WebM to OGA Converter

How to Convert WebM to OGA Online

1. Upload Your WebM File: Drag and drop your .webm file into the upload area, or click "+ Add Files" to browse. Batch is supported — queue several clips and the same audio settings apply to each.
2. Pick a Codec and Quality Preset: Default is Vorbis at the "Highest" preset, which extracts the existing WebM audio with minimal re-encoding when possible. Switch to Opus for the best quality-per-kilobyte at 64–128 kbps (ideal for voice, podcasts, and streaming), to FLAC for lossless archival inside the Ogg container, or to Speex for narrowband voice. Need to hit a specific size? Toggle "File Compression" and set Specific file size, or switch to Custom Bitrate (Constant or Variable) to pin an exact kbps target.
3. Set Channels, Sample Rate, or Trim (Optional): Leave Audio Channel and Audio Sample Rate at ORIGINAL to preserve the source, or downmix to Mono and resample to 44100 Hz (CD-quality) or 48000 Hz (broadcast/web standard). Use Trim to cut a start offset and duration in HH:MM:SS.ms — useful for grabbing one segment of a long recording.
4. Convert and Download: Click "Convert" and the .oga file downloads when processing finishes. No account, no watermark, and files clear from our edge servers automatically.

Why Convert WebM to OGA?

WebM is a video container built for the web (VP8/VP9/AV1 video plus Vorbis or Opus audio), and a lot of useful audio lives inside it — screen recordings made with MediaRecorder, voice notes from web apps, browser-captured meeting clips, and downloaded chunks from sites that stream in WebM. Extracting that audio to a dedicated .oga file (per RFC 5334, the IETF spec that registered the extension in September 2008) tells media players "this is audio only" so they don't waste time looking for a video stream.

• Extract podcast or voice-memo audio from screen recordings — Chrome and Firefox's MediaRecorder API emits WebM/Opus by default; pulling the Opus track into a clean .oga file is the fastest path to an editable podcast source.
• Stay in the royalty-free Xiph ecosystem — Vorbis, Opus, FLAC, and Speex are all patent-unencumbered open standards, unlike AAC or MP3 which historically required licensing.
• Get a smaller file than MP3 at equivalent quality — Opus at 64 kbps is broadcast-grade for speech; Vorbis at 96 kbps typically beats MP3 at 128 kbps in listening tests.
• Feed Linux audio players and game engines that prefer Ogg — Rhythmbox, Audacious, Clementine, and engines like Godot and Unity ship native Ogg decoders without extra codec packs.
• Archive in FLAC inside an Ogg container — when you want lossless preservation but prefer Ogg's open container over the standalone .flac format (useful for muxing with skeleton metadata).
• Trim before exporting — pull a clean 30-second clip out of a 90-minute meeting recording without loading a desktop editor.

If you need MP3 instead, use WebM to MP3; for the more common .ogg extension, try WebM to OGG; for lossless or for the dedicated Opus extension, see WebM to FLAC and WebM to Opus.

OGA vs OGG vs MP3 — Format Comparison

Codec Picker — Which Ogg Codec for Which Job?

Opus has been the Xiph.Org Foundation's recommended codec for new projects since 2013 — it consistently outperforms Vorbis below 96 kbps in double-blind listening tests, and is standardised as IETF RFC 6716.

Frequently Asked Questions

What is the difference between .oga and .ogg?

Both use the same Ogg container and both are registered under the audio/ogg MIME type by RFC 5334 (September 2008). The spec says .oga should be used for audio files served as audio/ogg, particularly those carrying an Ogg Skeleton logical bitstream, while .ogg is retained mainly for backward compatibility with files that contain only a Vorbis bitstream. Practically, players that handle one almost always handle the other — pick .oga when you want the extension to clearly signal "audio only," and .ogg when older Windows software might refuse anything else.

Will an .oga file play in Safari and on iPhone?

Yes, on current versions. Apple shipped native Ogg Vorbis and Opus playback for the <audio> element in Safari 18.4 (April 2025), which covers macOS and iOS. Before that, Safari users needed a desktop player like VLC. Chrome, Firefox, Edge, and Opera have supported Ogg playback for over a decade — caniuse.com currently reports ~95% global browser support.

Should I pick Vorbis, Opus, or FLAC?

Pick Opus for almost any new project under ~128 kbps — it's the most efficient codec the Xiph.Org Foundation publishes, and it's what WhatsApp, Zoom, Discord, and YouTube use internally for voice. Pick Vorbis if you need to feed a legacy game engine, mod tool, or audio player that only decodes Vorbis. Pick FLAC when you need bit-perfect preservation and don't care about file size — expect roughly 50–60% of the original WAV size depending on content.

Why is my converted .oga much smaller than the source WebM?

Because we strip the video stream entirely. A WebM clip with VP9 video at 1080p might be 100 MB; the same 10 minutes of audio at Vorbis 128 kbps is around 9 MB, and Opus at 96 kbps is closer to 7 MB. No quality is lost on the audio side if you keep the original codec and bitrate.

Can I extract audio without re-encoding (lossless passthrough)?

If your source WebM already contains Vorbis or Opus and you select the same codec at the "Highest" preset with ORIGINAL channels and sample rate, the converter copies the audio stream into the new .oga container instead of re-encoding. That gives you a bit-perfect extraction. Changing the codec, bitrate, channel count, or sample rate forces a re-encode.

What sample rate and bitrate should I use for a podcast?

For spoken word, Opus at 48000 Hz, mono, 48–64 kbps is a sweet spot — modern podcast directories accept it and the file stays small. For music podcasts or mixed content, stay stereo and bump Opus to 96–128 kbps. Vorbis users typically choose 96–128 kbps stereo at 44100 Hz to mirror CD source material.

Will Chromecast, Sonos, or my car stereo play .oga files?

Coverage is uneven. Chromecast and most Android devices play Ogg Vorbis and Opus natively. Sonos has supported Ogg Vorbis since the early hardware generations. Many car infotainment systems built for MP3/AAC do not recognise .oga or .ogg — for those, convert to MP3 or AAC instead. Always test one file before re-encoding an entire library.

Can I trim a long recording and only export the relevant section?

Yes. Expand Advanced Options → Trim, set "Unchanged" to a start offset (HH:MM:SS.ms) and duration. The converter only encodes the requested range, so a 5-minute slice of a 2-hour file processes roughly 24× faster than the whole recording. If you need frame-accurate cuts across multiple regions, the audio cutter tool offers a waveform editor.

Is there a file size limit?

Free anonymous use accepts files up to the per-session cap shown on the upload widget. Signed-in accounts get a higher cap and faster queue priority. Files process on our edge servers and are auto-deleted after a short window — we don't keep your audio.