Steven Frady

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Extract OGG Audio from MKV

Free online audio converter. Pull the audio out of MKV video as OGG right in your browser. Files are never uploaded anywhere.

Choose an audio or video file, or drop it here
Output
Other conversions
MP3 → WAVMP3 → AIFFMP3 → FLACMP3 → OGGMP3 → M4AMP3 → OpusWAV → MP3WAV → AIFFWAV → FLACWAV → OGGWAV → M4AWAV → OpusAIFF → MP3AIFF → WAVAIFF → FLACAIFF → OGGAIFF → M4AAIFF → OpusFLAC → MP3FLAC → WAVFLAC → AIFFFLAC → OGGFLAC → M4AFLAC → OpusOGG → MP3OGG → WAVOGG → AIFFOGG → FLACOGG → M4AOGG → OpusM4A → MP3M4A → WAVM4A → AIFFM4A → FLACM4A → OGGM4A → OpusOpus → MP3Opus → WAVOpus → AIFFOpus → FLACOpus → OGGOpus → M4AMP4 → MP3MP4 → WAVMP4 → AIFFMP4 → FLACMP4 → OGGMP4 → M4AMP4 → OpusMOV → MP3MOV → WAVMOV → AIFFMOV → FLACMOV → OGGMOV → M4AMOV → OpusWebM → MP3WebM → WAVWebM → AIFFWebM → FLACWebM → OGGWebM → M4AWebM → OpusMKV → MP3MKV → WAVMKV → AIFFMKV → FLACMKV → M4AMKV → Opus

About MKV and OGG

MKV is the Matroska container — a flexible box that can hold nearly any codec. OBS and most screen recorders write it by default.

OGG Vorbis is a free, open lossy codec that beats MP3 at equivalent bitrates. It's common in game audio and open-source software, and every modern browser plays it.

Extracting audio from MKV re-encodes only the audio track — the video is discarded, so even long files finish quickly.

How the conversion works

This tool runs FFmpeg — the same engine behind most media software — compiled to WebAssembly, entirely in your browser. Your file is read locally, converted locally, and saved straight from memory; nothing is ever uploaded, which also means no queues and no server-side file size limits.

The converter itself is a one-time ~31 MB download on your first conversion, cached by the browser afterwards. Once it's loaded, everything works offline.

A free tool by Steven Frady, a creative developer building apps, shaders, and interactive installations. See the work.