Is MP4 better quality than MOV?

No, MP4 is not better quality than MOV by itself. Both are containers, which are like boxes that hold the video and sound. Video quality depends on the codec inside, such as H.264 or HEVC, and on the bit rate. The main advantage of MP4 is that more apps, browsers, and websites accept it.

Does converting MOV to MP4 lose quality?

Converting MOV to MP4 can lose a little quality when the app re-encodes the video, as iMovie does when it exports. The Quality setting controls how much. Tools that copy the video stream into a new MP4 box, without rebuilding it, keep the original quality and usually finish much faster.

How do I convert several MOV files to MP4 at once?

Converting several MOV files to MP4 at once needs a batch tool, because Apple's iMovie export guide says iMovie exports only one item at a time. Finder's Encode Selected Video Files works on many files but Apple doesn't say it saves MP4. FinderBuddy's Video to MP4 converts a whole selection from the right-click menu.

Is it safe to use an online MOV to MP4 converter?

Online MOV to MP4 converters work, but they require uploading the video to someone else's server. For family clips, screen recordings with private details, or work videos, that is a real privacy trade-off. Large files can also take a long time to upload. Converting on the Mac keeps every file on the computer.

What is a MOV file on a Mac?

A MOV file is a QuickTime movie, Apple's video format for macOS. QuickTime Player saves its exports as MOV files using the H.264 or HEVC codec, according to Apple's QuickTime Player User Guide. Macs play MOV files easily, but some Windows apps, websites, and upload forms ask for MP4 instead.

How to Convert MOV to MP4 on Mac

Video & audio

Quick answer

How do I convert MOV to MP4 on Mac?

To convert MOV to MP4 on a Mac, add the video to iMovie, click the Share button, choose Export File, and save. Apple says this option saves an MP4 file. QuickTime Player can't do it, because it only exports .mov files. For many videos at once, a Finder tool like FinderBuddy converts them with one right-click.

iMovie is the free built-in way: Share → Export File saves an MP4.
QuickTime Player can't help here. Apple says it only exports .mov files.
iMovie exports one video at a time. For a whole folder, a Finder tool is faster.
FinderBuddy adds Video to MP4 to Finder's right-click menu and keeps your original MOV.

You record a screen video or AirDrop a clip from your iPhone. You try to upload it, and the site says it doesn't support the file. The video is fine. It's just a MOV file, and the site wants MP4.

Here's the good news. Your Mac already has a free way to fix this, and it takes a couple of minutes once you know where to click.

A quick bit of context first. MOV is Apple's QuickTime movie format. MP4 (short for MPEG-4) is the format almost every phone, browser, and video site understands. Apple's own iMovie sharing article mentions apps that don't support MOV files, which is exactly why people convert.

How do I convert MOV to MP4 on Mac with iMovie?

iMovie is the best free option built by Apple. You add the MOV file to a project, then export it with Share → Export File. According to Apple's Share or export your iMovie video article, that option saves an MP4 file.

Open iMovie (it's free in the App Store if you deleted it) and make a new movie project with Create New → Movie.
Choose File → Import Media and pick your MOV file.
Drag the clip down into the timeline.
Click the Share button in the top right corner and choose Export File.
Pick a Resolution and Quality, then click Next.
Name the file, choose where to save it, and click Save.

Before you click Save, glance at the file name. It should end in .mp4. If you see a different ending, check the Quality menu and try a lower setting, since Apple's MP4 steps use Medium or Low.

Two things to know about iMovie

It works one video at a time. Apple's iMovie export guide says you can export only one item at a time.
It rebuilds the whole video. The Compress menu changes how long iMovie takes to convert the file, so a long video can take a while.

Why can't QuickTime Player save a MOV as MP4?

QuickTime Player only exports MOV files, so it can't turn a MOV into an MP4. Apple's QuickTime Player User Guide puts it plainly: "QuickTime Player doesn't export movies as MP4 videos."

This trips up a lot of people, because File → Export As looks like it should offer MP4. Its 4K, 1080p, 720p, and 480p presets all save a QuickTime movie. QuickTime is still great for trimming a clip or making it smaller, though. Our guide on how to compress a video on Mac walks through that.

What about Finder's Encode Selected Video Files?

