Music Tools
Practice rhythm with free, browser-based music tools. No install, no tracking.
About Music Tools
Toolvica's music tools run 100% in your browser. Practice timing and rhythm without installs or uploads.
All processing is local — your audio never leaves your device. Works offline once loaded.
What you can do with Music Tools
Rhythm & Tempo
Keep perfect time with the metronome, tap any song to find its BPM, convert BPM to ms for any time signature, detect tempo from audio files, and calculate bar lengths for 9 meters from 2/2 to 12/8.
Tools: Metronome · BPM Tapper · BPM Calculator · BPM Finder · Time Signature Calculator
Pitch & Tuning
Tune guitar, bass, ukulele, violin and more with live mic detection, look up the exact Hz for any note with custom A4, and generate pure tones for tuning, testing speakers, and ear training.
Tools: Tuner · Note Frequency Calculator · Tone Generator
Analysis & Production
Detect musical key and Camelot code with chromagram analysis, and get exact delay, reverb and LFO times in ms, Hz and samples for 44.1/48 kHz.
Tools: Key Finder · Delay Calculator
Why musicians use these tools
Runs in your browser
Built on the Web Audio API — open and play, no download needed. Once loaded, it keeps working offline.
Your audio stays local
Files are decoded on your device and mic input is analyzed frame by frame, then discarded.
Accurate by design
Equal temperament at A4 440, BPM to milliseconds via 60,000 / BPM, and steady timing from a lookahead scheduler.
Works on any device
Touch-friendly and responsive — phone, tablet or desktop. Use Space to play/pause and tap to set tempo.
One flow, not many tabs
Copy a BPM or frequency, or send it straight to the metronome — from tapping to practicing without retyping.
Made for practice
Ten focused tools for timing, tuning and analysis — no accounts, no clutter, just play.
Start in 30 seconds
- 1. Find tempo Tap along in BPM Tapper or drop a file in BPM Finder.
- 2. Calculate Convert BPM to ms/bar in BPM Calculator or get delay times for your DAW.
- 3. Tune & check Tune with the mic, verify frequencies with Note Frequency, or play a reference tone.
- 4. Practice Open the metronome, set time signature and accents, and play — silent bars & speed trainer included.
BPM & Frequency at a glance
| Tempo | BPM | Beat | Note | Hz (A4 440) |
|---|---|---|---|---|
| Largo | 50 | 1200 ms | C4 | 261.63 Hz |
| Andante | 92 | 652 ms | A4 | 440.00 Hz |
| Moderato | 114 | 526 ms | A5 | 880.00 Hz |
| Allegro | 144 | 417 ms | E6 | 1318.51 Hz |
Beat = 60,000 / BPM ms. Frequency = 440 × 2^((MIDI-69)/12). Wavelength ≈ 343 / Hz in air.