Nouplo

Violin tuner

G, D, A, E — tuned to the orchestra’s A.

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–cents

Strings

Tap a string to hear its note and tune to it; tap again to go back to automatic

Nothing leaves your device

This tool runs entirely in your browser. What you type, play or record here stays on your device: nothing is uploaded or saved on a server.

Example

Example: tuning a violin to A = 442 Hz for an orchestra

The orchestra tunes to 442 Hz, so choose 442 Hz (many orchestras) as the reference. Every string moves up with it, by about 8 cents.

  1. Tune the A first: bowed at 440 Hz with the 442 reference, the needle reads −8 cents, “Too low — tighten”.
  2. A D at 293 Hz reads −12 cents against 442 (−4 against 440): bring it up with the fine tuner until “In tune” lights, within ±3 cents.
  3. Tap a string on screen to hear its note for two seconds and tune to it by ear.
String At 440 Hz At 442 Hz At 415 Hz (baroque)
G3 196.00 Hz196.89 Hz184.86 Hz
D4 293.66 Hz295.00 Hz276.98 Hz
A4 440.00 Hz442.00 Hz415.00 Hz
E5 659.26 Hz662.25 Hz621.80 Hz

All four strings end up about 8 cents above 440 pitch, with the orchestra. For practice at home, set the reference back to 440 Hz.

How it works

  1. Choose the reference A: 440 Hz, or 442 Hz if your orchestra tunes higher. Press Start tuner and allow the microphone.
  2. Bow or pluck one string: the needle shows how far it is from the note.
  3. Use the fine tuners for small changes and the pegs for large ones, until “In tune” lights up.

Frequently asked questions

What are the violin string notes?
G3 D4 A4 E5, a fifth apart. The A is tuned first, then the others.
Should I tune to 440 or 442 Hz?
To whatever your teacher or ensemble uses: 440 Hz is the international standard, many European orchestras tune to 442 or 443, and baroque ensembles often to 415.
Why does the tuner not hear anything?
The browser needs permission to use the microphone — press Start and allow it, or check the icon next to the address bar. Play one string at a time, close to the phone or laptop, in a quiet room.
Does it work for viola or cello?
Choose the chromatic page: it reads any note — viola C3 G3 D4 A4, cello C2 G2 D3 A3.
What frequencies are the violin strings?
At A4 = 440 Hz: G3 196 Hz, D4 293.66 Hz, A4 440 Hz and E5 659.26 Hz. At 442 Hz each is about 8 cents higher: 196.89, 295, 442 and 662.25 Hz.
Why does my A show −8 cents?
The reference is set to 442 Hz and your A is at 440 Hz, which is about 8 cents lower. If your teacher tunes to 440, choose 440 Hz and the same A reads 0.
Is my playing recorded?
No. The sound is analysed in your browser as it comes in and is never recorded or uploaded.

Made for a specific use

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