Convert M4V to MP4 in your browser
Turn Apple M4V files into standard MP4 videos that open in any player, editor or upload form. In most cases the video is copied as-is: no quality loss, done in seconds.
How it works
- 1
Choose or drop your M4V file.
- 2
Keep MP4 as the output format (MOV and WebM are also available).
- 3
Click M4V to MP4 and download the MP4. Your video was never uploaded.
What is an M4V file?
M4V is a video format created by Apple. It is almost identical to MP4: same MPEG-4 container, usually H.264 video with AAC audio. Apple uses the .m4v extension for videos from the iTunes Store and for exports from some of its apps, and the popular HandBrake encoder also saves files as .m4v by default.
Because the extension is less common, some software refuses M4V even though it could play the content: Windows media players, Android apps, video editors, smart TVs, social networks and upload forms that only list .mp4. Converting to a real MP4 removes the guesswork.
Lossless and near-instant for H.264 files
When the M4V holds H.264 video and AAC audio, which is the usual case, Vidmini does not re-encode anything. It copies the video and audio streams into a new MP4 container, exactly as they are. The picture is bit-for-bit identical, and even a long film is ready in seconds because nothing has to be decoded. The result screen shows “Lossless: no re-encoding” when this happens.
If a stream uses another codec, for example HEVC video, it is re-encoded to H.264 (and the audio to AAC) so the MP4 plays everywhere. This takes longer and uses your device’s hardware encoder when available. HDR footage may look slightly faded after re-encoding, since there is no tone-mapping yet.
Need something else? The same tool writes MOV (H.264 + AAC) for Apple editing workflows or WebM (VP9 or VP8 + Opus) for the web.
DRM-protected iTunes videos cannot be converted
Movies and TV episodes bought or rented on the iTunes Store are often M4V files protected by Apple’s DRM. Their content is encrypted and can only be played in Apple’s own apps on authorized devices. Vidmini cannot decode them, and neither can any other honest converter. If a file fails to open, DRM is the most likely reason.
Everything without DRM works: HandBrake encodes, exports from Apple apps, videos you recorded or edited yourself, and DRM-free downloads.
Private and without size limits set by us
The conversion runs entirely in your browser using the WebCodecs API and WebAssembly. Your video is not uploaded, the page uses no tracking cookies, and once loaded it works offline.
There is no size limit set by us. The MP4 is streamed to your browser’s private storage, so desktop browsers handle multi-gigabyte films. On phones the limit depends on free memory and storage.
Frequently asked questions
Is converting M4V to MP4 lossless?
Usually yes. Most M4V files contain H.264 video and AAC audio, which are copied into the MP4 without re-encoding, so quality is unchanged. Only other codecs, such as HEVC, are re-encoded.
Can I just rename .m4v to .mp4?
It often works, because the container is nearly the same. But some players and upload forms check more than the extension. Converting writes a clean MP4 file, and for H.264 files it takes only seconds.
Can I convert movies bought on iTunes?
Not if they are DRM-protected. Protected iTunes movies and TV shows are encrypted and cannot be decoded in the browser. DRM-free M4V files convert normally.
Why is my conversion so fast?
Because nothing is re-encoded. When the M4V already uses H.264 and AAC, Vidmini simply copies the streams into a new MP4 container, which is limited only by how fast your device can read and write the file.
Is my video uploaded?
No. The file is processed by your own browser. Our Content Security Policy only allows the page to contact vidmini.com for its own code, and no tracking cookies are used.
Will the MP4 have a watermark?
No. Vidmini never adds a watermark, logo or intro, and there is no paid version.