01
Add your MOV
Drop the QuickTime file on the panel, choose it from disk, or open it from Your Library. Wait until the name and length appear.
MOV to WEBM
Turn QuickTime and iPhone MOV files into WEBM for browser-first playback and web projects — right in your browser.
Drop a MOV file here
or click to choose from your computer
MOV · MP4 · M4V · QuickTime
Your file will be converted to WEBM. Click Convert when ready.
Converting…
Local processing in your browser · Files are not uploaded to our servers
About MOV to WEBM conversion
MOV is Apple’s QuickTime container. WEBM is a web-oriented container commonly used with HTML5 video, browser demos, and sites that prefer open web formats. Converting MOV to WEBM helps when you need a clip that embeds cleanly on the web without relying on QuickTime.
Sound Booster converts in the browser: add a MOV, encode to WEBM, then download or save to Your Library. The flow is designed so everyday files stay on your device for this step.
Use WEBM for browser previews, web portfolios, and tools that list WEBM next to MP4. For social networks and many mobile apps, MP4 remains the safer default. Keep the original MOV if you need an Apple-native master.
Large or long recordings need enough free memory in the tab. If encoding stalls, try a shorter segment or convert via the general Video Converter.
How to convert MOV to WEBM
02
Convert to WEBM
Click Convert to WEBM and keep the tab open while the browser encodes. The first run may load a small local encoder.
03
Download or save
Save the WEBM file to your device, or store it in Your Library for later tools on Sound Booster.
MOV and MP4 formats
What is a MOV file?
MOV is a multimedia container tied to QuickTime. It carries video, audio, and metadata from iPhones, iPads, and many Mac apps. Outside Apple’s ecosystem it may need conversion before every player and upload form accepts it.
What is a WEBM file?
WEBM is a media container designed for the web. Browsers often play it with HTML5 video elements. It typically pairs with VP8/VP9-style video and open audio codecs, making it a practical choice for web-first delivery rather than Apple-only workflows.
What people use it for
HTML5 video embeds
Prepare a MOV recording so it plays in a web page without QuickTime plugins or Apple-only assumptions.
Browser demos and portfolios
Share product or design captures in a format web browsers expect for in-page previews and documentation sites.
Open-format pipelines
Move off proprietary QuickTime when a project prefers web-native containers for delivery and review.
When a tool lists WEBM
Some online editors and converters accept WEBM alongside MP4 — convert once to match the form without re-exporting from the phone.
Frequently asked questions
Is WEBM better than MP4?
For many websites WEBM works well; for phones and social uploads MP4 is still more universal. Choose based on the destination.
Do my files leave this device?
No. Conversion is designed to run in the browser. Everyday files are not uploaded to Sound Booster servers for this step.
Is MOV to WEBM free?
Yes on this page, without a mandatory account. Browser limits still apply to very large files.
Can I convert iPhone MOV to WEBM?
Often yes if the browser can decode the clip and memory allows. Very long 4K videos may need a shorter segment.
Why did conversion fail?
Codec support and memory vary by browser. Try Chrome or Edge, keep the tab open, and retry with a smaller file if needed.