Choose a MOV
Select a MOV file up to 250 MB. We inspect the file locally before processing.
Convert MOV to MP4 Online
Turn a MOV video into a broadly compatible MP4. Processing happens on your device, so your video never needs to leave your browser.
MOV converter
Choose your video
Choose a MOV video
or drag and drop
MOV · up to 250 MB
How it works
A private, browser-based converter
Convert locally
FFmpeg.wasm runs in a browser worker and creates a compatible MP4 on your device.
Download the MP4
Preview the result when supported, download it, then reset the tool to release resources.
About MOV to MP4 conversion
MOV and MP4 are containers: the video and audio inside them can use different codecs. This converter checks those streams first. When they are already compatible, it can repackage them without re-encoding. Otherwise, it converts supported video to H.264 and audio to AAC for broad playback support.
Browser conversion is convenient and private, but it uses your device's memory and processor. Keep this tab open during conversion and use a desktop browser for larger files.
Common questions
MOV to MP4 FAQ
Is my MOV video uploaded?
No. The converter reads and processes the selected video inside your browser. The file is not sent to our server or a third-party service.
Why convert MOV to MP4?
MP4 with H.264 video is widely supported by browsers, phones, messaging apps and media players. Compatible MOV streams are repackaged; other supported streams are transcoded.
What is the maximum file size?
Phase 1 uses a conservative 250 MB limit because browser-based conversion needs significant memory. Actual performance depends on the device, browser, duration and codec.
Which browsers are supported?
Use a current release of Chrome, Edge, Firefox or Safari. Older browsers and memory-constrained mobile devices may not be able to run WebAssembly video conversion.