About WebAudioTools.com

WebAudioTools.com is a collection of free, privacy-first audio utilities that run entirely in your browser. We believe simple audio tasks shouldn't require downloading software, creating accounts, or uploading your private files to someone else's server.

Every tool on this site uses WebAssembly to run audio processing directly on your device. When you convert a voice note or detect a BPM, the computation happens in your browser tab — no data ever leaves your machine.

Our Tools

• WhatsApp Voice Note to MP3 Converter — Convert OGG/OPUS voice notes to MP3
• BPM Tapper — Find the tempo of any song by tapping
• Audio Converter — Convert between WAV, MP3, FLAC, AAC, and OGG

Technology

WebAudioTools.com is built with Next.js 14 and Tailwind CSS, hosted on Vercel. Audio processing is powered by FFmpeg compiled to WebAssembly via the @ffmpeg/ffmpeg library. The BPM tapper uses the browser's native Web Audio API.

Privacy

We take privacy seriously. No files are uploaded to our servers — ever. See our Privacy Policy for full details.