Finder has a built-in action called Encode Selected Video Files. It re-saves videos at a new resolution, and it works on several files at once. Apple's guide doesn't say which file type it creates, so treat it as a maybe for MP4.

Select one or more videos in Finder.
Control-click (or right-click) and choose Encode Selected Video Files. On some macOS versions it sits inside the Services or Quick Actions submenu.
Pick a resolution, and choose higher quality or wider device support.
Click Continue and wait for the new files.

Those options come from Apple's QuickTime automation tips. When the new file appears, look at its name. If it doesn't end in .mp4, use iMovie or a dedicated converter instead.

The faster way: convert MOV to MP4 from the right-click menu

FinderBuddy is a Mac app that adds file tools to Finder's right-click menu, including Video to MP4. You select your MOV files, right-click, and get MP4 copies without opening an editor.

Select one MOV file, or a whole batch, in Finder.
Right-click the selection.
Choose FinderBuddy → Video to MP4.

FinderBuddy says most videos convert in seconds, with no quality lost. Your original MOV files are kept, and everything runs on your Mac, so nothing is uploaded. That matters for family videos and work recordings.

The app is a free download with a set of free tools. The video and audio tools unlock with a one-time license. You can grab it from the download page, and the setup guide gets the menu working in about a minute.

Which MOV to MP4 method should you use?

Use iMovie for one video, and a Finder tool for many. Here's how the options line up, based on what Apple documents for each app.

Method	Saves MP4?	Many files at once?
iMovie (Share → Export File)	Yes	No, one at a time
QuickTime Player	No, MOV only	Doesn't apply
Finder Encode Selected Video Files	Not stated by Apple	Yes
FinderBuddy Video to MP4	Yes	Yes

What this means for you

One clip for an upload? iMovie is free and does the job.
A folder of screen recordings? A right-click tool saves you from exporting them one by one.
File too big after converting? Shrink it next. MP4 doesn't mean small.
Only need the sound? Skip the video and convert the video to MP3 instead.

My take

Honestly, I'd use iMovie for a one-off and not think twice. It's free and it's made by Apple.

The pain starts when MOV to MP4 becomes a weekly chore. Opening an editor, importing, exporting, and cleaning up the project gets old fast. That's the moment a right-click tool pays off, because the whole job becomes select, right-click, done.

One more tip. Rename your files before converting if they have messy camera names. Our batch rename guide shows how to do a whole folder at once.

The short version

You can absolutely convert MOV to MP4 on your Mac without any website. iMovie's Share → Export File handles a single video for free. QuickTime Player won't do it, so don't waste time there.

And when you have a stack of videos, a Finder tool turns the job into a single right-click. Once you do it once, it becomes second nature.

Frequently asked questions

Is MP4 better quality than MOV?: No, MP4 is not better quality than MOV by itself. Both are containers, which are like boxes that hold the video and sound. Video quality depends on the codec inside, such as H.264 or HEVC, and on the bit rate. The main advantage of MP4 is that more apps, browsers, and websites accept it.
Does converting MOV to MP4 lose quality?: Converting MOV to MP4 can lose a little quality when the app re-encodes the video, as iMovie does when it exports. The Quality setting controls how much. Tools that copy the video stream into a new MP4 box, without rebuilding it, keep the original quality and usually finish much faster.
How do I convert several MOV files to MP4 at once?: Converting several MOV files to MP4 at once needs a batch tool, because Apple's iMovie export guide says iMovie exports only one item at a time. Finder's Encode Selected Video Files works on many files but Apple doesn't say it saves MP4. FinderBuddy's Video to MP4 converts a whole selection from the right-click menu.
Is it safe to use an online MOV to MP4 converter?: Online MOV to MP4 converters work, but they require uploading the video to someone else's server. For family clips, screen recordings with private details, or work videos, that is a real privacy trade-off. Large files can also take a long time to upload. Converting on the Mac keeps every file on the computer.
What is a MOV file on a Mac?: A MOV file is a QuickTime movie, Apple's video format for macOS. QuickTime Player saves its exports as MOV files using the H.264 or HEVC codec, according to Apple's QuickTime Player User Guide. Macs play MOV files easily, but some Windows apps, websites, and upload forms ask for MP4 instead.