MOV to MP4

iPhones, Macs and many cameras save video as MOV. Apple devices play it happily, but some Windows apps, Android phones, smart TVs, websites and upload forms want MP4. MP4 with H.264 video and AAC sound is the most widely supported video file there is.

This page opens Compress Video set up for conversion: the “High quality” goal and “Keep original” resolution. Your video is re-encoded on your device as an MP4 at the same width and height, with a generous bitrate worked out from the video itself, so it looks very close to the original. It is a re-encode, not a lossless copy, and it never aims above about 80% of the original’s bitrate, so the MP4 is usually a little smaller than the MOV.

Saving MP4 needs a browser with an H.264 and AAC encoder: Chrome, Edge and Safari have them. Firefox cannot write AAC sound, so it saves a WebM file instead, and the page says so before you start. Newer iPhones record in HEVC (“High Efficiency”); Safari reads it, and so does Chrome or Edge on most recent computers. Nothing is uploaded at any point.

1. Tap “Choose videos” or drop one or more MOV files on the box. Each gets a row with its length, resolution and size.
2. The line above the tool confirms the job: MOV to MP4, high quality, original resolution. The note under the options says whether this browser will save MP4.
3. Press “Compress video” (or “Compress 3 videos”). On this page that means converting to MP4 at high quality. Each row shows its progress.
4. Press Preview on a row to watch it and compare a frame with the original, then press Download, or “Download all (ZIP)”.

• Opens set for MOV to MP4: High quality goal, original resolution kept.
• Saves MP4 with H.264 video and AAC sound wherever the browser can write them; otherwise WebM, and it tells you first.
• Converts several videos one after another, with progress for each and a ZIP download.
• A side-by-side frame check with a draggable line to compare with the original before you download.
• Before and after sizes and in-page playback of each result.
• Smaller goals and size limits (WhatsApp, Discord, email) are still there if you also need a smaller file.

• Use Chrome, Edge or Safari for an MP4. In Firefox the result is WebM.
• If an iPhone video will not open, it is probably HEVC on a browser without an HEVC decoder: try Safari, or set the iPhone camera to Most Compatible for future videos.
• Converting cannot make a video sharper than it was; keep the original MOV if you may need the best copy later.
• Long 4K videos take a while and need plenty of memory: a computer is quicker than a phone.