Cut M4V (Apple video) by setting start and end times. Only DRM-free M4V files can be processed. No re-encoding, no quality loss.
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M4V is Apple's variant of the MP4 container — same MPEG-4 structure, but with the .m4v extension Apple uses for iTunes Store video, Apple TV app downloads, and exports from iMovie and QuickTime Player on macOS. The audio is typically AAC and the video is H.264 or HEVC, identical to MP4 internally; the extension just signals "Apple-flavored." Cutting an M4V is useful when you want to:
.m4v. Pull out the 90-second moment you want to share without re-rendering the whole file. DRM-protected (FairPlay) titles cannot be processed by any browser tool, including this one..m4v (or .mov) by default. Strip the dead air at the start of a screen recording, the false starts before a take, or the credits at the end without reopening the project.For a different output container after cutting, see M4V to MP4, M4V to MOV, or Compress M4V. For the same workflow framed as trimming, see Trim M4V.
| Property | Default settings | Custom settings |
|---|---|---|
| Speed | Proportional to clip length | Proportional to clip length |
| Quality | Re-encoded at the visually-lossless preset (CRF 18 H.264 / CRF 17 HEVC) | Whatever CRF / bitrate you choose |
| Output codec | Standard codec in M4V | Any: H.264, H.265 / HEVC, AV1, MPEG-4 |
| Cut precision | Frame-accurate | Frame-accurate |
| Audio | Re-encoded to AAC at a matching bitrate | Re-encoded to the codec you pick |
| File size | Proportional to duration kept | Variable by CRF / bitrate |
| Best for | Quick extraction at source-matching quality | Codec change, smaller file, different resolution |
Either way the cut is frame-accurate: whether you want "minutes 2-5 of this 20-minute iMovie export" or the cut to land on the exact frame (a goal, a punchline, a button-click in a screen recording), the kept segment is decoded and re-encoded so it starts precisely where you say.
| Source codec | Cut behavior | Notes |
|---|---|---|
| H.264 (most iTunes / iMovie M4Vs) | Frame-accurate re-encode at CRF 18 | Plays on every device |
| HEVC / H.265 (newer iTunes 4K, iMovie HEVC exports) | Frame-accurate re-encode at CRF 17 | Keeps HEVC's ~50% size advantage over H.264 |
| MPEG-4 Part 2 (older iTunes / DivX-style M4Vs) | Frame-accurate re-encode; pick H.264 for modern players | |
| AAC audio (the M4V default) | Re-encoded at a matching bitrate | Sounds the same as the source |
Not visibly. The cut decodes the kept segment and re-encodes it at the visually-lossless default preset (CRF 18 for H.264 / CRF 17 for HEVC), so the clip is not bit-identical to the source but is visually indistinguishable from it even side-by-side. The upside is precision: the cut is frame-accurate instead of snapping to the nearest keyframe. Quality only drops noticeably if you deliberately pick a lower preset, a higher CRF, or a smaller resolution.
No. M4V files purchased or rented through the iTunes Store and most Apple TV app downloads are wrapped in Apple's FairPlay DRM, which prevents any third-party tool — browser-based or desktop — from reading the video. The file will load but the cut step will fail. DRM-free M4Vs (your own iMovie exports, QuickTime recordings, ripped personal discs, iTunes purchases that pre-date FairPlay, podcasts) cut without issue.
With XConvert it shouldn't — the cut re-encodes the kept segment, so it starts at your exact timestamp. The snap-back you're describing is how stream-copy cutters behave: they can only cut on keyframes (I-frames), and most M4V encoders place keyframes every 2-10 seconds, so those tools rewind a requested 00:01:23 cut to 00:01:18 if that's the nearest preceding keyframe. Here the cut lands exactly on 00:01:23.
Internally none for the cut operation — both are MPEG-4 containers with H.264 or HEVC video and AAC audio. The .m4v extension is Apple's signal that the file may carry FairPlay DRM or Apple-specific metadata (chapters, closed captions for iTunes); MP4 carries the same payload without that signal. A DRM-free M4V can be renamed to .mp4 and most players will treat it identically. If you want the output to play universally without the Apple association, use M4V to MP4 for the conversion or pick MP4 as the output container in re-encode mode.
Yes. The cut keeps M4V as the container with a standard H.264 or HEVC stream, which plays in QuickTime Player, the Apple TV app, the Music / iTunes library, iMovie, Final Cut Pro, and Photos. For maximum cross-platform compatibility (Windows Media Player, VLC, Android), pick H.264 as the output codec.
Yes. Add multiple trim segments — each pair of start time + duration produces a separate output clip. Useful for pulling several highlights from a recorded movie, splitting a long iMovie export into chapters, or extracting every appearance of a specific scene from a downloaded episode.
There's no fixed cap. Cutting runs on our servers, so the practical limit is upload size and connection speed and your patience for the file load. Multi-GB iTunes 4K downloads and hours-long iMovie exports work fine. Processing time scales with the length of the segment you keep, not the full source duration.
Cut first. Cutting only processes the segment you keep, which shrinks the file before the slower conversion step. A 5-minute clip pulled from a 90-minute M4V transcodes to MP4 far faster than transcoding the full file and trimming the MP4 afterward. See M4V to MP4 for the conversion step.
Same operation in practice. Some editors reserve "trimming" for shaving the start and end of a clip while keeping the middle, and "cutting" for extracting a middle portion or splitting at a point. XConvert's cutter handles all three patterns through the same start time + duration controls. See Trim M4V for the same workflow framed slightly differently.