Step 1: Supply your MKV files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted M4V files.
MKV to M4V Conversion FAQ
What does the MKV to M4V converter do?
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It transcodes a MKV video into the M4V container. Resolution, frame rate, and aspect ratio are preserved by default — useful when you need a different format for a target player without quality loss.
Will resolution and frame rate be preserved in the M4V?
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Yes. MKV → M4V keeps resolution, frame rate, and aspect ratio unchanged by default. To change them, use the Resize or Speed tool on the result.
Is the MKV to M4V conversion reversible?
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You can convert the M4V back to MKV on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Will the converted M4V be a different size than the MKV?
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Modern codecs compress better, so M4V from a legacy MKV is typically 30-60% smaller at equivalent quality. Conversions in the opposite direction can grow the file.
Will the M4V I get back be locked to a store or an account?
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No, and the extension is what causes the confusion. M4V names a video file with the same internal structure as an ordinary MP4; the ones sold through a store are additionally wrapped in the seller's protection, and that wrapping is a property of the purchase rather than of the format. A file converted here has none of it — a plain, unprotected video that happens to carry that extension, playable wherever the extension is recognised and convertible onward as many times as you like. M4V is Apple’s variant of MP4, used by iTunes and the Apple TV app for films and TV episodes.
My MKV files came from ripping discs — will they convert cleanly?
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Cleanly, yes, but check what is inside first. A rip usually carries more than the picture — often several audio languages, sometimes a subtitle track or chapter marks — and whether those survive depends entirely on what the M4V can hold, not on the rip. The other thing to know is that the encode already happened: the ripper chose a bitrate years ago and no conversion can recover detail it discarded, so if the discs are still around, re-ripping beats re-encoding. MKV is Matroska, an open container designed in 2002 with no licensing restrictions and no ceiling on what it can hold.
Both MKV and M4V are modern containers — which should I actually keep?
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Keep whichever matches where the file is going, because neither is better in the abstract. One of these two is built for playback compatibility and the other for holding everything a file might contain, and they trade against each other exactly along that line. The pragmatic answer for most libraries is to archive in the feature-rich container and export to the compatible one on demand. MKV is the archival container of choice because it stores unlimited audio tracks, soft subtitles, chapter markers and cover art in one file. M4V keeps chapter markers, artwork and subtitle tracks in the shape the Apple TV app expects, which plain MP4 often loses.
Is there a file-size limit when converting MKV to M4V?
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Anonymous uploads are capped at a generous default; signed-in free accounts get a higher cap, and Pro accounts have no per-file limit. Browser memory is usually the practical constraint long before our server-side limits kick in.
Can I batch-convert several MKV files to M4V at once?
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Yes. Drop or pick multiple MKV files in one upload — the converter processes them in parallel and returns a ZIP of the M4V results. There is no need to repeat the upload step per file.
What happens to my MKV files after the conversion?
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Uploaded files and M4V outputs are auto-deleted after a short retention window. We do not inspect, share, or train on user files. Direct download links are time-limited and tied to your session.
Will my M4V play on phones, tablets, and TVs?
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Yes — M4V uses modern codecs that play natively on iOS, Android, Smart TVs, game consoles, and every modern browser.
Do I need to install software to convert MKV to M4V?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
