About JustExtractAudio
JustExtractAudio is a free, privacy-first tool that extracts audio from video files. All processing happens client-side in your browser using WebAssembly technology — no files are ever uploaded to a server.
Our Mission
We believe that extracting audio from a video should be simple, free, and private. Most online converters require you to upload your files to their servers, creating privacy risks and long wait times. JustExtractAudio eliminates both by processing everything locally in your browser.
How It Works
Under the hood, JustExtractAudio uses ffmpeg.wasm — a WebAssembly port of the powerful FFmpeg multimedia framework. This means the same proven technology used by professionals runs right in your browser, without needing to install any software.
Supported Input Formats
MP4, AVI, MOV, MKV, WebM, and more. If your browser can handle the file, we can extract its audio.
Supported Output Formats
Convert to MP3, WAV, AAC, OGG, or FLAC — choose the format that fits your needs.
No Limits
No file size restrictions, no watermarks, no signup required. Extract as many files as you want, completely free.
Works Offline
Once the tool loads in your browser, it works without an internet connection. Perfect for working on the go.
Built by One Developer
JustExtractAudio is built and maintained by a solo developer who believes in creating simple, useful tools. If this tool saved you time, consider leaving a tip to help keep it free for everyone.
Ready to Extract Audio?
Start extracting audio from your videos now. No signup required.
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