Audio from Video Extractor

Extract audio from MP4, MOV, WebM, and other video files directly in your browser. No upload, completely private.

🔒 All processing happens locally in your browser. Your video is never uploaded.

🎬

Drop a video file here

or click to browse — MP4, MOV, WebM, MKV, AVI, M4V

Filename—

File Size—

MIME Type—

Duration—

Resolution—

Source Audio Track

Codec
—

Bitrate
—

Channels
—

Sample Rate
—

Duration
—

Output Mode

⚡ Fast Extract

Copy original audio stream without re-encoding. Fastest, preserves quality.

🎵 Convert to MP3

Universal format. Compatible with all devices and players.

📀 Convert to WAV

Uncompressed audio. Lossless, large file size.

🎧 Convert to M4A

AAC format. Good quality at smaller size.

Advanced Audio Settings

Bitrate

Channels

Sample Rate

Estimated Output Size

—

Loading media engine (31 MB)… This only happens once.

✅ Audio Extracted

How It Works

This tool uses a local browser-based media engine (FFmpeg compiled to WebAssembly) to read the video file, remove the video stream, and export only the audio track. Everything runs in your browser — no server, no upload, no external connections.

Extraction Modes

Fast Extract — Copies the original audio stream without re-encoding. This is the fastest option and preserves the original audio quality. MP4/AAC → .m4a, WebM/Opus → .webm.
Convert to MP3 — Re-encodes audio to MP3 with selectable bitrate (64–320 kbps). Compatible with virtually all devices.
Convert to WAV — Decodes to uncompressed PCM audio. Lossless but large file sizes.
Convert to M4A — Re-encodes to AAC with selectable bitrate. Good quality-to-size ratio.

Advanced Settings

Open "Advanced Audio Settings" to control bitrate, channels (mono/stereo), and sample rate. Use presets for quick configuration: Speech (64 kbps mono), Music (192 kbps stereo), High Quality (320 kbps), or Archive (AAC 320 kbps).

Privacy

Your video never leaves your device. The 31 MB media engine is loaded once and cached by your browser. No analytics contain any information about your files.

FAQ

Why does the first extraction take longer?

The media engine (FFmpeg WASM, ~31 MB) needs to be loaded once. After that, it's cached by your browser and subsequent extractions start instantly.

Can I process very large video files?

Files up to ~500 MB work well in most browsers. Larger files (500 MB – 2 GB) may work but depend on your device's available memory. Files over 2 GB may fail due to browser memory limits.

Which mode should I choose?

Use Fast Extract if you want the highest quality and fastest speed. Use MP3 if you need maximum compatibility. Use WAV for audio editing. Use M4A for a balance of quality and file size.

What if my video has no audio?

The tool will detect this and show a clear message. No extraction will be attempted.

Should I increase the bitrate above the source?

No. If the source audio is 128 kbps, encoding at 320 kbps will not improve quality — it only increases file size. The tool will warn you when this happens.