Free Music Production & DJ Tools
A complete set of free, browser-based utilities for DJs and producers — calculate delay times, convert bars to time, tap out a tempo, mix in key with the Camelot wheel, plan BPM transitions, and detect the key of any track. No signup, nothing to install.
BPM Delay Calculator
Calculate precise delay times in milliseconds for any BPM, including dotted and triplet 1/4, 1/8, and 1/16 note values.
Bars to Time Calculator
Convert bars to an exact duration. Find out how long 16, 32, or 64 bars last at your track's tempo, in seconds and minutes.
Tap Tempo
Tap along to any song to find its BPM. Works with mouse clicks or the keyboard — ideal for quickly reading a track's tempo by ear.
Camelot Wheel Calculator
Find harmonically compatible keys for DJ mixing. Click any Camelot key (1A–12B) to see every key it blends with, plus a full 24-key chart.
BPM Transition Helper
Plan smooth tempo changes between tracks with half-time, double-time, and gradual BPM transition suggestions.
Key Finder
Detect the musical key and Camelot code of any song. Drop in an audio file and it's analysed privately in your browser — no upload, no software, no account.
Keep Exploring
References and guides that pair with these tools