About LoveMusic

LoveMusic started with a simple frustration: almost every “free” audio tool online wants an upload, an account, or a subscription. We believe quick music tasks — checking a track’s tempo, finding its key, slowing a solo down to learn it — shouldn’t cost money or your privacy.

So we built the opposite of that: tools that run entirely on your device. Your audio is decoded and processed by your own browser through the Web Audio API — no upload, no account, no file storage. And for the heavier jobs that need neural networks too large for a browser tab (vocal removal, stem splitting), we kept the same instinct: your file is uploaded once, processed, and deleted immediately after.

How it works

No magic, just well-established DSP running where you already are:

Web Audio API

Every tool decodes, analyzes, and renders audio with the browser's built-in DSP engine — the same technology behind professional DAWs' real-time paths.

Phase vocoder

Speed and pitch tools use a phase-vocoder with identity phase locking to stretch time and shift pitch independently — the classic algorithm from studio time-stretchers.

Krumhansl-Schmuckler

Key detection builds a 12-bin chromagram and correlates it against perceptual key profiles — a published, peer-reviewed music-cognition method.

HRTF spatialization

The 8D converter rotates sound around your head using head-related transfer functions, the binaural math that makes headphones sound three-dimensional.

Privacy by architecture

Most audio sites promise not to misuse your uploads. We start by not having them: six of our tools run entirely in your browser, so nothing is ever uploaded — open your browser’s network tab while using one and you’ll see no audio ever leaves your machine. The AI stem tools do upload, transparently: the file goes to the model once, comes back as stems, and is deleted immediately. No storage, no training on your audio, no accounts.

What’s next

We’re working on AI music generation, shipped with the same local-first philosophy. Follow the tools as they land on the tools page.

Get in touch

Found a bug, have a feature idea, or want a tool we haven’t thought of? Reach us at hello@lovemusic.ai.