MKV to MOV
MKV is a favorite for high-quality video because it can pack multiple audio tracks, subtitles, and modern codecs into one file — but Apple software largely ignores it. QuickTime, iMovie, and Final Cut won't open MKV, so Mac users hit a wall. Converting to MOV, Apple's native format, fixes that. If the MKV's video is already H.264 or HEVC, the conversion can remux quickly with no quality loss; if it uses a codec MOV can't carry, it re-encodes. Note that extra subtitle and audio tracks may be dropped or flattened in the process. FluidConvert converts MKV to MOV free, with no account required.
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Accepts: video/x-matroska, .mkv · Max 1GB · always free
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Simply upload your .MKV file and we'll convert it to .MOV format — fast, free, and secure.
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Convert files up to 1GB completely free. No account, no limits.
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How to Convert MKV to MOV
Upload Your File
Click the upload area above or drag and drop your .MKV file. We support files up to 1GB, completely free.
Choose Output Format
Select .MOV as your target format. Adjust any conversion settings if needed.
Download Your File
Click Convert Now and wait a few seconds. Once complete, download your converted file instantly.
About MKV to MOV
Last updated: August 2026
What is MKV?
MKV (Matroska Video) is a flexible, open-standard container that can hold virtually any codec along with multiple video, audio, and subtitle tracks in a single file. It's popular for high-definition movies and archives because it supports modern codecs like H.264, HEVC, and AV1, chapter markers, and multi-language audio and subtitles all at once. That versatility is its strength, but also why compatibility varies — the container is well supported on Windows, Android, and media players like VLC, yet largely unsupported by Apple's built-in software, which won't play or import MKV without conversion or third-party tools.
Why convert to MOV?
MOV is Apple's QuickTime container, so converting MKV to MOV is what makes your video usable on a Mac. QuickTime Player, iMovie, and Final Cut all reject MKV but handle MOV natively, so the switch lets you play, import, and edit footage that was previously stuck. If you've downloaded or archived video in MKV and want to work with it in Apple's ecosystem — editing a project, adding a clip to a movie, or just watching it in QuickTime — MOV is the format that unlocks it without needing to install extra playback software.
What to expect from the conversion
The result depends on the MKV's contents. If its video uses a QuickTime-compatible codec like H.264 or HEVC, the conversion can remux — repackaging streams into MOV without re-encoding — for zero quality loss and fast processing. If it uses a codec MOV doesn't support, the video must be re-encoded, which is lossy and slower. There's also a container difference to note: MKV can hold many audio tracks and soft subtitles, but MOV handles these more simply, so extra audio tracks may be dropped and subtitle tracks may be lost or need to be burned in. Quality never exceeds the source.
How FluidConvert handles it
FluidConvert checks your MKV's codecs and remuxes into MOV without quality loss when they're compatible, or re-encodes to H.264 when they aren't. Processing runs on secure servers, uploads are encrypted in transit, and files are deleted automatically after conversion. It's free with no account required, keeping the primary video and audio tracks intact.
Common reasons to convert MKV to MOV
- Playing downloaded MKV movies in QuickTime Player, which doesn't support MKV
- Importing MKV footage into iMovie or Final Cut Pro for editing on a Mac
- Converting an HEVC MKV into MOV to keep quality while gaining Apple compatibility
- Preparing archived MKV video for a Mac-based workflow without installing extra players
- Turning a multi-track MKV into a straightforward single-track MOV for simple playback
Frequently Asked Questions
Will I lose quality converting MKV to MOV?
Not if it's a remux. When the MKV's video is already a MOV-compatible codec like H.264 or HEVC, the streams are copied into the MOV container without re-encoding, preserving quality exactly. Only if the video uses a codec MOV can't carry does a lossy re-encode happen, which may slightly soften the image. A high-quality re-encode still keeps the result visually close to the original MKV.
Why can't Apple software play MKV directly?
Apple never built native MKV support into QuickTime, iMovie, or Final Cut, so those apps refuse to open Matroska files even when the codecs inside are ones Apple supports. It's the container, not always the codec, that's the barrier. Converting to MOV puts the same video into Apple's native QuickTime container, so it plays and imports without installing third-party players like VLC.
What happens to multiple audio tracks and subtitles?
MKV can hold many audio tracks and soft subtitle tracks, but MOV handles these more simply. During conversion, extra audio tracks may be dropped in favor of the primary one, and soft subtitles may be lost since MOV doesn't carry them the same way. If you need subtitles in the MOV, they typically have to be burned into the video, which makes them permanent and non-toggleable.
Is converting MKV to MOV fast?
It can be very fast if the conversion is a remux, since that only repackages existing streams without processing each frame. If the MKV's codec isn't MOV-compatible and a re-encode is required, it takes considerably longer, scaling with the video's length and resolution. Whether you get the fast path depends entirely on whether the MKV already uses a codec MOV supports, like H.264 or HEVC.
Does the MOV file end up larger or smaller than the MKV?
On a remux, the size stays close to the original because the video and audio data are unchanged and only the container swaps. If a re-encode is needed, the size depends on the target settings — it could shrink or grow relative to the MKV. Dropping extra audio and subtitle tracks can also trim a little size, since that data is no longer stored in the file.