DivX to MKV Converter
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Supports: DIVX
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Need help?How to Convert DivX to MKV Online
- Upload Your DivX File — Click "Choose Files" or drag and drop your .divx video. Batch conversion is supported.
- Set Quality — Under "File Compression," choose "Quality Preset" (Highest → Lowest, default "Very High") or switch to "Constant Quality" with CRF (0–51, default 23 for H.264), "Constant Bitrate" (default 4 Mbps), or "Variable Bitrate" (target 4, min 2, max 8 Mbps).
- Choose Video Codec (Optional) — Defaults to H.264. MKV supports the widest codec range of any container: H.264, H.265, AV1, VP8, VP9, DivX, Xvid, MPEG-1/2/4, Theora, HuffYUV (lossless), MJPEG, Flash Video, WMV 1/2, and MS MPEG-4.
- Choose Audio Codec (Optional) — Defaults to AAC. MKV also supports AC3, DTS, EAC3, FLAC, MP2, MP3, Opus, Vorbis, WavPack, Speex, PCM variants, WMA v1/v2, True Audio, and ADPCM.
- Adjust Resolution (Optional) — Keep original, pick a preset (144p–4320p), set by percentage, or enter exact width × height.
- Trim (Optional) — Set a start time and duration in seconds or HH:MM:SS.sss.
- Convert and Download — Click "Convert" and download your MKV file. No sign-up required.
Why Convert DivX to MKV?
DivX is a legacy MPEG-4 codec from the early 2000s DVD-rip era. MKV (Matroska) is the most versatile modern container — it supports virtually every video and audio codec, multiple audio tracks, subtitles, chapter markers, and metadata.
Converting DivX to MKV with H.264 modernizes old DivX-era video with better compression and universal playback support. MKV also offers better error recovery for large files and supports advanced features that DivX containers lack.
DivX vs MKV Comparison
| Feature | DivX (source) | MKV (output) |
|---|---|---|
| Video codec | MPEG-4 Part 2 | Any (H.264 default) |
| Multiple audio tracks | ❌ No | ✅ Yes |
| Subtitles | ❌ No | ✅ SRT, ASS, SSA |
| Chapter markers | ❌ No | ✅ Yes |
| Player support | DivX-certified devices | VLC, MPC-HC, mpv, Plex |
Frequently Asked Questions
Will converting DivX to MKV improve video quality?
Only if you re-encode with a better codec (H.264/H.265). The "Quality Preset" at "Very High" with H.264 will produce a better-compressed file. If you just want to repackage without re-encoding, use a muxing tool instead.
What audio codec should I choose?
AAC (default) for maximum compatibility. FLAC for lossless audio. AC3/DTS if you need surround sound.
Can I batch convert?
Yes. Upload multiple DivX files and download MKV results individually or as a ZIP archive.