7By.in was built on a simple idea: powerful audio processing should be free, private, and work without uploading your files anywhere.
Existing vocal remover tools required you to upload your music to their servers, wait in queues, and often pay before even trying the result. That felt wrong.
With modern browser APIs, we realized the entire audio processing pipeline ā separation, cutting, joining, pitch shifting ā could run right in your browser. No server. No upload. No waiting.
We built 7By.in to prove that privacy-first, local-first audio tools could also be the best audio tools.
Built 7By.in from the ground up to prove that privacy-first, browser-native AI audio tools could be free, fast, and genuinely useful ā no uploads, no servers, no compromises.
We never see your audio. Zero telemetry on audio content. Your creative work is yours.
Built on Web Audio API standards. No proprietary plugins, no downloads required to use the tools.
We publish how our AI engine works. Download 7by-ai-engine.js and build with it freely.
7By.in is an Indian product, built for the world. Pricing reflects Indian purchasing power.
Built for musicians, podcasters, content creators and anyone who works with audio.
Two songs free every day means everyone gets access, regardless of budget.
7By.in uses cutting-edge browser APIs to deliver studio-quality results without a server.
Vocals (centred) are isolated via (L+R)/2. Instruments (wide stereo) via (LāR)/2. Pure signal processing ā no neural network required.
Non-realtime rendering at native sample rate. BiquadFilter nodes for stem extraction. No WebAssembly dependencies.
16-bit PCM encoding in the browser using ArrayBuffer + DataView. No third-party libraries. Lossless WAV output.