Violin Tuner Online
Use this free violin tuner online with microphone pitch detection for standard GDAE strings, Open G, Open D, Cajun, and more tunings.
Standard Violin Tuning: GDAE
The standard violin tuning is G3, D4, A4, and E5 from the lowest string to the highest. Use the microphone tuner above to tune each violin string to its target note.
- G string
- G3
- D string
- D4
- A string
- A4
- E string
- E5
Violin Tunings
Choose from 6 popular violin tunings. Each tuning page includes a pre-configured tuner and information about when to use it.
How to Tune a Violin
Tuning your violin is essential for producing beautiful music. This violin tuner online is set up for standard G-D-A-E tuning (from the lowest string to the highest). The strings are tuned in perfect fifths, which is the interval that defines the violin family's characteristic sound.
Begin by tuning the A string to A4 (440 Hz), which is the standard concert pitch. Then tune the D string a perfect fifth below A, followed by the G string a perfect fifth below D, and finally the E string a perfect fifth above A. Fine tuners on the tailpiece allow for small adjustments, while the pegs are used for larger changes.
How to Use This Violin Tuner
- Select your tuning from the dropdown menu (Standard GDAE is selected by default).
- Click the microphone button and allow microphone access when prompted.
- Bow or pluck a single string on your violin. The tuner will automatically detect which string you're playing.
- You can also tap a specific string button to tune that string. The tuner will show how sharp or flat you are from the target note.
- Turn the fine tuner or peg until the indicator is centered and the status shows "In Tune."
- Repeat for each string until your violin is fully in tune.
Understanding Violin Tuning
Standard (GDAE) — The universal tuning for violin, with strings tuned in perfect fifths: G3, D4, A4, E5. This tuning is used in classical, jazz, folk, and virtually all other violin genres.
Open G (GDGB) — An open tuning that produces a G major chord when all strings are bowed open. Popular in folk and fiddle music, it simplifies playing in the key of G major.
Cross Tuning (AEAE) — Also known as high-bass tuning, this creates octave pairs perfect for old-time Appalachian fiddle music. The symmetrical intervals make certain drone patterns very natural and are a hallmark of the tradition.
Violin Tuner Online FAQ
Can I use this violin tuner online for free?
Yes. ViolinTuner.io is a free violin tuner online that runs in your browser. Click the microphone button, allow mic access, and tune standard GDAE strings without downloading an app.
What notes are standard violin tuning?
Standard violin tuning is G3-D4-A4-E5, usually written as GDAE from the lowest string to the highest. The strings are tuned in perfect fifths.
Can this tuner hear violin strings through my microphone?
Yes. The tuner listens through your device microphone, detects the pitch of the string you bow or pluck, and shows whether it is sharp, flat, or in tune.
How do I tune a violin?
Select Standard GDAE, start the microphone tuner, then bow or pluck one string at a time. Adjust the fine tuner or peg until the indicator is centered for G3, D4, A4, and E5.
Is violin tuning the same as viola tuning?
No. Violin tuning is G3-D4-A4-E5, while viola tuning is C3-G3-D4-A4. The violin has a high E string instead of the viola's low C string.