Convert XviD MPEG-4 Video (.xvid) to Matroska Video (.mkv) online for free. Fast, secure video conversion with no watermarks or registration.
Upload your .xvid file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mkv file when it's ready.
XviD, the open-source MPEG-4 Part 2 codec born from reverse-engineering DivX, became the standard codec for scene releases and internet video sharing during the 2000s. The name — DivX spelled backwards — declared its community-driven, anti-proprietary philosophy. XviD files in AVI containers, typically at the iconic 700 MB CD-rip size, were the dominant format for sharing movies before H.264 and MKV took over.
MKV (Matroska Video) is the modern open-source container that succeeded AVI as the preferred format for high-quality video distribution. Matroska supports virtually any video and audio codec, multiple subtitle tracks, chapter markers, and rich metadata — all features that AVI fundamentally lacks. Converting XviD to MKV brings scene-era content into the modern container ecosystem.
AVI has severe technical limitations that make XviD files problematic for modern workflows. AVI does not support variable frame rate content, has unreliable subtitle embedding, lacks chapter marker support, and has a practical file size limit of 2 GB (or 4 GB with OpenDML extensions). MKV eliminates all of these limitations while maintaining the open-source philosophy that both XviD and Matroska share.
MKV also enables proper soft subtitle support. XviD scene releases commonly shipped with separate SRT subtitle files — MKV can multiplex these directly into the container alongside the video, creating a single self-contained file with selectable subtitle tracks. For anyone managing a legacy XviD collection, MKV remuxing is the most straightforward upgrade path.
For remuxing (container change only), FFmpeg copies the XviD MPEG-4 Part 2 video and MP3 audio streams directly into the MKV container without re-encoding — this is nearly instantaneous and introduces zero quality loss. External SRT/ASS/SSA subtitle files can be multiplexed in the same operation. For full transcoding, the video is decoded from MPEG-4 ASP and re-encoded to H.264 or H.265 within MKV for better compression and modern device compatibility.
Remuxing preserves 100% of the original XviD quality — the video and audio bitstreams are copied without modification. Full transcoding to H.264 can produce better visual quality at the same file size (or the same quality at a smaller file size) due to H.264's superior compression efficiency. XviD's typical 800-1500 kbps at 480p can be matched at 500-900 kbps in H.264 with equivalent visual quality.
| Device | XviD | MKV |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
XviD to MKV conversion brings the open-source scene release era's content into the modern open-source container ecosystem, with options ranging from lossless remuxing to full H.264 transcoding for maximum efficiency.
Безпечна передача
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Конфіденційність передусім
Файли автоматично видаляються після обробки
Без реєстрації
Почніть конвертацію миттєво
Працює всюди
| No |
8MB free, 50MB Nitro
Будь-який браузер, будь-який пристрій
| Характеристика | XviD | MKV |
|---|---|---|
| Повна назва | XviD MPEG-4 Video | Matroska Video |
| Розширення | .xvid | .mkv |
| Найкраще для | Open source | Multiple audio tracks |