Tune your bass guitar by mic or by ear — accurate to the cent
A chromatic bass tuner that listens through your mic and locks onto low frequencies accurately. 4-string, 5-string and Drop D tunings with per-string reference tones built in.
How to get a solid bass tune
Low frequencies take a moment to lock. A clean pluck and a quiet room make the biggest difference.
Pick your tuning
Select 4-String for standard EADG, 5-String for BEADG, or Drop D. The target note buttons update immediately for each configuration.
Pluck one string firmly
Bass needs a clean, definite pluck. Let the string ring and mute the others. Avoid palm-muting or playing too softly — the detector needs the fundamental to come through clearly.
Give low strings a moment
The low E and B strings have long wave periods. The detector may take a beat to lock on. Hold the note steady and wait for the display to stabilise before adjusting.
Fix octave readings
If a low string reads an octave too high, pluck slightly softer and move closer to the mic. Low-B on 5-string is the most prone to this — mute all other strings and pluck cleanly.
Bass tunings, notes included
Standard 4-string EADG covers almost all playing. Five-string adds a low B for extended range.
| Tuning | Notes (low→high) | Used for |
|---|---|---|
| 4-String | E A D G | Standard bass — covers most music |
| 5-String | B E A D G | Extended low range, heavier styles |
| Drop D | D A D G | Rock, metal, grunge — quick power chord access |
The Tempo & Delay Cheat Sheet
Tuned up and ready to record? Keep this one-page reference by the desk — genre tempos and tempo-synced delay times, all on a page.
- Tempo ranges for 16 genres
- Delay times for every common BPM
- The dotted-eighth and triplet values pros actually use
- Reverb pre-delay and LFO sync tricks
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Once you are in tune
Tuning is step one. Here is what producers and bass players reach for next.
Questions, answered
Does it detect the low B on a 5-string bass?
Yes. The analysis buffer is set to 4096 samples on this page, which gives the autocorrelation enough resolution to lock onto B0 at 30.87 Hz. Pluck clearly with the other strings muted.
Why do my low strings keep jumping around?
Very low frequencies produce strong overtones that can fool the detector. Pluck the string cleanly, mute everything else, and move slightly closer to the microphone. Playing too hard can cause the second harmonic to dominate instead of the fundamental.
Do I need an audio interface?
No. Your laptop or phone mic will work in a reasonably quiet room. For the most reliable low-string detection, plugging your bass into an audio interface removes ambient noise from the signal path entirely.
Do I need to download anything?
No. The tuner runs entirely in your browser. Mic audio is processed locally and never uploaded.
Honest reviews, free tools and guides for music producers. Built by people who actually make music, for people who actually make music.