Free SongRemixer tools
Free, no-account tools that run entirely in your browser. Nothing is uploaded — your audio never leaves your device.
Free
Interactive Camelot Wheel
Click a key, see everything that mixes with it — the harmonic mixing chart, live.
Open the tool → FreeBPM Transition Calculator
From-BPM to to-BPM: pitch drift, stretch percentage, and the halftime path.
Open the tool → FreeKey & Tempo Shifter
Change pitch and tempo independently — remix prep, rendered in your browser.
Open the tool → FreeMashup Compatibility Checker
Drop two songs — get keys, tempos, and an honest verdict on the blend.
Open the tool → FreeMini A/B Practice Decks
Two decks, tempo faders, crossfader — practice transitions in the browser.
Open the tool →Looking for more? Browse every free tool in the ProduceHits suite.