🎵 Audio Converter

Convert between audio formats and extract audio from video — entirely in your browser using FFmpeg.wasm.

⏳ Checking browser capabilities…

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Server Setup Required

One-time

FFmpeg.wasm requires Cross-Origin Isolation to access SharedArrayBuffer. Your web server must send these HTTP headers on all pages:

Cross-Origin-Opener-Policy: same-origin Cross-Origin-Embedder-Policy: require-corp

Local dev: npx serve -C . | Nginx: Add to server block | Apache: Add to .htaccess | Vercel/Netlify: Add to vercel.json or _headers file

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Drop audio or video files here

MP3WAV FLACAAC OGGOPUS M4AAIFF MP4MKV MOVAVI WebM

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Conversion Settings

Output Format

Bitrate

Sample Rate

Channels

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About FFmpeg.wasm

This converter uses FFmpeg.wasm — a WebAssembly port of the industry-standard FFmpeg library. All conversion happens entirely in your browser. No files are uploaded to any server. The FFmpeg WASM binary (~30MB) is downloaded once from a CDN and cached by your browser for subsequent conversions.

🔒 Files never leave your device

⚡ WebAssembly powered

🎬 Supports 300+ formats