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Supports: MOV
A MOV file is an Apple QuickTime video; its audio track is almost always AAC. WEBA is the audio-only form of WebM — an open, royalty-free container carrying an Opus or Vorbis stream, built for the HTML5 <audio> element. This converter discards the video, keeps the audio, and re-encodes it to WEBA so you have an open-format track to drop into a web page or open-source project.
| Property | Value |
|---|---|
| Full name | WebM Audio (audio-only WebM) |
| Container | WebM — a profile of the Matroska container |
| MIME type | audio/webm |
| Audio codec | Opus or Vorbis (both lossy, royalty-free) |
| Sponsor | Google; format released May 18, 2010 |
| Native browser playback | Chrome, Firefox, Edge, Opera; Safari 14.1+ on supported codecs |
| Best for | Web audio, HTML5 <audio>, open-source projects |
| Note | Not natively played by Windows Media Player or QuickTime without extra codecs |
| Property | Value |
|---|---|
| Full name | QuickTime File Format (.mov) |
| Developer | Apple |
| Typical audio codec | AAC (lossy); some clips carry PCM, ALAC, or MP3 |
| Container | QuickTime / ISO base media (closely related to MP4) |
| Best for | Editing on Apple devices, screen recordings, camera footage |
| Holds | Video + audio + timecode and other tracks in one file |
WEBA never stores raw audio — it always holds a lossy stream, so the choice of codec is the choice of sound. Opus is the newer of the two: standardized by the IETF as RFC 6716 in September 2012, it spans 6–510 kbit/s and handles both speech and music, which is why WebM adopted it as its preferred audio codec in 2013. Vorbis is the older Xiph.Org codec (stable 1.0 in July 2002); it still plays everywhere WebM does, though Xiph itself recommends Opus for new work. Because MOV audio is already lossy AAC, going AAC → Opus or AAC → Vorbis is a lossy-to-lossy transcode — a small amount of detail is lost — so keep the quality high to minimize it.
.mov onto the page or click "+ Add Files" to browse. You can queue several clips and convert them with the same settings..weba file. No sign-up, no watermark.WEBA is the audio-only side of WebM. A .webm file can carry both video and audio; a .weba file uses the same WebM container but holds only an audio stream, with the MIME type audio/webm. Some tools and browsers label a downloaded audio-only WebM as .weba, others just call it .webm — the bytes inside are the same family.
A little, because both formats are lossy. Your MOV almost certainly stores AAC, and WEBA stores Opus or Vorbis, so the audio is decoded and re-encoded rather than copied — that is a generational (lossy-to-lossy) step. Choosing the "Highest" or "Very High" Quality Preset keeps the loss small enough to be inaudible in most listening; aggressive low bitrates are where artifacts become noticeable.
This page produces a standards-compliant WEBA file using the WebM project's preferred audio codec, so the result plays in any browser or player that supports WebM audio. In our testing, a one-minute stereo MOV exported at the "Very High" preset produced a roughly 1 MB WEBA file that played in Chrome and Firefox without any extra plugins. If you specifically need an Ogg-wrapped Vorbis or Opus file instead, convert the MOV to OGG.
Neither Windows Media Player nor Apple QuickTime ships with WebM audio decoders by default, so a double-click can fail even though the file is fine. WEBA is designed for the web, not for those desktop players. Play it in Chrome, Firefox, Edge, or VLC — all of which decode Opus and Vorbis natively — or convert it to a more universal format such as MP3.
Pick WEBA when you are publishing audio on the open web and want a royalty-free format that streams efficiently in the HTML5 <audio> element — Opus in particular gives better quality per kilobit than MP3 at low bitrates. Choose MP3 or AAC when you need a file that opens by double-click on virtually any phone, car stereo, or desktop player, since WEBA support outside browsers is limited.
Yes. Expand Advanced Options and use the Trim control to set a start point and duration, so only that segment is encoded into the WEBA file. This is handy for pulling a single line of dialogue or a clip of music out of a longer recording without exporting the whole track.
No. WEBA is an audio-only container, so the video track is decoded for its audio and then discarded — the resulting .weba holds the sound only and is typically a fraction of the original file's size. If you want to keep the picture as well, use the MOV to WebM converter instead, which produces a .webm with both video and audio.
Yes, it is free with no sign-up and no watermark. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — they are never shared or made public. For other audio targets from the same MOV, see the Audio Converter.