M4V to MP4 Converter – Free Online

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How to Convert M4V to MP4 Online

Upload your M4V file

Drag and drop your .m4v file onto the page or click to browse. You can select several M4V files at once to batch-convert them.

MP4 is preselected

The output format is already set to MP4, so you can convert immediately. If you need to, adjust the codec, resolution, frame rate or bitrate in the settings panel first.

Convert and download

Click Convert. The MP4 file is processed on your own device; nothing is uploaded to a server. When it finishes, click Download to save it (or Download all to get a batch as a ZIP).

Why Convert M4V to MP4?

M4V is Apple's MP4 variant used by iTunes and older iOS exports. Many Android phones, smart TVs and Windows apps reject the .m4v extension even though the contents are nearly identical to MP4. Converting M4V to MP4 fixes that with no visible quality change.

The converter re-encodes the H.264 video and AAC audio into a standard MP4 container, keeping the source settings by default. Note that DRM-protected iTunes purchases cannot be converted by any tool; only unprotected M4V files will open.

Private by design: your M4V file is converted on your own device and never uploaded.
MP4 preselected: the output format is already chosen, so it is a one-click conversion.
Batch friendly: convert several M4V files in one go and download them as a ZIP.
No limits, no watermark: free for files of any size, with nothing stamped on the output.

M4V vs MP4

M4V (iTunes Video): M4V is Apple's flavour of the MP4 container, used by iTunes and older Apple devices. Unprotected M4V files are structurally almost identical to MP4. It is best for iTunes libraries and older Apple devices.

MP4 (MPEG-4 Part 14): MP4 is the most widely supported video container in the world. It usually carries H.264 or H.265 video with AAC audio, plays on every phone, browser, TV and editing app, and is the safest choice for sharing. It is best for sharing, social media, web playback and mobile devices.

In short: keep M4V when the priority is iTunes libraries and older Apple devices, and switch to MP4 when the file is headed for sharing, social media, web playback and mobile devices. Need a different target? The full Video Converter supports every format listed below.

M4V to MP4 FAQ

Is M4V the same as MP4?

Nearly. M4V is Apple's MP4 container with optional DRM and AC3 audio. Unprotected M4V converts to a standard MP4; the video is re-encoded with the source settings kept, so it looks the same.

Can I convert purchased iTunes movies?

No. iTunes purchases are protected with FairPlay DRM and cannot be converted. Home recordings and unprotected exports convert fine.

Is this M4V to MP4 converter free?

Yes. Converting M4V to MP4 on MediaConverter.io is completely free, with no watermark, no sign-up and no daily conversion limit.

Are my M4V files uploaded to a server?

No. The converter runs inside your browser using WebAssembly and WebCodecs, so your .m4v file is read and converted on your own device. Nothing is uploaded, which keeps private recordings private and means there is no waiting in an upload queue.

Is there a file size limit for M4V to MP4?

No fixed limit. Because processing happens locally, the practical limit is your computer's memory and patience; multi-gigabyte M4V files convert fine on a desktop browser. Very large files take longer on phones.

Will converting M4V to MP4 reduce quality?

The video is re-encoded into MP4. Keep the source codec, resolution and bitrate (the defaults) and the result is visually the same as your M4V; lowering the bitrate or resolution is what reduces quality, and you control that trade-off in the settings panel.

Which browsers support the M4V to MP4 converter?

Current versions of Chrome, Edge, Firefox and Safari on desktop all work. Chrome and Edge are fastest because they expose hardware-accelerated WebCodecs decoders.