do I convert MP4 to WEBM online for free?
- Simply upload your MP4 file. Select WEBM as your output format, adjust any optional settings, and click convert. Your new WEBM file will be ready to download instantly.
Will converting MP4 to WEBM reduce the quality?
- Our converter uses advanced algorithms to maintain the highest possible quality during the MP4 to WEBM transition. While changing file formats can sometimes alter compression, we ensure your final output remains crisp and highly usable.
Do I need to download software to change MP4 to WEBM?
- No software installation or app download is required. Our free MP4 to WEBM converter works entirely in your web browser. You can process files directly on your Windows PC, Mac, iPhone, or Android device.
Does this free MP4 to WEBM converter add a watermark?
- Absolutely not. Your converted WEBM files are completely free of watermarks, ensuring a clean and professional output ready for sharing, publishing, or personal use.
Is it safe to convert private MP4 files online?
- Yes, All files are processed over a secure connection and are automatically and permanently deleted from our servers shortly after your conversion is complete. We never store, view, or share your data.