MOV to MP4 Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
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Convert MOV to MP4 online
Convert MOV to MP4 when an iPhone or Mac recording needs to go somewhere that is not Apple. MOV plays perfectly on Apple devices and gets rejected by plenty of upload forms, Android players, and Windows software — MP4 is the format that works everywhere without asking.
When should you convert MOV to MP4?
- Upload an iPhone video to a form that rejects .mov
- Send footage to someone on Windows or Android
- Prepare a clip for a website or a social platform
- Standardise mixed footage before editing
Before you convert
The index is moved to the front
The output is written with +faststart so it can begin playing before the whole file has downloaded — which matters for anything served over the web.
One audio track survives
Multi-channel or multi-language audio from a professional camera is reduced to a single stereo AAC track.
What happens to your file
MOV to MP4 is a full re-encode, not a container swap: the video is decoded and re-compressed with libx264 (H.264) at CRF 23, preset medium, and the audio is re-encoded to AAC at 192 kbps. The MP4 index is moved to the front of the file (+faststart) so it can start playing before the whole download finishes, and pixels are written as yuv420p for maximum device compatibility.
Settings this conversion runs with
| Engine | ffmpeg |
|---|---|
| Video codec | libx264 (H.264) |
| Video quality | CRF 23, preset medium |
| Audio codec | AAC |
| Audio bitrate | 192 kbps |
What changes
- The MOV picture is decoded and re-compressed with libx264 (H.264), so this is a generation loss: the output is built from an already-compressed source, not from the original camera data. Converting MOV to MP4 and back will soften the clip a little more each time.
- Only one video and one audio stream reach the MP4 file. Additional audio languages, embedded subtitle tracks, and chapter markers are not carried across.
About MOV and MP4 files
MOV video
Strengths
- high quality
- great for editing
Limitations
- large files
- best support on Apple devices
MP4 video
Strengths
- plays almost everywhere
- good quality-to-size
- widely supported
Limitations
- lossy compression
- less flexible than MKV
MOV vs MP4
| Format | MOV | MP4 |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | — | — |
| Best for | Apple and QuickTime video, iPhone recordings | streaming and sharing, playback on any device |
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Frequently asked questions
- Does converting MOV to MP4 re-encode the file?
- MOV to MP4 is a full re-encode, not a container swap: the video is decoded and re-compressed with libx264 (H.264) at CRF 23, preset medium, and the audio is re-encoded to AAC at 192 kbps. The MP4 index is moved to the front of the file (+faststart) so it can start playing before the whole download finishes, and pixels are written as yuv420p for maximum device compatibility.
- What should you know before converting MOV to MP4?
- The MOV picture is decoded and re-compressed with libx264 (H.264), so this is a generation loss: the output is built from an already-compressed source, not from the original camera data. Converting MOV to MP4 and back will soften the clip a little more each time.
- Is this MOV to MP4 converter free?
- Yes. You can convert MOV to MP4 online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. Use the converter from your browser without installing software or creating an account. Files are uploaded to our servers for processing.
- Will converting MOV to MP4 reduce quality?
- MP4 uses lossy compression, so the file can get smaller while some visual quality may change.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.