Video to Audio Extractor
Pull the audio track out of a video and save it as MP3 or WAV.
About this tool
Pulls just the audio track out of a video file — no picture, just sound. Choose MP3 or WAV to convert it, or "Original (no re-encoding)" to pull the audio stream out byte-for-byte exactly as it's stored in the video — no quality loss and much faster, since there's no re-encoding step. Runs entirely in your browser using ffmpeg.wasm, a WebAssembly build of the real ffmpeg; your video is never uploaded anywhere.
The ffmpeg engine (about 32MB) is only downloaded the first time you use this tool, not when the page loads.
Frequently asked questions
- Does this work if the video has no audio track?
- No — if the source video is silent, there's nothing to extract and the process will fail with an error.
- Why did nothing happen for a while after I clicked extract?
- The first click downloads and initializes the ~32MB ffmpeg engine, which takes a moment depending on your connection. After that first load, extraction itself is usually fast — "Original" in particular finishes almost instantly, since it just copies the existing audio data instead of re-encoding it.
- What's the difference between MP3, WAV, and "Original"?
- WAV is uncompressed — larger files, no quality loss. MP3 is compressed and much smaller, with a small, generally inaudible quality trade-off at higher bitrates. "Original" doesn't re-encode at all — it copies the video's existing audio stream (whatever codec it already uses — AAC, Opus, MP3, etc.) directly into a
.mka(Matroska Audio) file, which is truly lossless and very fast, but is a less universally recognized file type than MP3/WAV — most modern players (VLC, most phone/desktop media apps) open it fine, but double-check before relying on it somewhere very format-strict. - Is my video uploaded anywhere?
- No — the entire process, including the ffmpeg engine itself, runs locally in your browser via WebAssembly. Nothing is sent to any server.