Free Extract Audio from Video
Pull the audio track out of a video and save it as MP3, WAV, or M4A. Nothing is uploaded, everything runs on your device.
What this does: extracts the audio track from a video file and saves it as MP3, WAV, or M4A, entirely in your browser using FFmpeg compiled to WebAssembly. It is free, needs no signup, and never uploads your video to a server. The first use downloads a ~31MB engine (cached afterward for instant reuse), and because it runs single-threaded in the browser tab it is slower than a desktop app on large files or mobile devices.
Click to select a video or drag and drop it here.
Frequently asked questions
Does this tool upload my video to a server to extract the audio?
No. Audio extraction happens entirely inside your browser using FFmpeg compiled to WebAssembly. Nothing is uploaded to any server; your video and the extracted audio never leave your device.
Why is there a delay before the first extraction starts?
The first time you use this tool, your browser downloads a ~31MB WebAssembly audio and video engine. It is cached afterward, so future visits and extractions start almost instantly.
Why does extraction take a while on large files or mobile devices?
The engine runs single-threaded in your browser tab instead of using your device's full processing power, so it is slower than a native desktop app, particularly with large video files or on mobile devices.