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Supports: HEVC, MOV, MP4, M4V, MKV
This walks through turning an HEVC (H.265) clip into an OGV — the Ogg container's video profile, registered as the video/ogg media type in RFC 5334 — and, just as importantly, when not to. HEVC is a patent-encumbered 2013 codec built for efficiency; Ogg video is a royalty-free format whose browser era has ended. Read the codec section before you convert, because the choice between VP8 and Theora decides whether your legacy tool will actually open the result.
.hevc or .h265 file onto the page, or click "+ Add Files". You can queue several clips and convert them with the same settings..ogv". Audio Codec offers Vorbis (preselected), Opus, FLAC, and Speex..ogv. Files are uploaded over an encrypted connection, converted on our servers, and deleted automatically a few hours later — no sign-up, no watermark.This is the decision that matters, and the default is not the historically "correct" one.
| Property | Theora | VP8 |
|---|---|---|
| Origin | Xiph.Org, derived from On2 VP3 | On2 / Google, published as RFC 6386 (2011) |
| Year | 1.0 released 2008 | 2010 |
| Licensing | Royalty-free (Xiph) | Royalty-free (Google open-sourced) |
| Efficiency | Roughly H.264-baseline class | Clearly better than Theora, roughly H.264 class |
| Ogg support | The original, expected mapping | Valid but uncommon; FFmpeg-based players handle it |
| Preselected here | No | Yes |
| Pick it when | A legacy tool asks for "Ogg Theora" | You want the best picture per byte in a .ogv |
| Property | HEVC (H.265) | OGV (Ogg video) |
|---|---|---|
| What it is | Video codec | Container profile — video/ogg per RFC 5334 |
| Standard | ITU-T H.265 / ISO-IEC 23008-2, 2013 | Xiph.Org Ogg; RFC 5334 (2009) |
| Licensing | Patent pools, licensing required | Royalty-free |
| Video codec inside | H.265 | Theora or VP8 |
| Audio codec inside | Whatever the container carries | Vorbis, Opus, FLAC, or Speex |
| Browser playback | Chrome 107+, Edge 18+, Firefox 120+, Safari 11+ (hardware-dependent) | Theora disabled by default in Chrome 120 and removed from Chromium in 123; disabled by default in Firefox 126; Safari never supported it |
| Desktop playback | VLC, mpv, modern OS players | VLC, mpv, and other FFmpeg-based players |
| Best for | Efficient storage and delivery | Legacy royalty-free pipelines |
.hevc elementary stream carries no audio track, so there is nothing to encode into the Ogg file. Convert the original container — the MP4, MKV, or MOV the video came from — if you need the audio.Ogg video is a legacy target in 2026. The open web moved to WebM (VP9) and AV1, both of which compress far better than Theora and still play natively in browsers, so converting to OGV only makes sense when something specific asks for it: an old open-source player, an embedded device, a MediaWiki-era pipeline, or a licensing policy that rules out patented codecs. If you want a modern royalty-free format, HEVC to WebM is the better choice; for universal playback on phones, TVs, and editors, use HEVC to MP4. Going the other way, OGV to HEVC reverses the conversion and compress OGV shrinks an existing Ogg video without changing its format. DRM-protected or truncated HEVC files cannot be re-encoded by any web tool.
VP8 is preselected on this page, and Theora is the alternative in the Video Codec list. Pick VP8 when you want the best picture per byte inside an Ogg file and you will play it in VLC, mpv, or another FFmpeg-based player. Pick Theora when a legacy tool, an embedded device, or a pipeline documented as "Ogg Theora" is the consumer — VP8 inside Ogg is a valid mapping but an uncommon one, and older software will not recognize it.
Usually, yes. HEVC was designed to halve H.264's bitrate; Theora is roughly H.264-baseline class and VP8 is roughly H.264 class, so both need more bits than H.265 to hold the same detail. Expect a same-quality OGV to be bigger than the source. Setting a Specific file size or dropping to a lower Preset Resolution keeps it in check, but no setting lets an Ogg file beat H.265 on compression.
Largely not. Theora shipped from Chrome 3, Edge 12, Firefox 3.5 and Opera 10.5, but Chrome disabled it by default at version 120 and Chromium removed it at 123, Edge followed at 122, Opera at 106, and Firefox disabled it by default at 126 — and Safari never supported it at all, so no current desktop browser decodes Ogg Theora video without a flag. Treat .ogv as a desktop-player and legacy-pipeline format, and use HEVC to WebM if the file needs to play in a browser.
Yes, some. This is a lossy-to-lossy re-encode: the H.265 picture is fully decoded and recompressed with Theora or VP8, and neither can recover detail the first encode discarded or match H.265's efficiency. Keeping the Quality Preset at "Very High" or higher and leaving Video resolution on "Keep original" limits the damage. Repeatedly round-tripping a clip through OGV and back compounds the loss each time.
Vorbis is preselected — the classic royalty-free Ogg audio codec from Xiph.Org — with Opus, FLAC, and Speex also available in the Audio Codec list. Vorbis is the safe pairing for a .ogv that legacy Ogg software will open. Opus is the better codec at low bitrates, FLAC is lossless but much larger, and Xiph itself states that Speex "has been obsoleted by Opus", so pick Speex only to match an old archive.
For almost any modern goal, yes. WebM with VP9 or AV1 gives far better compression than Theora and plays natively in Chrome, Firefox, Edge, and current Safari, while Ogg video has been dropped from those browsers. Convert to OGV only when a specific legacy tool or a royalty-free-only policy demands the Ogg container. Otherwise use HEVC to WebM for the web, or HEVC to MP4 for phones, TVs, and editors.
Because a bare .hevc file is a raw H.265 video elementary stream — by design it holds picture only, with no audio track to carry across. That is the format, not a conversion fault. If your footage has a soundtrack, it lives in the original container: convert that MP4, MKV, or MOV instead, and the Ogg output will include a Vorbis (or Opus/FLAC) audio track.
.ogv the same as .ogg?They are the same Ogg container with different extensions for different payloads. RFC 5334 registers .ogv for the video/ogg media type, .oga for audio/ogg, and .ogx for application/ogg, and keeps .ogg mainly for legacy Vorbis-only audio files. So a video should be .ogv; if you actually want audio-only output from this clip, use HEVC to OGA instead.
Your file is uploaded over an encrypted connection, converted on our servers, and the result is yours to download — no sign-up, no watermark, never shared or made public. Files are deleted automatically a few hours after conversion. For a very long clip the practical constraint is upload and download time over your connection rather than anything on your machine.