Initializing... drag & drop files here
Supports: MP4, M4V
M4V is Apple's MPEG-4 video container — the format iTunes movies, TV episodes, and personal exports use — and inside it sits an AAC audio track next to the H.264 video. This tool pulls the audio out of that file and re-encodes it as Ogg Vorbis, the open, royalty-free codec from the Xiph.Org Foundation that game engines and Linux software expect. The video is discarded, so you get sound only. One honest caveat up front: if your M4V is a movie or show purchased or rented from the iTunes Store, it is almost certainly wrapped in Apple's FairPlay copy protection and cannot be converted — only DRM-free M4V works (see the FAQ).
.m4v (or .mp4) file onto the page or click "+ Add Files" to browse. Several files queue and convert with the same settings..ogg file. No sign-up, no watermark.| Target | Bitrate | Channels | Best for |
|---|---|---|---|
| Voice / dialogue | 48–80 kbps | Mono | Pulling a lecture, interview, or dialogue clip off an M4V export |
| Balanced | 96–128 kbps | Stereo | Spoken word with background, general listening |
| Transparent music | 128–160 kbps | Stereo | A game-engine sound asset or song where file size still matters |
| Headroom | 192–256 kbps | Stereo | Keeping margin before any later re-encode |
No. Movies and TV shows purchased or rented from the iTunes Store are usually wrapped in Apple's FairPlay copy protection, which restricts playback to devices authorized with the purchasing Apple account. A FairPlay-protected M4V cannot be decoded by a converter, so the extraction will fail. Only DRM-free M4V files — your own screen recordings, exports, camera footage, or downloads that were never encrypted — can be converted to OGG. This is a limitation of the protection on the file, not of the tool.
No. Ogg Vorbis is an audio-only codec, so the H.264 video in your M4V is dropped and only the soundtrack is saved as a .ogg file. That is the purpose of this tool — lifting a song, dialogue, a lecture, or ambient sound off a video. If you want to keep the picture and only change the container, convert to a video format with M4V to MP4 instead.
Yes, a little — this is a re-encode, not a copy. The audio inside an M4V is AAC, which is already lossy, and Vorbis is also lossy, so the track is decoded from AAC and re-compressed as Vorbis. Each lossy pass discards a little more detail, and the second pass cannot rebuild what the first one removed. Vorbis is efficient enough that at 128–160 kbps the result is transparent to almost everyone; the loss only matters if you re-edit and re-export many times. To keep loss small, match or exceed the source bitrate rather than going lower. In our testing, a 60-second stereo AAC track from an M4V extracted to Vorbis around 160 kbps came out near 1.2 MB.
It depends on what reads the file. Vorbis is the right pick when the target specifically expects classic .ogg — Unity, Unreal, and Godot use Vorbis as their default compressed audio, and plenty of mods and older open-source software assume it. Opus is the newer Xiph codec: the Xiph.Org Foundation has recommended deprecating Vorbis in its favor since February 2013, and it holds detail better at low bitrates, especially for speech. If your pipeline is modern or voice-heavy, extract to Opus instead. If you just need the audio to play on phones, browsers, and car stereos everywhere, extract to MP3 for the broadest compatibility.
No. Ogg is only the container; what is inside defines the file. This converter writes Vorbis audio in an Ogg wrapper — the classic .ogg most software means when it asks for OGG. A .ogv file is video in the same Ogg container, and an Opus file is a different, newer Xiph codec (also often Ogg-wrapped). If a program specifically wants Opus rather than Vorbis, choose that output format instead of OGG.
Your M4V is uploaded over an encrypted connection, processed on our servers, and the files are deleted automatically a few hours after the conversion — no sign-up, no watermark, never shared or made public. The main practical limit is upload size and time: M4V files carry full video, so a long clip may take a while to upload even though the .ogg you get back is small. To keep just a section, set a Trim start and duration, or run the result through the Audio Cutter afterward.