Free online WEBM to OGG converter

Some audio players, editors, and media workflows accept OGG but do not recognize audio in a WEBM container. Converting extracts the audio stream and saves it as Ogg Vorbis or Ogg Opus, while discarding any video.

What the WEBM format is

WEBM is an open media container designed primarily for web playback. It commonly stores VP8 or VP9 video with Vorbis or Opus audio, although audio-only WEBM files also exist. Browsers, screen-recording software, video platforms, and applications built on web-media libraries frequently create or distribute WEBM files.

WEBM describes the container, not a single codec. A file can contain video, audio, or both, and an audio conversion cannot preserve the video stream.

What the OGG format is

OGG is an open container commonly used for Vorbis or Opus audio. Ogg Vorbis offers broad compatibility with desktop players, audio editors, game engines, and Linux applications. Ogg Opus generally delivers better quality at low bitrates, especially for speech, but older software may support Vorbis more reliably.

Both Vorbis and Opus are lossy codecs. The .ogg extension identifies the container; check the codec as well when a receiving application specifies “Ogg Vorbis” or “Ogg Opus.”

Convert with 101convert.com

1. Open the WEBM-to-OGG converter on 101convert.com.
2. Select or drop the .webm file.
3. Choose OGG as the output format and start the conversion.
4. Download the resulting .ogg file and test it in the target player or editor.

This browser-based option requires no software installation. Do not upload confidential recordings unless the service’s current data-handling terms meet your requirements.

Convert with FFmpeg

FFmpeg provides control over the output codec, bitrate, quality, and stream selection. Install FFmpeg from a trusted package for your operating system, open a terminal in the folder containing the source file, and run:

ffmpeg -i input.webm -map 0:a:0 -vn -c:a libvorbis -q:a 5 output.ogg

-map 0:a:0 selects the first audio stream, -vn excludes video, and -c:a libvorbis encodes Ogg Vorbis. The Vorbis quality scale runs from 0 to 10; higher values produce larger files. Values from 4 to 6 are a practical range for general listening.

To create Ogg Opus instead, use a bitrate appropriate to the material:

ffmpeg -i input.webm -map 0:a:0 -vn -c:a libopus -b:a 128k output.ogg

About 96 kbps is often sufficient for speech and ordinary audio, while 128–192 kbps provides more margin for music.

Copy audio without re-encoding

If the WEBM already contains Vorbis or Opus audio, both codecs are compatible with the OGG container. You can attempt a lossless container change with:

ffmpeg -i input.webm -map 0:a:0 -vn -c:a copy output.ogg

Use ffprobe input.webm first to identify the audio codec. Stream copying is fast and preserves the encoded audio exactly, but it fails if the source codec is not suitable for OGG. It also does not improve the original quality.

Quality and compatibility limits

• Re-encoding an already compressed WEBM audio stream to Vorbis or Opus is lossy. Avoid repeated conversions and use -c:a copy when the source codec is compatible.
• A WEBM file without an audio stream cannot produce a useful OGG audio file; FFmpeg will report that no audio stream is available.
• Vorbis is usually the safer choice for older applications. Opus is often more efficient, but some legacy players and editors do not support it.
• Metadata, chapters, and cover art may not transfer consistently between WEBM and OGG. Check tags and artwork after conversion.