Convert MOV to MP4 Online for Free
Turn an iPhone or QuickTime MOV into a shareable MP4 in your browser.
Drop your MOV file here
or choose a local file or import from a URL
Choose a file to get started
How to Convert MOV to MP4
Open the original MOV
Choose the movie from your device. If it is stored in iCloud Photos, download the full recording before selecting it.
Choose a resolution
Keep Original for an editing review. Choose a lower height for a lightweight viewing copy; the aspect ratio is preserved.
Save the MP4
Select Convert MOV to MP4. Play the result, download it and check the saved copy on the device that needs it.
Why convert MOV to MP4 for Windows?
My colleague hears sound but sees a black screen
Try the same moment on the iPhone and on the receiving computer. If the phone shows the picture while Windows plays only the sound, the computer may be able to decode the audio but lack support for the video codec. The MOV extension identifies the container; two movies ending in .mov can use different compression methods inside it. Keeping the extension or changing it by hand cannot give a player the missing decoder.
When you convert MOV to MP4 here, the video target is H.264. A compatible source may be repackaged, while an HEVC source needs to be decoded and encoded again. Once the export finishes, send the downloaded MP4 to the colleague who reported the problem. Have them open the local file and check a scene with both speech and movement before you convert a whole folder.
When the app asks for an MP4 file
A submission form may reject a MOV before it even tries to read the picture. Use the MOV to MP4 converter to create the requested file type. If the form still rejects the MP4, read its other conditions: file size, duration, dimensions and audio requirements can each apply separately. A correct extension resolves only one of those checks.
Choose the right MOV to MP4 sharing copy
Send a phone video for review
A reviewer watching a conversation on a phone may be happy with a 720p copy. A reviewer reading a whiteboard in the background may need the original dimensions. Before you convert MOV to MP4, identify the smallest detail the recipient needs. After export, pause on that detail at the intended viewing size. This gives you a better quality check than comparing the file sizes alone.
Insert a camera clip into PowerPoint
Download the MP4 to the presentation computer and insert that file onto the slide. If the slide already contains the MOV, replace the old media object. Play the slideshow from the preceding slide and listen through the speakers you will use in the room. A successful preview in your browser tells you that the browser can play the movie; the slideshow check tests the actual presentation setup.
Deliver a preview from a ProRes shoot
Keep the camera original for color work and editing. Convert MOV to MP4 for someone who needs to watch a take or approve a cut. Inspect a face, a bright window and a moving subject in both versions. An H.264 delivery copy serves a different purpose from a high-bitrate camera master. Store the files under distinct names so a collaborator can tell which one to edit.
MOV to MP4 file size, color and orientation
Choose a height for the footage you actually have
Keep Original on the first pass if your source is a portrait recording, has fine text, or is destined for a large display. Selecting a smaller height reduces the number of pixels. It does not crop a portrait clip to a wide frame. If the subject has to fill a particular shape, decide on the crop separately and make sure faces, titles and captions remain inside it.
Check the size after export
It is possible to convert MOV to MP4 and end up with a larger file. An iPhone may have recorded efficient HEVC video, while the MP4 uses H.264 for playback compatibility. Duration and bitrate determine much of the size; the container name tells you very little about the number of bytes. When an attachment limit matters, take the finished MP4 to the video compressor and choose a target in MB.
Check HDR footage on the receiving screen
Compare the MOV and MP4 on the same display before concluding that the export changed the color. The iPhone and a standard computer monitor can display highlights differently. If skin tones look pale or the sky loses detail, compare a short scene in the recipient’s player. This page has no manual HDR tone-mapping controls. For a color-critical delivery, retain the original and use a color-managed export with an explicit delivery color space.
Prepare an iPhone MOV before conversion
If Photos shows a thumbnail but you cannot choose the movie as a file, save or export a local copy first. Play through the end to check the transfer completed. When you convert MOV to MP4 from your device, the media is processed in your browser. A direct HTTPS import instead asks your browser to fetch the file from its host. A link to a shared album usually opens a viewer and may not provide the movie bytes the converter needs.
If it takes a long time to convert MOV to MP4, check the duration and dimensions of the original. Ten seconds of 4K camera footage and an hour of 4K footage place very different demands on the same device. Keep the tab open and save the download before leaving. For a review of just one take, trim to that section first. For a full camera master that exceeds available browser memory, use a desktop encoder.
MOV to MP4 Frequently Asked Questions
Can I convert MOV to MP4 without losing quality?
If the source streams suit the MP4 output and no resizing is needed, repackaging can preserve them. HEVC or ProRes video must be re-encoded for this H.264 output. Choose Original to retain the dimensions and keep the camera file if the recording will undergo further edits.
Can I just rename an iPhone .mov file to .mp4?
Renaming changes the filename, while the movie data stays the same. Use Convert MOV to MP4 to produce an MP4 container with a suitable video stream. Keep the original extension on the source so your editing and photo apps still recognize it.
What if the MP4 still plays sound without a picture?
Open the saved MP4 in a second player on the receiving computer. If it plays there, investigate the first app’s playback support. If the same moment fails in both, check the original MOV from start to finish. A partial transfer needs a fresh copy of the source.
Why did the movie get bigger during transfer from my iPhone?
A transfer can create a compatible copy with a different encoding. Compare the duration, dimensions and codec of the phone original and the file on your computer. If you want control over when to convert MOV to MP4, transfer the original and make a separate delivery version.
Will a Live Photo still work as a Live Photo?
The MOV is the motion component. You can convert that movie into an ordinary video to share. The downloaded MP4 does not recreate the paired still image and Live Photo behavior in Photos. Keep the original photo asset if you want to preserve that experience.
Can I convert MOV to MP4 and keep an iPhone slow-motion effect?
First export a movie from Photos that plays the slowdown exactly where you want it. Play that file outside Photos before converting. A raw high-frame-rate clip may rely on editing instructions to mark the slow section, and changing its container does not bake in that timing.
Will the exported file keep the filming date and location?
The new download can have a new filesystem creation date. This tool is meant for making a viewing copy and does not promise archival metadata preservation. Record the shooting date in the filename or your catalog, and keep the original for location and camera information.
How do I convert MOV to MP4 for a 25 MB attachment?
Convert the clip, check the download size, then compress the MP4 if needed. If several attachments share the allowance, deduct their sizes first. For a long recording, a short excerpt or a sharing link may remain more readable than squeezing the entire session into the remaining space.
Why does an HDR movie look washed out after export?
Check both files in the same app on the same screen. HDR interpretation and tone mapping can change brightness and contrast. Compare a bright area with a familiar skin tone. If an accurately matched SDR version is required, use an editor with explicit color controls.
Can I convert several MOV files at once?
This page handles one MOV at a time. Use the batch video converter for several clips and keep each downloaded result. Check one representative file from each camera first, especially if the folder mixes standard iPhone footage with HDR or ProRes recordings.
How do I record more compatible video on my iPhone next time?
Where available, Camera → Formats → Most Compatible uses H.264 for new standard video recordings. That setting affects future captures; it does not change the MOV already saved. Some recording modes have their own format requirements.
Can I convert MOV to MP4 without uploading a personal recording?
Yes. Choose a file on your device and leave the page open while it processes. No account is needed. Preview the result for private details in both the picture and the soundtrack before you pass the downloaded copy to another person.