Add your WEBM file
Drop one or more .webm files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Pulling the soundtrack out of a .webm video into .ogv audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Pulling the soundtrack out of a .webm video into .ogv audio keeps what you can hear and drops the picture entirely. A .webm file is an open, royalty-free video container built specifically for the web. It restricts itself to free codecs, VP8, VP9, or AV1 for video with Vorbis or Opus for audio, so any browser can play a .webm without patent licensing concerns.
An .ogv file is video packed in the Ogg container, typically compressed with the Theora codec and paired with Vorbis audio. The .ogv extension separated video from Ogg audio when Xiph.Org split its file naming, and it appears mostly in open-source projects and Wikipedia's media archives. For this route the practical draw is royalty-free from container to codec with no patent baggage and streams and seeks well despite its age — balanced against theora's compression is a full generation behind even VP8, which is worth knowing before you commit a large batch.
The usual reason to take .ogv audio out of a .webm file is that only the sound matters — a talk, interview, song, or podcast segment. Keeping the video stream would waste storage, and a dedicated audio file is easier to trim, tag, and play. On the source side, older iPhones and legacy Safari versions cannot play it; on the target side, the payoff is royalty-free from container to codec with no patent baggage, which is exactly what you want for playing media downloaded from Wikimedia Commons.
| Aspect | WebM video (.webm) | Ogg video (.ogv) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | structured as a deliberately restricted subset of Matroska's EBML layout | uses Ogg's page-and-packet framing, which supports live streaming and survives truncation gracefully |
| Strongest at | serving HTML5 video without codec license fees | playing media downloaded from Wikimedia Commons |
| Weak spot | older iPhones and legacy Safari versions cannot play it | theora's compression is a full generation behind even VP8 |
| Metadata | only a minimal set of Matroska tags such as title and language is defined for WebM; the spec deliberately omits attachments and rich tagging | vorbis comments in the audio stream carry artist and title tags, and the Ogg Skeleton track can describe the streams themselves |
Drop one or more .webm files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .ogv in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if OGV is selectable, the route is real and validated.
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid OGV file. Outputs keep the original filename with the .ogv extension.
Since webm is container-oriented and ogv is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .ogv itself requires.
Yes — the .webm file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded. Close the tab and the file is gone from memory.
Firefox retains Theora playback and Chromium-based browsers have begun deprecating theirs, while Safari and mobile platforms never supported .ogv at all. VLC and ffmpeg decode it everywhere, making conversion to WebM or MP4 straightforward.
Much smaller — the video stream is usually 80–95% of a .webm file's weight, and it is discarded entirely. The remaining audio is re-encoded at the bitrate implied by your quality setting.
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, only a minimal set of Matroska tags such as title and language is defined for WebM; the spec deliberately omits attachments and rich tagging; none of it is transmitted anywhere because the file never leaves your browser.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .webm → .ogv → .webm is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.