Bass Tuner

Free online bass tuner to keep your strings in tune.

Tune your bass with our free online bass tuner

Options for standard and alternate bass tunings

This bass tuner works for other stringed instruments like guitar, ukulele, and more!

How to tune a bass guitar

Our free guitar tuner will help you make sure you’re always in tune.

Step 1) Activate the bass tuner
  • To start, click on the red microphone symbol. 
  • Your device will ask for microphone access – be sure to click “Allow.”
  • This enables our online bass guitar tuner to listen to the pitch of your bass.
Step 2) Check if your bass strings are in tune

To get the most accurate results from the bass tuner, reduce background noise.

  • Start by plucking any string on your bass guitar (we suggest starting with your lowest string – the E string).
  • Our free bass tuner will detect the note you're playing and display how close it is to the correct pitch.
  • You'll see a slider appear that shows your tuning status:
    • If the slider is green, you’re in tune.
    • If the slider is red, you’re out of tune.
Step 3) Understand the bass tuner display

If the slider is red, your string is either flat or sharp:

If the slider appears to the LEFT of center, your string is FLAT.
  • Slowly turn the tuning peg counterclockwise until it turns green.
If the slider appears to the RIGHT of center, your string is SHARP.
  • Turn the tuning peg clockwise until it turns green.

Once the string is in tune, move on to the next string and repeat the process.

Bass guitar tuning tips

  • The tuner defaults to standard bass tuning (E A D G), but alternate tunings (like Drop D or BEAD) may be available by clicking on the “standard” dropdown.
  • Tune slowly – quick movements can overshoot your target note or cause string damage.
  • Always tune up to pitch for more stable tuning.
  • Play each string cleanly and let it ring – avoid muting or playing too aggressively while tuning.

How often should you tune your bass guitar?

Bass guitars typically stay in tune longer than guitars, but regular tuning is still important. Here are some factors that affect tuning stability:

  • Frequency of playing
  • How well your bass is strung
  • Climate and room temperature (ideal is 66–77 °F or 19–25 °C)
  • Humidity (ideal range: 40–50%)
  • Whether your bass is kept in a case or exposed

As a rule of thumb, if you’re playing the bass continuously for 30 minutes to an hour, you’ll want to check your tuning at least once during that session. We recommend tuning your bass guitar every time you sit down to play.

If you perform live, you’ll want to tune your bass every two to three songs. Writing a reminder on your set list is a great way to keep this in mind.

No more guessing. No more apps. Just bookmark this page and use our online bass guitar tuner any time you need to tune up.

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