12NOTEZ · Free Tools
Free Online Music Tools
Every 12NOTEZ tool in one place — a precise metronome, a mic-based instrument tuner, an authentic tanpura drone, tabla loops, a key finder and a searchable song key/BPM database. All free, no signup, running right in your browser.
Precise tap-tempo metronome with time signatures, subdivisions and accents.
Mic-based tuner for guitar, bass, ukulele, violin, mandolin, cello and banjo.
Authentic tanpura drone in all 12 keys — for riyaaz, meditation and yoga.
Studio-recorded tabla loops to practise and jam along with.
Drop in any audio and detect its musical key, scale and BPM instantly.
Look up the key, BPM, Camelot code, scale and chords of popular songs.
A guided practice companion for Indian classical vocal training.
Ear-training, pitch-matching and interval games to sharpen your ear.
Metronome by tempo
Popular BPMs, each with the metronome preset and songs at that tempo:
Tuner by instrument
Standard tuning, string notes and how-to for each instrument:
Browse songs by key
Scale, chords, raga and every song in each key:
Frequently Asked Questions
Are the 12NOTEZ music tools free?
Yes — every tool (metronome, tuner, tanpura, tabla, key finder and the song database) is completely free, with no signup or login.
Do the tools work on mobile?
Yes. All tools run in your phone or laptop browser. The tuner and key finder use your microphone; the metronome and tanpura play through your speakers or headphones.
Is my audio private?
Yes. The tuner and key finder process audio entirely in your browser — nothing is uploaded, and your microphone audio never leaves your device.
Can I embed these tools on my own website?
Yes — the metronome and tuner have free embed codes (look for the “Embed on your site” box on each tool) you can paste into any page.