AudioForges takes a song apart in your browser. Drop a file and get the vocals, the instrumental or the stems (drums, bass, guitar, piano), full length as WAV or MP3. The first result is free with no sign up. Clean mode removes the bleed, and you hear 30 seconds of your own song before you pay. It also turns audio into MIDI and sheet music, finds the key, BPM and chords, and makes backing tracks in your key.

Hey Product Hunt! Solo dev and music producer here. I built AudioForges because I kept bouncing between sketchy converter sites and paid apps just to do basic things — grab a WAV from YouTube, find a track's key and BPM, split stems for a remix. So I started building my own tools, and it grew into 30+ free browser-based utilities: stem separation, key/BPM detection, transcription, format conversion, trimming, pitch shifting, a tuner and metronome, and more. No sign-up, no ads mid-workflow. Everything is free except a few GPU-heavy tools (HQ stems, long transcription) that run on credits to cover server costs. Would love feedback from any producers or DJs here — and happy to answer anything about the tech stack (Next.js + FastAPI + a lot of ffmpeg).

Small update for anyone running a music blog or site: I've made two of the tools embeddable, free, one line of HTML.

Key & BPM finder and audio-to-MIDI, both as iframes your readers can use directly on your page. No account, no API key, no cost. Just keep the attribution link.

Code + live preview: https://audioforges.com/embed

Happy to add a stem splitter version if anyone wants it.

Small update for anyone running a music blog or site: I've made two of the tools embeddable, free, one line of HTML.

Key & BPM finder and audio-to-MIDI, both as iframes your readers can use directly on your page. No account, no API key, no cost. Just keep the attribution link.

Code + live preview: https://audioforges.com/embed

Happy to add a stem splitter version if anyone wants it.

AudioForges

Remove vocals and split any song into stems, free to start

Remove vocals and split any song into stems, free to start