UD5 Toolkit
Audio BPM Detector – Find Tempo of an Uploaded Track
Upload an MP3 or WAV file and get an estimated beats per minute using onset detection. DJs and musicians can quickly catalog track tempos.
Music Tools - Tuner & Metronome
32+ toolsConvolution Reverb Demo - Online Impulse Response Player
Apply realistic reverbs (cathedral, hall, room) to any audio using pre‑loaded impulse responses. Hear the difference instantly.
Online BPM Tapper - Tap to Find Beats Per Minute
Tap any key to the beat of a song and the tool calculates the BPM. Also shows average and millisecond delay for loops.
Web Audio Filter Chain - Online Biquad & Convolver
Apply lowpass, highpass, and reverb to an audio source. See frequency response. Create your own guitar pedal. All local.
Monophonic Synth - Online Play with Oscillator & Envelope
Play a simple monophonic synthesizer with your keyboard. Choose waveform, attack, decay, and filter. For music fun.
Audio Loudness Meter - Online LUFS & RMS Analyzer
Measure the integrated loudness of an audio file in LUFS and RMS. Check if your music meets streaming platform standards. Client‑side.
Web MIDI Keyboard Tester - Online Visual Note Display
Connect your MIDI keyboard and see pressed notes visually on a piano roll. Check velocity, channel, and aftertouch. No DAW needed.
Online Audio Reverb Tool - Add Room Ambience
Add artificial reverb to an audio recording. Choose from small room to large hall. Wet/dry mix. Convolution‑based.
Vocal Pitch Monitor & Tuner - Online Real‑Time Frequency
Sing or play an instrument into the mic and see the detected pitch on a real‑time chromatic tuner. Use for practice or ear training.
Advanced Tap Tempo - Online BPM Averaging & Rhythm
Tap any key multiple times. Shows average BPM, standard deviation, and a visual metronome beat. More accurate than simple tap.
Web MIDI Monitor - Online View Raw MIDI Messages
Connect a MIDI controller and see every message in a log. Filter by channel and type. Essential for debugging music apps.
Metronome with Subdivisions - Online Precise Rhythm Training
Advanced metronome with eighth, triplet, and sixteenth note subdivisions. Accent controls. Web Audio scheduling.
Drum Notation Reader - Online Percussion Staff Player
Paste a simple drum tab or select a pattern and hear it played. Learn drum set notation interactively.
Guitar Effect Chain Simulator - Online Virtual Pedalboard
Route your microphone input through a chain of virtual effects (distortion, reverb, delay) using Web Audio API.
Audio to MIDI Converter - Online Transcribe Melody
Analyze a monophonic audio recording and convert the pitch into a MIDI file. Perfect for capturing musical ideas. Client-side.
Random Chord Progression - Online Music Idea
Get a random chord progression (e.g., I‑V‑vi‑IV) with a suggested key. Play with built‑in piano sounds. For songwriters.
Scale & Mode Explorer - Online All Keys Fretboard/Piano
Pick a scale (Major, Harmonic Minor, Dorian…) and a root note. Shows the notes and highlights them on piano & guitar fretboard.
Online Piano Keyboard - Play & Record Simple Melodies
Play a virtual piano keyboard using mouse or computer keys. Sustain and octave control. Record and play back your tune.
Ukulele Tuner - Online GCEA Standard Tuning Notes
Play reference pitches for standard ukulele tuning. Also works for baritone and other variations. Simple and local.
Voice Pitch Chart - Online Soprano to Bass Reference
Interactive piano showing typical vocal ranges from Bass to Soprano. Highlight your range. For choir members.
Retro Synth Pad - Online 8‑bit Sound Generator
Play a collection of retro 8‑bit synth pads and leads using your keyboard. Record sequences and export as WAV. Pure Web Audio API.
Piano Sight Reading Trainer - Online Random Note Staff
A random note appears on the grand staff; click the correct piano key. Improve sheet music reading. Multiple clefs.
Custom Audio Equalizer - Online 10‑Band Adjust & Presets
A 10‑band graphic equalizer applied to any audio file or mic input. Save presets. All processing via Web Audio API.
Voice Pitch Detector - Online Live Mic Frequency
See the fundamental frequency (pitch) of your voice in real time using auto‑correlation. For singers and speech training. No upload.
MIDI Note to Frequency Converter - Online Music Tuning
Enter a MIDI note number (0–127) or a musical note name and get the exact frequency in Hz. Piano keyboard picker.
Bass Fretboard Trainer - Online Note Recognition Game
A random note name appears; click the correct position on the bass fretboard. Beat your time and accuracy.
Piano Chord Finder - Online Visual Keyboard & Notes
Click a root key and chord type (Maj, min, 7th) to see the notes highlighted on a piano keyboard. Learn chords fast.
Drum Pattern Sequencer - Online Create Beats & Play
Lay down a beat on a grid sequencer for kick, snare, and hi-hat. Play, loop, and adjust tempo. All sound via Web Audio API.
Beat Sync Tester - Online Tap Tempo & BPM Counter
Tap any key to the beat and get the BPM (beats per minute). Useful for DJs, musicians, and running. Simple and accurate.
WAV Oscilloscope - Online Visualize Audio Waveform & Spectrum
Load a WAV file and see its real-time oscilloscope trace and frequency spectrum. Zoom and pan. Pure frontend.
Online Metronome - Precise Beats per Minute & Time Signature
A precise online metronome with adjustable BPM, beat emphasis, and time signature. Works offline. Essential for musicians.
Audio Pitch Shifter - Online Change Key Without Speed
Shift the pitch of any audio clip by semitones without affecting playback speed. Perfect for music transposition. Local Web Audio.