Extract audio tracks from video files as MP3 or WAV — 100% in-browser.
Upload a video and extract its audio as MP3 or WAV
Audio extraction runs entirely in your browser using ffmpeg.wasm. Your video file is never uploaded to any server.
About this tool
Extract audio from video as MP3 or WAV, 100% in your browser, no upload. Free.
What Is the Audio Extractor?
The Audio Extractor is a free, browser-based tool that separates the audio track from a video file and saves it as an MP3 or WAV file. It uses the browser's native WebCodecs API (or MediaRecorder API as fallback) to decode the video and encode the audio — all without uploading your file to a server. This means zero privacy risk and instant processing.
How to Extract Audio from a Video
Drop your video file into the tool or click to browse. Select the output format (MP3 or WAV) and choose a bitrate if MP3. Click extract, and the tool processes your video in seconds. Preview the extracted audio inline, then download the file. The entire process takes about 10-30 seconds for a typical 5-minute video.
Frequently asked
Is this audio extractor really free?
Yes, 100% free with no signup, no watermark, and no hidden costs. All audio extraction happens in your browser using the WebCodecs API. Your video file never leaves your device.
What audio formats are supported?
You can extract audio as MP3 (128, 192, 256, or 320 kbps) or WAV (lossless). MP3 is best for most uses; WAV preserves full audio quality but produces larger files.
What video formats can I extract audio from?
The tool supports MP4, WebM, MOV, AVI, MKV, and other formats supported by your browser's media decoder. For best compatibility, use MP4 (H.264 + AAC) or WebM.
Does my video get uploaded to a server?
No. The audio extraction runs entirely in your browser using the WebCodecs or MediaRecorder API. Your video file is processed locally and never uploaded to any server. There is no signup and no data collection.
What audio formats can it extract from video?
It extracts audio tracks as MP3 (adjustable bitrate 128-320 kbps) or WAV (uncompressed PCM, 44.1kHz/48kHz) from MP4, WebM, and MOV video files. A 10-minute 1080p video extracts to a 9.5MB MP3 at 128kbps in approximately 5 seconds. Processing uses the Web Audio API entirely in your browser.
Is my video file uploaded during extraction?
No. The video is decoded locally using your browser's built-in media engine. A 500MB video file never leaves your device—extraction reads the audio stream directly from the local file buffer. This makes it safe for extracting audio from confidential recordings, interviews, or unreleased content.
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