Custom Tuning Tuner
Build any tuning you like, from 3 to 12 strings, then tune to it with your microphone or by ear. Your custom tuning is saved on this device.
- Free, no sign-up
- Any note on any string
- 3 to 12 strings
- Saved on your device
Reference pitch (A4)
Hz
Lower it in noisy rooms
Press Start tuning, then play a string
0/6 tuned
Standard notes
A4 = 440 Hz| String | Note | Frequency |
|---|---|---|
| 6 | E2 | 82.41 Hz |
| 5 | A2 | 110.00 Hz |
| 4 | D3 | 146.83 Hz |
| 3 | G3 | 196.00 Hz |
| 2 | B3 | 246.94 Hz |
| 1 | E4 | 329.63 Hz |
Your tuning, your rules
Pick a note for every string in the editor next to the headstock. Add or remove strings for tenor guitars, 7-strings or anything in between.
The tuning is saved in your browser, so it is still there the next time you open this page.
Keyboard shortcuts
- Space Start or stop the microphone
- 1–9 Play a string’s reference note
- M Switch Auto / Manual mode
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Set each string
Choose a note for every string in the custom tuning editor. Use Add string or Remove string to change the count.
-
Start the tuner
Press Start tuning and allow the microphone, then play one string at a time.
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Tune until green
If the needle points left, tighten the string. If it points right, loosen it. The string is in tune when the needle centres and turns green.
Frequently asked questions
How do I make a custom tuning?
Choose “Custom tuning…” in the tuning menu (on this page it opens automatically), then pick a note for each string. Your changes are saved straight away.
Is my custom tuning saved?
Yes, it is saved in your browser on this device. Nothing is uploaded, so it won’t appear on your other devices.
Can I tune instruments other than guitar?
Yes. Set any notes on 3 to 12 strings to tune a tenor guitar, a lap steel or a folk instrument. For wind instruments and voice, the chromatic tuner is easier.
All guitar tunings
Standard & down-tuned
Drop
Open
Alternate
7-string
8-string
12-string & guitalele
More tuners
- Bass Tuner 4, 5 and 6-string bass, from drop D to BEAD. E A D G
- Ukulele Tuner Soprano, concert, tenor and baritone ukulele. G C E A
- Violin Tuner G D A E with bowed reference tones. G D A E
- Viola Tuner C G D A, a fifth below the violin. C G D A
- Cello Tuner C G D A, an octave below the viola. C G D A
- Double Bass Tuner Upright bass in orchestral and solo tuning. E A D G
- Banjo Tuner Open G, double C, sawmill, tenor and Irish tenor. G D G B D
- Mandolin Tuner Mandolin, mandola and octave mandolin. G D A E
- Chromatic Tuner Any instrument or voice, with B♭/E♭/F transposition.
Music tools
- Metronome Accurate online metronome with accents and subdivisions.
- Tone Generator Play any frequency from 20 Hz to 20 kHz.
- Tuning Fork 415, 432, 440, 442 and 444 Hz forks.
- Pitch Detector See the exact note and frequency you play. C
- Custom Tuning Tuner Build any tuning with 3 to 12 strings. E A D G B E
- Tune Guitar by Ear Repeating reference notes for every string. E A D G B E