Convert MPEG-4 Part 14 (.mp4) 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 .mp4 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.
MP4 to OGV conversion transcodes your MPEG-4 video into the Ogg Video format using the Theora video codec and Vorbis audio codec. OGV is a completely open, royalty-free video format maintained by the Xiph.Org Foundation. It was the first open video codec to gain widespread browser support and was instrumental in the early HTML5 video movement before WebM and AV1 emerged.
Our converter transcodes the MP4 video stream to Theora and the audio to Vorbis, muxing both into the Ogg container with the .ogv extension.
OGV is relevant when you need a completely patent-free, open-source video format. Some organizations, particularly in government, education, and open-source communities, have policies requiring royalty-free media formats. Wikipedia uses Ogg Theora for all video content. LibreOffice Impress embeds OGV for presentations. Firefox historically preferred OGV before adding H.264 support. While WebM (VP8/VP9) has largely succeeded OGV for new content, existing Theora-based systems still require this format.
FFmpeg transcodes the MP4 H.264 video to Theora using the libtheora encoder. Quality targets range from 0 (lowest) to 10 (highest), with 6-7 producing good results for web delivery. Audio is re-encoded to Vorbis. Theora is based on VP3, an older codec from On2 Technologies, and is significantly less efficient than H.264 or VP9 — expect larger files or lower quality at equivalent bitrates. Maximum practical resolution is 1080p, though Theora performs best at 480p-720p.
Theora is an older codec that cannot match H.264's compression efficiency. At equivalent bitrates, Theora produces softer, more artifact-prone output. For acceptable quality at 720p, target bitrate should be 2-4 Mbps (compared to 1-2 Mbps for H.264). At 480p and below, the quality difference narrows. For new projects, consider WebM (VP9) as a more efficient open alternative.
| Device | MP4 | OGV |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Native | Partial |
| iPhone/iPad | Native | Partial |
| Android | Native | Partial |
| Linux | Partial | Partial |
| Web Browser | Native |
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
OGV serves the open-source and patent-free content ecosystem. While not as efficient as modern codecs, it remains necessary for Wikipedia uploads, LibreOffice presentations, and organizations committed to royalty-free media.
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| Egenskap | MP4 | OGV |
|---|---|---|
| Fullt navn | MPEG-4 Part 14 | Ogg Video |
| Filendelse | .mp4 | .ogv |
| Best egnet for | Universal compatibility | Open source |