Chromatic Tuner
Tune any instrument to any note online in seconds.
What it detects
No fixed strings, every note is a target.
Chromatic mode has no preset strings. It listens across a wide frequency range and reports the closest of all 12 notes, C, C#, D, D#, E, F, F#, G, G#, A, A#, and B, along with how many cents you are from that note's center pitch.
How to tune to Chromatic
- 1Tap Start Tuning. Allow microphone access. Everything runs in your browser, nothing is recorded or uploaded.
- 2Play or sing a sustained note. Any pitched instrument works: guitar, bass, ukulele, violin, brass, or your own voice.
- 3Read the detected note. The tuner shows the closest note name and octave to what it hears, out of all 12 chromatic pitches.
- 4Watch the cents display. It shows how far you are from that note's center pitch. Adjust until the reading locks and turns green.
What is Chromatic tuning
A chromatic tuner detects any of the 12 notes in Western music, C, C#, D, D#, E, F, F#, G, G#, A, A#, and B, across multiple octaves, rather than listening only for the six strings of standard guitar tuning. It works out what note you're playing and how far it sits from the nearest semitone, using the same equal temperament math behind every fretted instrument: frequency equals 440 times two raised to the power of the semitone distance from A4. Given a frequency, this tuner reverses that formula, rounds to the nearest semitone, and shows the cents of drift from that target.
That's what makes chromatic mode universal. It doesn't need to know what instrument you're playing, so it covers alternate tunings a preset tuner won't, like DADGAD, Open G, or Nashville tuning, plus non-guitar instruments such as violin, mandolin, banjo, and voice. Singers use it for warm-ups and pitch matching, and players use it to check intonation, comparing an open string against its 12th-fret harmonic and fretted note to see whether they agree.
Most guitarists still reach for a preset tuner for everyday standard or Drop D tuning since it's faster, and switch to chromatic for anything a fixed string set doesn't cover.
Frequently asked
What is a chromatic tuner?
A chromatic tuner detects any of the 12 notes in Western music, C, C#, D, D#, E, F, F#, G, G#, A, A#, B, across multiple octaves. Unlike a guitar-specific tuner that only listens for E, A, D, G, B, and high E, a chromatic tuner tells you exactly what note you're playing and how far it is from the nearest semitone.
When should I use a chromatic tuner instead of a guitar tuner?
Use chromatic for alternate tunings a standard tuner doesn't cover (DADGAD, Open G, Nashville), non-guitar instruments (violin, mandolin, banjo, harmonica, brass, voice), ear training, or when you want to verify which note you're hitting before tuning to a target.
How accurate is it?
Same YIN pitch-detection engine as the guitar tuner. Accurate to within a couple of cents in a quiet room with a single sustained pitch. Chromatic mode uses a wider frequency range, 35 Hz to 2 kHz, covering bass low B up through guitar 15th-fret high E and most vocal range.
Does it work for singers?
Yes. Hum or sing a sustained note. The tuner shows you what pitch you're producing in real time. Useful for warm-ups, matching pitch to a song's key, or training your ear to recognize specific notes. Pick a quiet room, voice tuning is more sensitive to background noise than instrument tuning.
Why does the note jump octaves while I play?
Two reasons. First, harmonics: a plucked string has strong overtones at 2x and 3x the fundamental, and pitch detection occasionally locks onto one. Second, the pluck attack contains many frequencies before the fundamental stabilizes. Wait a second after picking and the note will settle.
Does the tuner support flats?
The display uses sharps (C#, D#, F#, G#, A#) since most guitar players think in sharps. Enharmonic equivalents: C# = Db, D# = Eb, F# = Gb, G# = Ab, A# = Bb. The frequency is identical, just two names for the same pitch.
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If your guitar still doesn't sound right after tuning to Chromatic, buzzy frets, intonation drift up the neck, or action that fights you, a proper setup will change everything. Based in Pikeville, NC, serving Goldsboro and Wayne County.