TuneUniversal
Online bass tuner
Tune a four-string bass with real-time pitch detection.
Digital tuner
Lock selected stringRecommended: choose a string and the tuner stays on that target.
Reference tone
Mi1 / 41.2 Hz
All-string check
Strum all open strings once to see which strings are out of tune.
FlatIn tuneSharp
Detected note
--
Frequency--
Cents--
TargetMi1
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Bass Standard Strings: Mi - La - Re - Sol
+/-5 cents = In tune
Move the instrument closer to the microphone.
Play one open string and let it ring.
Use Manual mode in noisy rooms.
How it works
- Enable the microphone.
- Play a clear open string.
- Tune toward the nearest target note.
Related guides
How to tune Bass onlineA quick guide to tuning Bass with a microphone. Reference notes: E - A - D - G.How to tune Bass onlineA quick guide to tuning Bass with a microphone. Reference notes: E - A - D - G.5-string low B tuning for BassLearn 5-string low B tuning for Bass. Reference notes: B - E - A - D - G.
FAQ
Which strings are supported?
Standard E A D G bass tuning.
Do I need an app?
No, it runs directly in the browser.