OGV (Ogg Video / Theora)
OGV is an open-source video format using the Theora codec within the Ogg container. It was promoted as a free alternative to H.264 for HTML5 video but has been largely superseded by VP9, AV1, and WebM.
MIME Type
video/ogg
Type
Binary
Compression
Lossless
Advantages
- + Completely open source and royalty-free
- + Supported in Firefox, Chrome, and VLC
- + Simple to encode with FFmpeg and other open-source tools
Disadvantages
- − Much lower compression efficiency than H.264, VP9, or AV1
- − Not supported by Safari, most mobile devices, or smart TVs
- − Development is essentially dormant — superseded by WebM/AV1
When to Use .OGV
Avoid OGV for new projects; use WebM (VP9/AV1) for open-source video or MP4 (H.264) for universal compatibility.
Technical Details
OGV uses the Ogg bitstream format with Theora video (DCT-based, similar to VP3) and typically Vorbis audio. Theora supports up to 1080p but offers lower compression efficiency than modern codecs.
History
Theora was developed by Xiph.Org Foundation based on On2's VP3 codec, released as open source in 2002. Firefox and Chrome supported Theora in early HTML5, but adoption stalled as H.264 and VP9 prevailed.