Tonvert

MOV → MP4

MOV to MP4 Converter

QuickTime files frustrate Windows, Android and most upload forms. Repackage a MOV as MP4 — instantly when the codecs already fit.

FreeNo sign-upNo upload — runs on your device

Drop a MOV file here, or click to browse

Accepted: .mov · up to 2 GB

Conversion mode

Before you start

  • · The first conversion downloads the FFmpeg engine (about 32 MB). It is cached afterwards.
  • · Keep files under 2 GB, and under a few hundred MB if you are on a phone or re-encoding video.
  • · Keep this tab in the foreground — browsers throttle background tabs and the conversion will pause.

How to convert MOV to MP4 in 3 steps

  1. 1

    Add your MOV file

    Drop in a .mov file from an iPhone, a camera, QuickTime Player or a Mac screen recording.

  2. 2

    Choose the conversion mode

    Start with Fast remux. If the file will not play afterwards, run it again with Re-encode for guaranteed compatibility.

  3. 3

    Convert and download

    Press Convert. A remux finishes in seconds; a re-encode takes roughly as long as the clip is long, times a slowdown factor.

About MOV and MP4

MOV and MP4 are close relatives

Both are QuickTime-family containers, so when a MOV holds H.264 video and AAC audio, changing it to MP4 is just a relabelling of the container — no pixel or sample is touched. That is exactly what the fast remux mode does, and it is why it finishes in seconds regardless of file size.

When you have to re-encode

MOV files can legitimately hold ProRes, DNxHD, HEVC with unusual parameters, or multiple audio tracks that MP4 players reject. In those cases the remux produces a file that will not play, so switch to Re-encode. FFmpeg then decodes each frame to H.264 with the yuv420p pixel format that every player understands, and converts audio to AAC. Expect a slowdown of several times real time on a laptop, and keep files under a few hundred megabytes.

Why MP4 wins on compatibility

MP4 is the most widely accepted video container in existence: Windows Media Player, Android, iOS, smart TVs, browsers, PowerPoint and every major social platform accept it. MOV support is essentially limited to Apple software and pro editing suites, which is why a MOV from an iPhone so often fails to open on a Windows PC.

Frequently asked questions

How do I convert MOV to MP4 for free?
Add the MOV file above, keep Fast remux selected, and press Convert. If the result will not play in your target app, convert again using Re-encode.
Should I choose remux or re-encode?
Try remux first — it is lossless and takes seconds. Switch to re-encode only when the remuxed file fails to play, which happens with ProRes, exotic HEVC or unusual audio tracks.
Does remuxing lose quality?
No. Stream copy moves the encoded video and audio bits into the new container without decoding them, so the quality is bit-for-bit identical to the source.
Why is re-encoding so much slower?
Re-encoding decodes and recompresses every frame in a WebAssembly virtual machine inside your browser. That is inherently slower than native software, and the cost scales with resolution and clip length.
Can I convert a large MOV on a phone?
Small clips convert fine. Mobile browsers allocate less memory to a tab, so stick to files under a few hundred megabytes if you are on a phone, or use a desktop for anything long.
Is there a watermark or a length limit?
Neither. The output is a clean MP4 with no watermark, no branding and no time limit other than the roughly 2 GB memory ceiling.

More conversions

Every tool below runs in your browser with the same no-upload guarantee.

M4A to MP3

M4A to MP3 converter

MOV to MP3

MOV to MP3 converter

WAV to MP3

WAV to MP3 converter

MP3 to WAV

MP3 to WAV converter

WEBM to MP3

WEBM to MP3 converter

MP3 to MP4

MP3 to MP4 converter

MKV to MP4

MKV to MP4 converter