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Add one or more .MOV files to start the conversion.
Paul Zuiderduin Tools
.MOV to .mp4, without the hassle
Add your QuickTime video, convert it locally in your browser, and download an MP4. No upload, no account, no waiting for a server.
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Convert your .MOV to MP4
Add a .MOV file. Conversion runs in this tab, then your MP4 is ready to download.
Drop .MOV files here
or choose files manually
Before you start:Large videos can take longer because conversion happens in your browser.
Your videos
Add a .MOV file to begin
Your video stays on your device. Nothing is uploaded.
Free MOV to MP4 conversion, explained
Choose your MOV file, select Convert to MP4, then download the result. Conversion happens on your device.
Does converting MOV to MP4 reduce quality?
Fastest mode first copies the existing video and audio into an MP4 container without re-encoding, preserving quality. If copying is not possible, it re-encodes the video. Best compatibility always re-encodes, which can change quality and file size.
Can I convert an iPhone or QuickTime MOV?
Yes, you can select MOV videos from your iPhone, Mac, or another device. Support depends on the codecs inside the file and the memory available in your browser. A MOV extension alone does not guarantee compatibility.
Why is a large video taking longer?
Conversion uses your device's processor and memory. Re-encoding a large or high-resolution video can take several minutes. Keep this tab open and watch the elapsed time. You can cancel and retry with a shorter clip.
Why does my converted MP4 not play?
Fastest mode may preserve a codec your player does not support. Try Best compatibility in Conversion options to export H.264 video and AAC audio. This takes longer.
Are my videos uploaded?
No. FFmpeg WebAssembly runs locally in your browser using a single-thread conversion engine. Your videos stay on your device. Umami collects website usage and conversion events, including approximate file sizes and error categories, but not filenames or video content.
Is this MOV to MP4 converter free?
Yes. There is no account, watermark, or payment required. Browser memory and supported codecs limit which files can be converted.
Made by Paul Zuiderduin. No video upload or account required.