Cut and trim MKV video files online. Set precise start and end points, adjust codec and quality settings, and download instantly.
Process files in seconds with our optimized servers
Set exact start and end points with frame accuracy
Maintain original quality with smart re-encoding
MKV (Matroska Video) is a flexible container format popular for storing high-definition movies and TV shows with multiple audio tracks, subtitles, and chapter markers. However, MKV files are often large — a single 1080p movie can exceed 4 GB — making them impractical to share via email, messaging apps, or social media without trimming.
Common reasons to trim MKV files include extracting a specific scene from a movie, removing unwanted intros or credits, cutting a long recording down to a highlight reel, or splitting a lecture into shorter segments. Unlike re-encoding the entire file, trimming removes only the parts you don't need while preserving the original quality of the segment you keep.
XConvert's MKV trimmer works entirely in the browser — no software to install, no file size limits on free accounts, and your files are processed securely without permanent storage.
| Feature | MKV | MP4 | WebM | AVI |
|---|---|---|---|---|
| Multiple audio tracks | ✅ Yes | Limited | ❌ No | ❌ No |
| Subtitle support | ✅ Embedded | External only | ❌ No | External only |
| Chapter markers | ✅ Yes | ❌ No | ❌ No | ❌ No |
| Browser playback | ❌ Limited | ✅ Universal | ✅ Most browsers | ❌ No |
| Typical file size (1080p, 2hr) | 4–8 GB | 2–4 GB | 1–3 GB | 6–10 GB |
| Best for | Archiving, home theater | Sharing, streaming | Web embedding | Legacy systems |
If you need to share your trimmed clip on the web, consider converting to MP4 after trimming — MKV isn't natively supported by most browsers and social media platforms. You can do this with our MKV to MP4 converter.
Yes. When you trim without changing the codec or compression settings, XConvert performs a near-lossless cut that preserves the original video and audio quality. Only the unwanted portions are removed. If you change the codec or apply compression, some re-encoding occurs, but you control the quality level via the CRF slider or quality preset.
Enter the start time of the scene in the "Start time" field (e.g., 1:23:45.000 for 1 hour, 23 minutes, 45 seconds) and the duration you want to keep in the "Duration" field (e.g., 120 for 2 minutes). The trimmer accepts both seconds and HH:MM:SS.sss format.
XConvert supports H.264, H.265 (HEVC), VP9, AV1, DivX, MPEG-2, MPEG-4, Xvid, and more. H.264 is the most compatible choice for playback on phones and computers. H.265 produces smaller files at the same quality but requires more processing time.
XConvert handles large MKV files that many online tools reject. There is no hard limit on the free tier for file size — you can trim multi-gigabyte movie files directly in your browser.
Yes. Upload multiple MKV files and set trim points for each one. All files are processed in batch and can be downloaded together as a ZIP archive.
MKV is not natively supported by most web browsers (Chrome, Safari, Firefox). If you need browser playback, convert your trimmed MKV to MP4 using our MKV to MP4 converter. MP4 with H.264 codec plays in virtually every browser and device.