Add your M4V file
Drop one or more .m4v files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
M4V to MOV
Converting .m4v video to .mov means re-encoding the picture and sound into a different container and codec family, and this page does it entirely in your browser. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop M4V files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting MPEG-4 video to QuickTime video
Converting .m4v video to .mov means re-encoding the picture and sound into a different container and codec family, and this page does it entirely in your browser. An .m4v file is Apple's flavor of the MPEG-4 container, used by iTunes for movies, TV episodes, and music videos. Structurally it is almost identical to .mp4, but the .m4v extension signaled iTunes-specific features such as chapter markers and, on purchased content, FairPlay copy protection.
A .mov file is Apple's QuickTime movie container, which stores video, audio, text, and timecode tracks in a flexible atom-based layout. iPhones, iPads, and professional cameras that record ProRes all write .mov, so the extension shows up constantly in editing workflows. For this route the practical draw is first-class treatment on every Apple platform and ideal editing intermediate when paired with ProRes — balanced against proRes recordings consume enormous disk space, which is worth knowing before you commit a large batch.
Why convert M4V to MOV?
The practical trigger for this conversion is usually a mismatch: with .m4v, fairPlay-protected files play only in Apple apps on authorized devices, and no converter can open them. Switching to .mov buys you first-class treatment on every Apple platform, which is why it is the better fit for importing iPhone footage into an edit without conversion. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
M4V vs MOV at a glance
| Aspect | MPEG-4 video (.m4v) | QuickTime video (.mov) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | identical ISO base media layout to MP4, distinguished only by branding atoms and the extension | media lives in a hierarchy of atoms, each declaring its own size and type, which makes the format easy to extend |
| Strongest at | playing back iTunes-era video libraries | importing iPhone footage into an edit without conversion |
| Weak spot | fairPlay-protected files play only in Apple apps on authorized devices, and no converter can open them | proRes recordings consume enormous disk space |
| Metadata | full iTunes atom metadata: title, show, season, episode, artwork, chapters, and content ratings | quickTime metadata atoms and keys, including camera model, location, and timecode data written by iPhones and professional cameras |
Pick MOV as the output
Select .mov in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if MOV is selectable, the route is real and validated.
Convert on your device
Press Convert. The conversion runs on an FFmpeg engine compiled to WebAssembly, executing entirely inside your browser tab.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid MOV file. Outputs keep the original filename with the .mov extension.
M4V to MOV questions, answered
Will converting M4V to MOV lose quality?
Both sides are re-encoded, so expect a small generation loss controlled by the quality setting: m4v is container-oriented and mov is container-oriented. For visually or audibly transparent results keep quality high; for smaller files lower it and compare.
Is it private to convert M4V files here?
Yes — the .m4v file is processed inside your browser tab and never uploaded. The conversion runs on an FFmpeg engine compiled to WebAssembly, executing entirely inside your browser tab. Close the tab and the file is gone from memory.
Where will the MOV file work?
macOS and iOS treat .mov as a native format, and Windows plays H.264 variants through modern Media Player builds and most editors. On the web the container is unreliable, so re-wrapping to MP4 remains the standard route for online publishing.
Will the MOV file be bigger or smaller than my M4V?
It depends on the content: media lives in a hierarchy of atoms, each declaring its own size and type, which makes the format easy to extend. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my M4V file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, full iTunes atom metadata: title, show, season, episode, artwork, chapters, and content ratings; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert MOV back to M4V?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .m4v → .mov → .m4v is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.