Extract audio from any video file instantly in your browser. No uploads, no installs, 100% private.
Drop your video here or click to browse
MP4, MOV, WebM, AVI, MKV supported
Every video file is a container that holds separate streams of data — typically one video stream and one or more audio streams. When you extract audio from a video, the tool reads the audio stream from the container and saves it as an independent audio file. The video stream is discarded, leaving you with just the sound.
This process is handled by FFmpeg, the industry-standard multimedia framework used by professional video editors, streaming services, and media players worldwide. Our tool runs FFmpeg compiled to WebAssembly directly in your browser, giving you professional-grade extraction without installing software or uploading files to a server.
Our extractor supports the most common video formats: MP4 (the most widely used video format), MOV (Apple QuickTime, used by iPhones and Macs), WebM (open web format used by browsers), AVI (legacy Windows format), and MKV (Matroska, popular for high-quality video). Each of these containers can hold audio encoded in various codecs — our tool handles the conversion automatically.
Audio bitrate determines both the quality and file size of your extracted audio. For spoken content like podcasts, interviews, or lectures, 128 kbps is more than sufficient and keeps file sizes small. For music, 192-256 kbps provides excellent quality that satisfies most listeners. Audiophiles and professional use cases may prefer 320 kbps MP3 or lossless WAV, though the quality difference above 256 kbps is subtle.
As a reference point: a typical 3-minute song at 128 kbps is about 2.8 MB, at 192 kbps it is about 4.2 MB, at 256 kbps about 5.6 MB, and at 320 kbps about 7 MB. WAV (uncompressed) would be approximately 30 MB for the same duration.
Traditional online converters require you to upload your video to their servers. This creates privacy concerns — your personal videos, meeting recordings, or copyrighted content passes through third-party infrastructure. Our tool eliminates this risk entirely. The FFmpeg WebAssembly module runs in your browser's sandboxed environment. Your files are read from your local disk, processed in memory, and the result is saved back to your device. No network requests carry your data, and closing the browser tab clears everything from memory.
The trim feature lets you select a specific portion of the video's audio to extract. This is particularly useful when you want a short clip from a long recording — a memorable quote from an interview, the chorus of a song, or a specific section from a lecture. Set the start and end times, and only that segment is processed and saved, resulting in a smaller file and faster processing.