Online Violin Tuner
Tune your violin or fiddle with your microphone, or by ear with bowed reference tones. It covers standard G D A E, cross tunings and 5-string violin.
- Free, no sign-up
- Bowed reference tones
- Adjustable A4
- Private, on-device
Reference pitch (A4)
Hz
Lower it in noisy rooms
Press Start tuning, then play a string
0/4 tuned
Standard notes
A4 = 440 Hz| String | Note | Frequency |
|---|---|---|
| 4 | G3 | 196.00 Hz |
| 3 | D4 | 293.66 Hz |
| 2 | A4 | 440.00 Hz |
| 1 | E5 | 659.26 Hz |
Tuning in fifths
Violin strings are tuned G D A E, with each string a perfect fifth above the one below. Tune the A first, then the others. Bowing gives the tuner a steadier signal than plucking.
Playing with an orchestra? Many orchestras use A4 = 442 Hz. Open the settings and tap 442.
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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Start the tuner
Press Start tuning and allow access to the microphone. Hold your violin 20–50 cm from the mic.
-
Play one string
Pluck one string and let it ring. Auto mode shows the closest string. To stay on one string, switch to Manual.
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Adjust the peg or fine tuner
If the needle is on the left, tighten the string to raise the pitch. If it is on the right, loosen it. Stop when the needle is in the middle and turns green.
Frequently asked questions
What notes is a violin tuned to?
From the lowest string: G3, D4, A4 and E5. Each string is a perfect fifth above the one before.
Should I use the pegs or the fine tuners?
Use the pegs for big changes and the fine tuners (the small screws on the tailpiece) for the last few cents. As you turn a peg, push it gently into the pegbox so it doesn’t slip.
Which string should I tune first?
Start with the A string, because orchestras tune to it. Then tune D, G and E. Orchestras often use A4 = 442 Hz, which you can set in the settings.
Can I tune with the bow instead of plucking?
Yes. A steady bow stroke gives the tuner a cleaner, longer signal than plucking (pizzicato), so it is the most accurate way to tune.
All violin tunings
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