DIVX vs MKV
A detailed comparison of DivX Video and Matroska Video — file size, quality, compatibility, and which format to choose for your workflow.
DivX Video
Video FilesDivX is a video codec and container format based on MPEG-4 ASP that gained popularity in the early 2000s for compressing DVD-quality video to CD-size files. DivX-certified devices and players still support the format worldwide.
About DIVX filesMatroska Video
Video FilesMKV is a flexible, open-standard container format that can hold unlimited video, audio, subtitle, and metadata tracks. It is popular for high-definition video and supports virtually any codec.
About MKV filesStrengths Comparison
DIVX Strengths
- Massively efficient for the early-2000s era — 700 MB for a full movie was revolutionary.
- Universal desktop playback via Windows Media Player + DivX codec pack.
- Spawned a hardware ecosystem — DivX-certified DVD players.
- Open-source fork XviD keeps the format alive.
MKV Strengths
- Carries virtually any codec — H.264, H.265, AV1, VP9, Opus, FLAC, AAC, you name it.
- Multiple audio and subtitle tracks, chapters, and menus in one file.
- Patent-free container — no licensing fees.
- Attached fonts and metadata ride along for self-contained playback.
- Streamable and seekable with built-in index/cue tables.
Limitations
DIVX Limitations
- Patent-encumbered (MPEG-4 Part 2 patents).
- Obsolete — H.264 and HEVC compress 2-3× better.
- Quality degrades noticeably on fast-motion scenes.
- Tied to the aging AVI container and its 4 GB file size limit.
MKV Limitations
- Not natively supported in Apple's QuickTime or Safari without third-party tools.
- Windows needed codec packs (or "Films & TV" app updates) to play it out of the box.
- Hardware decoders on older TVs and streamers often reject MKV.
- Because it allows any codec, compatibility varies wildly by player.
Technical Specifications
| Specification | DIVX | MKV |
|---|---|---|
| MIME type | video/x-divx | video/x-matroska |
| Extensions | .avi (container), .divx (branded) | .mkv, .mka (audio), .mks (subtitles) |
| Codec | MPEG-4 Part 2 Advanced Simple Profile | — |
| Typical container | AVI | — |
| Open-source fork | XviD (patent-free) | — |
| Container structure | — | EBML (Extensible Binary Meta Language) |
| Related | — | WebM (restricted MKV subset) |
| Max tracks | — | Practically unlimited |
Typical File Sizes
DIVX
- 90-min movie (700 MB DivX target) ~700 MB
- 45-min TV episode (DivX rip) 350-500 MB
MKV
- 45-min episode (H.264 1080p) 800 MB - 1.6 GB
- 2-hour movie (H.265 1080p) 1.5-3 GB
- 2-hour movie (4K HDR H.265) 15-40 GB
- Anime episode with 8 subtitle tracks 300-800 MB
Ready to convert?
Convert between DIVX and MKV online, free, and without installing anything. Encrypted upload, automatic deletion after 2 hours.
Frequently Asked Questions
DIVX (DivX Video) is a video container format that bundles one or more video streams, audio tracks, and optional subtitles into a single file. The container format determines how metadata is organised and which codecs can live inside; the visual quality itself depends on the codec (H.264, H.265, VP9, AV1) rather than the DIVX wrapper. It is part of the video files family.
MKV (Matroska Video) is an open-standard multimedia container that can hold unlimited video, audio, subtitle, and metadata tracks in a single file. It is the preferred format for high-quality movie files and anime with multiple audio tracks.
VLC, MPV and PotPlayer play nearly every DIVX file on desktop. Browser support varies: modern Chromium, Firefox and Safari play common containers via the HTML5 <video> tag, but niche DIVX variants may fail. If a device refuses your DIVX, convert to MP4 with our DIVX to MP4 converter for universal playback.
MKV files play best in VLC (free, cross-platform), MPC-HC, PotPlayer, and Kodi. Some smart TVs and streaming devices support MKV directly. Windows 10/11 can play MKV files with built-in codec support.
Upload your DIVX to KaijuConverter and pick MP4, MOV, MKV, WebM, or any other target. Our pipeline uses FFmpeg under the hood and stream-copies when codecs are compatible (no quality loss) or transcodes at high-quality defaults otherwise. Conversion runs server-side; both files delete within two hours.
Only when the target requires re-encoding. If the codecs inside DIVX match what the target container supports, FFmpeg stream-copies the streams and the output is bit-identical to the source. Transcoding uses transparent quality defaults (CRF 20–23 H.264) and produces output indistinguishable from the original at normal viewing distance.