BPM, note frequency, transpose and metronome.
Free music tools: BPM tap counter, delay time, note frequency, transpose, interval and chord finders, and a metronome. Equal temperament math, all in your browser. All 20 tools below are free, run entirely in your browser, and need no sign-up.
Free BPM tap tempo tool. Tap a key or button in time with any song and read the tempo in beats per minute instantly in your browser.
Free delay and reverb time calculator. Enter a tempo in BPM and get delay times in milliseconds and Hz for every note value from whole to sixteenth.
Free note to frequency calculator. Pick a note name and octave to see its exact pitch in Hz using equal temperament with A4 tuned to 440 Hz.
Free frequency to note converter. Enter any pitch in Hz and get the closest musical note, octave and how many cents sharp or flat it sits.
Free semitone frequency calculator. Enter a starting frequency and a number of semitones to see the resulting pitch in Hz using 12-TET math.
Free musical interval calculator. Pick two notes and see the interval name, the number of semitones and the frequency ratio between them.
Free key transpose calculator. Enter a musical key and a number of semitones to instantly get the new transposed key, up or down.
Free online metronome. Set any tempo and time signature and get an accurate Web Audio click track right in your browser, no download needed.
Free time signature reference. Learn what the top and bottom numbers mean, simple versus compound meter, and common signatures with beat groupings.
Free tempo marking reference. Look up Italian tempo terms like largo, andante and allegro with their beats per minute ranges, or find the term for a BPM.
Free chord note finder. Pick a root note and chord quality like major, minor or dominant seventh to see the exact notes that make up the chord.
Free scale note finder. Choose a key and a mode or scale type like major, minor or dorian to list all the notes in the scale instantly.
Free cents calculator. Convert a frequency ratio or two pitches into cents, the fine pitch unit where one hundred cents equals a semitone.
Free reverb decay time calculator. Enter a tempo in BPM to get tempo synced reverb decay and pre delay times in milliseconds for tight mixes.
Free octave frequency calculator. Enter a frequency and shift it up or down by whole octaves to see how the pitch doubles or halves in Hz.
Free note wavelength calculator. Enter a musical note or frequency to find its sound wavelength in air, useful for speaker and room acoustics.
Free audio sample rate reference. Compare 44.1 kHz, 48 kHz and higher rates, learn the Nyquist limit, and estimate uncompressed file size per minute.
Free MIDI note number calculator. Convert between MIDI note numbers, note names and frequency in Hz where middle C is MIDI 60 and A4 is 69.
Free BPM to Hz converter. Turn a tempo in beats per minute into a frequency in hertz for setting LFOs, tremolo and modulation to the beat.
Free song length calculator. Enter tempo, bars and time signature to work out how long a section or full track runs in minutes and seconds.
Yes. Every music tool on yourhack.ai is completely free, with no sign-up and no usage limits.
Yes. They run in any modern web browser on phone, tablet or desktop. There is nothing to install.
Yes. These tools run entirely in your browser, so nothing you enter is uploaded to a server.
There are currently 20 free music tools here, and we add more regularly.