Free Online Violin Tuner
Tune your violin online with your microphone through real-time pitch detection. Works with all four strings, G, D, A and E, and shows whether your note is flat, sharp or in tune.
Play violin with music you love. Play violin with music you love.
Practice with piano accompaniment
How to Use This Violin Tuner
- 1
Allow microphone access
Click Start and allow your browser to access your microphone.
- 2
Play one string at a time
Play the open G, D, A or E string so the tuner can detect its pitch.
- 3
Watch the pitch indicator
The tuner shows in real time whether your note is flat, sharp or in tune, so you can adjust the string accordingly.
- 4
Adjust the string slowly
Turn the tuning peg or fine tuner gradually until the indicator shows that the note is in tune.
Violin String Frequencies
Standard violin tuning uses the notes G, D, A and E. Most players tune to A4 = 440 Hz, while some orchestras and ensembles use A4 = 442 Hz as their reference pitch. The frequencies of the four open strings vary:
| String | Note | Frequency 440 Hz Standard | Frequency 442 Hz Brighter |
|---|---|---|---|
| 1st | E5 | 659.26 Hz | 662.25 Hz |
| 2nd | A4 | 440.00 Hz | 442.00 Hz |
| 3rd | D4 | 293.66 Hz | 295.00 Hz |
| 4th | G3 | 196.00 Hz | 196.89 Hz |
How to Tune a Violin Accurately
Accurate tuning of a violin is not only about reaching the right note. A stable sound, small adjustments and the right tuning technique all help you get a more reliable result.
- Play a clear, steady note: Bow or pluck the string cleanly and let it ring for a moment. A stable note makes it easier for the tuner to detect the pitch accurately.
- Make small adjustments: Turn the fine tuner or peg gradually. Large movements can easily take the string past the correct pitch.
- Use fine tuners when you are close: Fine tuners are ideal for small corrections. If the string is already near the right note, they give you more control than the tuning peg.
- Recheck the strings after tuning: Adjusting one string changes the overall tension on the violin slightly. Once all four strings are tuned, check G, D, A and E again and make any final corrections.
- Tune in a quiet environment: Background noise can make pitch detection less reliable. For the best result, tune somewhere quiet and keep the violin close to your device microphone.
- Match the reference pitch you need: Most players use A4 = 440 Hz, while some orchestras and ensembles tune to 442 Hz. If you are playing with others, use the same reference pitch as the rest of the group.
Common Violin Tuning Problems
Having trouble getting a stable reading? These are the most common causes:
- No note detected: Check microphone access, play one open string clearly and reduce background noise.
- Pitch keeps moving: Use a steady bow stroke or pluck the string cleanly and let the note settle for a moment.
- String won’t stay in tune: New strings may need frequent retuning while they stretch. Persistent slipping can also come from the tuning peg.
- Peg keeps slipping: Gently press the peg inward while turning it. If it still does not hold, the peg may need professional adjustment.
- Wrong note appears: The string may be far from its target pitch. Adjust it gradually until the tuner moves closer to G, D, A or E.
About the OKTAV Violin Tuner
The OKTAV Violin Tuner is a free online chromatic tuner that uses your device microphone for real-time pitch detection. It works directly in your browser with no download required and helps you tune the open violin strings G, D, A and E by showing whether a note is flat, sharp or in tune.
Violin Tuner FAQ
- Can I tune my violin online without downloading an app?
Yes. An online violin tuner works directly in your browser using your device microphone, so no app or installation is required.
- Is an online violin tuner accurate?
Yes, provided the microphone picks up a clear, steady note. For the best results, tune in a quiet environment and play one string at a time.
- Should I tune my violin with a bow or by plucking the strings?
Both work. Plucking is often easier for beginners, while bowing can provide a longer, more stable note for fine adjustments. Online tuners work better with a bow.
- How often should I tune my violin?
Check the tuning every time you play. Violins can drift out of tune due to temperature changes, string tension and regular use.
- Why does my violin go out of tune so quickly?
New strings naturally stretch, and tuning can also change with temperature, humidity or slipping pegs. Frequent retuning is normal, especially after changing strings.
- Can temperature or humidity affect violin tuning?
Yes. Changes in temperature and humidity can affect both the strings and the wooden instrument, causing the pitch to shift.