Music Tools
Tap tempo, metronome, chord finder, scale builder, tuner, and more — all free, in your browser, with no download or signup.
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Song BPM Finder by Tapping
Tap along to any song to find its BPM instantly. Rolling average, history log, and copy-to-DAW format — free, offline, no upload.
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BPM Tap Tempo
Tap any button or key to calculate BPM instantly — perfect for DJs, producers, and musicians who need to match tempo without a metronome.
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Online Metronome
Free online metronome from 20–300 BPM with a visual beat indicator and accent on beat 1 — works in any modern browser, no plugin or download needed.
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Chord Finder
Find the notes and intervals for any chord instantly — major, minor, 7th, diminished, augmented, and more, all in your browser without signup.
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Scale Builder
Build major, minor, harmonic minor, pentatonic, blues, and all 7 modal scales — see every note name and semitone interval for any root note, instantly.
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Online Tuner (A=440 Hz)
Reference pitch tuner at A4=440 Hz — play any note from C1 to B7 for tuning guitar, bass, violin, piano, and other instruments directly in your browser.
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Interval Trainer
Learn and identify musical intervals — hear perfect, major, minor, augmented, and diminished intervals played back using Web Audio in your browser.
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Note Frequency Calculator
Calculate the frequency in Hz and MIDI note number for any musical note across all octaves — uses the A4=440 Hz equal temperament standard, browser-based.
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Time Signature Counter
Count beats in 4/4, 3/4, 2/4, 6/8, 5/4, and 7/8 time signatures with a visual beat indicator — set BPM and practice counting or conducting.
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Key Transposer
Transpose chord progressions and song keys up or down any number of semitones — paste your chords and use the semitone presets for instant key changes.
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Rhythm Note Calculator
Calculate note durations in milliseconds and seconds for any BPM — whole, half, quarter, eighth, and sixteenth notes, ideal for delay and reverb settings.
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WAV to MP3 Converter — No Upload
Convert WAV files to MP3 entirely in your browser — no upload, no server, no file size cap. Pick your bitrate and download your MP3 offline in seconds.
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MP3 Cutter — Free, No Upload
Cut and trim MP3 files in your browser with waveform preview, fade in/out, and an iPhone ringtone 39 s preset. 100% client-side — no upload, no server, no size limit.
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WAV to MP3 Converter No Upload
Convert WAV to MP3 in your browser — no upload, no server, no file size cap. FFmpeg WebAssembly runs locally. Choose 128, 192, or 320 kbps.
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Voice Changer Online — No Upload
Change your voice online with pitch shift, reverb, echo, and robot effects. No upload, no signup — 100% client-side Web Audio API. Works on MP3, WAV, and more.
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About these music tools
Whether you're a guitarist finding the right chord, a producer dialling in tempo, or a student learning intervals, these tools cover the essentials of music theory and practice — all running locally in your browser with no data sent to any server.