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FREE TOOL · LOCAL-FIRST
Media converter
Convert supported audio/video locally with browser FFmpeg; enter mp3, wav, mp4 or webm for a real codec conversion, or leave blank to extract audio.
Local preview only. No automatic upload, account, payment or recurring report.
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Inputs stay in this browser unless a capability is explicitly marked as gated. This tool provides calculations or local transformations, not professional, legal, medical or financial advice.