Violin tool
Free online violin tuner for quick G D A E tuning checks
Use your microphone to tune violin strings online in real time. Check each open string, compare against built-in violin reference tones, and make fast corrections without downloading an app.
Click to start recording
Standard setup
Need the setup itself? Open the standard violin tuning guide
Standard violin tuning uses G D A E. This hub is for quick tuning. If you specifically want the standard setup, note order, and peg-versus-fine-tuner guidance, open the dedicated standard violin tuning page.
How to use
How to tune your violin online
Use the tuner above with a microphone, then adjust one string at a time without chasing every wobble in the note.
- Click Start Tuning and allow microphone access in your browser.
- Play the open A string first and let the note ring clearly.
- If the pointer sits left, the pitch is low. If it sits right, the pitch is high. Let the note settle before you react.
- Use fine tuners for small corrections and the note buttons when you want a violin reference tone before making a bigger move.
- Recheck all four strings once after the first pass because tension shifts can move earlier strings and slightly lean the bridge.
Tuning notes
Standard violin tuning notes are G D A E
These are the open-string targets from lowest to highest. If you are unsure where to begin, start on A and work outward.
G3
G string
Lowest open string. Tune it after A and D so the instrument settles before your final check.
D4
D string
Middle-low open string. Use small adjustments because peg movement changes pitch quickly.
A4
A string
Common reference string. Many players tune A first, then match the rest of the violin to it.
E5
E string
Highest open string. Make tiny adjustments and stop if the string starts feeling too tight.
Tuning order
Tune A first, then D and G, then finish on E
A is the usual reference string and often the easiest place to anchor your ear. Leave the E string until the end, then make tiny adjustments and do one final pass across all four strings.
Reference tone
Use the note buttons when the meter is not enough
Each string button plays a violin reference tone. That gives you a second path when the room is noisy or you want to tune partly by ear instead of staring at the meter.
Quick violin tuning questions
Read these before you start forcing pegs in the wrong direction.
Why do violinists usually start on the A string?
A4 is the common reference pitch in lessons, ensembles, and tuner apps. Once A is stable, it is easier to work outward to D, G, and E without guessing where the whole instrument should sit.
Can I tune a violin by ear with this page?
Yes. Use the built-in note buttons for G, D, A, and E, match each open string by ear, then confirm the result on the meter. This is especially useful when the room is noisy or the string starts far from pitch.
Why do I need to recheck after tuning all four strings?
Changing one string affects overall tension on the bridge and neck. Earlier strings can drift slightly, and the bridge can creep forward, so a quick second pass catches small problems before they become bigger ones.