Professional online tools for DJs and music producers. Calculate BPM, find song keys, adjust tempo, and more - all free in your browser.
Calculate beats per minute from time and beats. Essential for beat matching and tempo analysis.
Find the BPM of any song by tapping along to the beat. Real-time tempo detection.
Convert BPM to milliseconds for delay times, reverb settings, and sync calculations.
Detect the musical key of songs for harmonic mixing and mashup creation.
Calculate optimal transition points and tempo adjustments for smooth mixes.
Free DJ set length calculator. Plan your DJ set by calculating how many tracks you need, average track length, and total set duration
Generate practice sequences for scales, set tempo, direction, repeats, and play a simple tone or metronome.
Free mix compatibility checker. Check if two tracks are compatible for DJ mixing based on key and BPM analysis.
Transpose musical keys up or down by any number of semitones.
Convert beats per minute (BPM) to playback speed multiplier.
calculates how much pitch changes when tempo is changed without time-stretching
Pitch Detectors offers a suite of free, browser-based DJ and music production tools for accurate tempo, BPM, key, and pitch analysis. Perfect for DJs, producers, remixers, and music educators seeking professional-level tools without software installation.
Accurate BPM and tempo analysis is fundamental for beatmatching, rhythmic synchronization, and live performance preparation. Our tools support manual BPM calculation, tap tempo, BPM-to-ms conversions, and tempo-pitch correlation.
Ensure smooth transitions using key detection, pitch shifting, and harmonic mixing analysis. Tools help plan mashups, remixes, and harmonically aligned DJ sets.
Plan precise transitions and energy shifts between tracks. Analyze BPM and key compatibility to maintain consistent flow and professional set structure.
Plan your DJ set length, track order, and practice sessions efficiently. Combine scale practice with tempo and key analysis for comprehensive preparation.
Maximize your workflow with advanced techniques: