The Technology Behind Instant, Private Video-to-Audio Conversion
Updated: 11/6/2025
The Technology Behind Instant, Private Video‑to‑Audio Conversion
See It in Action
Drop a video file here to begin your instant, private conversion.
No uploads, no queues — processing happens locally in your browser.
Guarantee Your Privacy with In‑Browser Processing
Local‑first design: Your files never leave your device from start to finish.
No third‑party trust required, nothing is stored — maximum privacy and control.
How WebAssembly Delivers Lightning‑Fast Speed
No Upload Delays: Conversion starts instantly because the file is already on your device.
No Server Queues: You are the only user; no waiting on other jobs.
Efficient Processing: Optimized code extracts audio smoothly, even for large files.
Optimized for Modern Video Formats
Understands modern codecs: H.264 (AVC), H.265 (HEVC), and AV1.
Efficient in‑browser decoding gives fast access to the audio track while preserving quality.
Delivers your audio in seconds, with the original fidelity intact.
Frequently Asked Questions (FAQ)
Is my conversion truly private? Yes — all processing happens locally via WebAssembly; nothing is uploaded or stored.
Why is Vibbit faster than other online converters? Eliminating uploads/downloads removes the biggest bottlenecks; conversions start immediately.
Does this work on my computer? Works on modern browsers that support WebAssembly—Chrome, Firefox, Edge and Safari.