The simplest, most private way to turn videos into audio files. Pull music, dialogue or sound effects from any MP4, MOV, WebM, AVI or MKV file locally in your browser, with professional quality and no watermarks.
Ultra-fast conversion powered by WebAssembly, everything happens in your browser.
Drag the MP4, MOV, WebM, AVI or MKV file from your device, or click to browse. Files up to 2 GB supported, no account required.
Choose MP3 (universal, lightweight), WAV (lossless, professional editing) or M4A (better quality at the same bitrate, ideal for Apple). Adjust bitrate for the size/quality balance you need.
The WASM engine processes the video's audio stream in seconds, with no unnecessary re-encoding. Live progress and an audio preview before download.
Your MP3, WAV or M4A saves directly to your device. The original video never leaves your browser, no server-side copy ever exists.
Built for journalists, podcasters, students and creators who care about both their time and their data.
We extract the AAC, MP3 or Opus audio stream directly from the MP4/WebM container when possible, zero re-encoding, zero quality loss.
Three formats cover 99% of use cases: MP3 for portability, WAV for professional editing, M4A for the Apple ecosystem.
MP4, MOV, WebM, AVI, MKV, FLV. Drag-and-drop or click to upload from your device. Files up to 2 GB supported.
WebAssembly processing in your browser: your videos never touch an external server. Perfect for interviews, recorded calls or confidential material.
No upload queues, no server backlogs. A 30-minute video processes in 5–10 seconds on modern hardware.
No server-imposed size limits (only your device's RAM), no watermarks, no sign-up, free forever.
Everything you need to extract the perfect audio without losing quality or privacy.
DuneTools extracts the audio from the container without re-encoding when possible, final quality matches the original video.
If the original video is at 128 kbps, exporting to 320 kbps doesn't add quality, only file weight.
Especially critical for journalists, lawyers, doctors and any professional handling confidential material.
If you work with audio, this is the fastest, most private tool you can use, no installation.
Pick the format that matches your end use.
| Format | Quality | Compression | Typical Size | Best For |
|---|---|---|---|---|
| MP3 | Lossy | Good (192–320kbps) | Universal, podcasts, casual music | |
| WAV | Lossless | Uncompressed (10× size) | Professional editing, mastering | |
| M4A (AAC) | Lossy | Excellent (better than MP3) | iPhone, iTunes, Apple ecosystem | |
| OGG | Lossy | Good (open source) | Web, games, open-source software |
Quick answers about the tool