Convert Matroska Video (.mkv) to Ogg Video (.ogv) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .mkv 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 .ogv file when it's ready.
OGV (Ogg Video) is the video variant of the Ogg container, combining Theora video with Vorbis audio in a fully open-source, royalty-free package. While largely superseded by WebM for web video, OGV remains relevant for open-source purism, Wikipedia video embeds, and legacy HTML5 fallback sources.
Wikimedia Commons, which hosts media for Wikipedia, standardized on Ogg Theora as its video format long before WebM gained traction. Millions of educational, historical, and documentary videos on Wikipedia are in OGV format. If you are contributing video content to Wikimedia projects, converting MKV to OGV is a requirement.
OGV also serves as a philosophical choice for the free software community. Projects that refuse to include any patent-encumbered technology (even if widely licensed, like H.264) use OGV exclusively. Linux distributions that ship only free software (Trisquel, PureOS) include OGV playback by default, and some organizations mandate it in their open-source compliance policies.
FFmpeg transcodes the MKV video to Theora using the libtheora encoder, and the audio to Vorbis using libvorbis, packaging both in an Ogg container. Theora encoding quality ranges from 0 (worst) to 10 (best). Theora's compression efficiency is roughly equivalent to H.264 Baseline profile — usable but noticeably less efficient than H.264 High or H.265. Maximum practical resolution is 1080p, though encoding becomes very slow at high resolutions due to Theora's age.
Theora at quality 7-8 produces acceptable results at 720p with bitrates around 2-4 Mbps. Compared to H.264 at the same bitrate, Theora shows more blocking artifacts in complex scenes and gradients. For informational content like screencasts, tutorials, and talking-head videos, the quality is perfectly adequate. For cinematic or high-motion content, expect visible compression artifacts compared to modern codecs.
| Device | MKV | OGV |
|---|---|---|
| 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
MKV to OGV is the right conversion when open-format compliance is mandatory, particularly for Wikimedia contributions and free software distribution.
Безпечна передача
Завантаження зашифровані через HTTPS
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 | MKV | OGV |
|---|---|---|
| Повна назва | Matroska Video | Ogg Video |
| Розширення | .mkv | .ogv |
| Найкраще для | Multiple audio tracks | Open source |