DECK is a small, free tool that pulls the audio out of an MP4 video and saves it as an MP3 — nothing more. It was built to solve one specific, annoying problem: needing an MP3 from a video clip without installing software or uploading anything to a stranger's server.
Every conversion happens inside your own browser tab. Your video file is decoded and re-encoded entirely on your device — it's never sent anywhere, which means no waiting on uploads, no file size limits imposed by a server, and no privacy trade-off. Close the tab and everything's gone, exactly as it should be for a tool like this.
DECK is an independent, one-person project — not affiliated with any video platform or software company. If it saved you a step, a coffee tip on the main page helps keep it free and ad-light.
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