Ten practical browser tools
Sound LabSolve the question. Get back to the music.
Online music tools are most useful when they stay out of the way. Tune a string, catch a tempo, check a chord, or turn a frequency into a physical length. Each tool here has one job and gives you a result you can use at the instrument.
Free browser utilities
Choose the job in front of you.
Microphone tools ask first. When the local-only implementation rule is met, the page analyses the live signal in your browser and does not save a recording.Tune
Listen to one steady note and see what needs to move.
Keep time
Set a pulse, identify one, or match an effect to it.
Metronome
Set the pulse you need, not the one your hands keep drifting toward.
Open tool → timeTap tempo
Hear the pulse, tap with it, and get a BPM estimate without chasing the first beat.
Open tool → timeTempo delay calculator
Enter the tempo once. Read the delay times for the note values you actually use.
Open tool →Work with pitch
Move between written notes, frequencies, intervals, and chords.
Note frequency
Pick a note, choose an octave, and see the frequency behind the name.
Open tool → pitchTone generator
Choose a frequency and waveform, then play a steady reference tone at a cautious level.
Open tool → pitchInterval trainer
Hear two notes, name the distance, and find out which intervals still blur together.
Open tool → pitchChord finder
Choose a root and quality. Get the notes, interval formula, and a playable example without guessing the spelling.
Open tool →Measure acoustics
Use a simple physical model, with its assumptions left visible.
Online music tools that begin with a real task
These online music tools are small working instruments, not decorative demos. Use the chromatic tuner to identify a steady pitch, choose a guitar tuning preset, set a metronome click, tap an unknown tempo, convert a note to hertz, play a reference waveform, practise intervals, spell a chord, calculate delay time or estimate an organ pipe's acoustic length.
Each tool runs in the browser. Microphone features ask permission before listening. Generated tones and clicks begin only after a button press. Calculators update from visible inputs and keep their units beside the result. Nothing on the page should require an account before a musician can answer the question that brought them here.
Choose the tool by the problem
- Pitch: use the chromatic tuner for any sustained note or the guitar tuner for seven common six-string setups.
- Pulse: use the metronome for a planned BPM or Tap Tempo when the tempo must be found by feel.
- Reference: use Note Frequency or Tone Generator when a precise note, hertz value or waveform is needed.
- Harmony: use Interval Trainer for hearing distance and Chord Finder for spelling, inversion and playback.
- Production: use Tempo Delay to translate BPM into straight, dotted and triplet milliseconds.
- Organ acoustics: use Pipe Length to compare an ideal open or stopped air column at a stated temperature.
Start with moderate output. Browser tones are references, not hearing tests or calibrated sound-level measurements. A microphone tuner reports the strongest periodic signal it can identify; room noise, another open string, a sharp attack or automatic device processing can make the display jump. Change the source before turning the peg.
Know whether the result was heard, generated or calculated
A tuner analyses microphone input. A metronome or tone generator schedules audio. A frequency, delay or pipe result comes from an equation. Those outputs deserve different kinds of trust. A calculated quarter-note delay at 120 BPM is exactly 500 milliseconds within the stated formula. A microphone reading depends on the device, room and signal. An ideal pipe length still omits mouth geometry, diameter, end correction, tuning devices and voicing.
The browser's audio system is described by the Web Audio API specification. The electronic tuner overview gives useful background on reference pitch and tuner types. Pipe & Tone's guides translate those ideas into the controls on each page and state where the model stops.
Take the number back to music
A useful session ends outside the browser. Tune a chord after tuning its individual strings. Remove metronome subdivisions and see whether the phrase keeps its pulse. Paste a delay value into the actual mix and listen around the vocal. Sing an interval before naming it. Compare a pipe estimate with a documented builder measurement rather than treating it as a cut list.
Open the metronome for the most complete rhythm control, or continue to Learn when the number raises a question about vibration, resonance or rooms.