MKV to M4V Converter
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Supports: MKV
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Need help?Convert MKV to M4V Online
Turn a Matroska (.mkv) video into Apple's .m4v — the H.264/AAC layout iTunes, the Apple TV app, and QuickTime expect — so your file imports cleanly into an Apple library or plays on an older iPod or iPad. Because MKV is an open container that can hold almost any codec (H.265, VP9, AV1, DTS audio), the conversion re-encodes the picture and sound to H.264 video and AAC audio; that transcode is a generational step, so pick a high quality preset if you care about keeping detail. The .m4v files we produce are always DRM-free — never locked to an account — so once converted they behave like a plain MP4 and can even be renamed to .mp4 for players that don't recognise the .m4v extension.
How to Convert MKV to M4V
- Upload Your MKV File: Drag and drop your .mkv onto the page or click "Add Files". You can queue several clips and convert them with the same settings.
- Pick a Quality Preset: Open Advanced Options and choose a Quality Preset — the default is "Very High (Recommended)". Higher presets preserve more detail at a larger file size; lower presets shrink the output.
- Set Resolution or Trim (Optional): Leave "Keep original" to retain the source resolution, or choose a Preset Resolution to downscale; use Trim with a Time Range to export only part of the video.
- Convert and Download: Click "Convert" and save your .m4v. No sign-up, no watermark.
M4V vs MP4 — What's Actually Different
| Property | M4V (.m4v) | MP4 (.mp4) |
|---|---|---|
| Developer | Apple (introduced 2006 with the iTunes Store) | MPEG / ISO (MPEG-4 Part 14) |
| Underlying container | Same ISO base media format as MP4 | ISO base media format |
| Typical video codec | H.264 | H.264, also HEVC, MPEG-4 |
| Typical audio codec | AAC (Apple files may carry Dolby Digital) | AAC, also AC3, MP3 and more |
| Optional DRM | Apple FairPlay (store purchases only) | None |
| Plays natively on Apple TV / iTunes | Yes, by extension convention | Yes |
| Universal device support | Narrower (treated as "iTunes video") | Widest of any video format |
| Renamable to the other | A DRM-free .m4v plays as .mp4 once renamed | An .mp4 can be renamed .m4v |
Frequently Asked Questions
Will converting MKV to M4V reduce the quality?
MKV is just a container, so the conversion has to re-encode whatever was inside it (often H.265, VP9 or AV1) into H.264, and that re-encode is lossy. Choosing the "Very High" Quality Preset keeps the loss small and usually imperceptible on a 1080p clip; dropping to a low preset or a smaller target file size will visibly soften the picture.
What happens to MKV subtitles, chapters and extra audio tracks?
MKV can pack soft subtitles, chapter markers and several audio tracks, but M4V is built around a single video and a single audio track, so those extras are typically not carried over — the output is one video stream plus one AAC audio stream. If you need a specific language track, select it before converting.
Is the .m4v file locked with Apple DRM?
No. Apple's FairPlay DRM is only applied to videos bought from the iTunes Store; files you convert here are plain, DRM-free M4V. In our testing, a DRM-free .m4v exported from this tool played in VLC and QuickTime and could be renamed to .mp4 without any other change.
Should I convert to M4V or just to MP4?
They're the same container under the hood — the extension is the only practical difference. Use M4V when something in the Apple ecosystem specifically expects .m4v; otherwise the more universal extension is fine. For that, use Convert MKV to MP4, which produces the identical H.264/AAC video with the .mp4 name.
How large a file can I upload?
The real limit is upload size and time rather than your device — a multi-gigabyte movie takes longer to send and encode than a short clip. If a feature-length MKV is too big to upload comfortably, lower the Quality Preset or set a smaller target file size so the output stays manageable.
How are my files handled and how long are they kept?
Your MKV is uploaded over an encrypted connection, converted on our servers, and the files are deleted automatically a few hours after conversion — no sign-up, no watermark, and nothing is shared or made public.