Tune a standard 4-string bass to E-A-D-G with microphone pitch detection, dedicated low-frequency targets, and alternate bass tunings.
A bass tuner is configured for the lower fundamental frequencies of bass guitar. Standard 4-string tuning is E1-A1-D2-G2, matching the four lowest strings of a guitar one octave lower.
The target setup on this page is E1 - A1 - D2 - G2.
Pitch analysis runs continuously in the browser and displays the nearest target, frequency, and cents difference.
The tuner shows whether the current note needs to move up, move down, or is within the in-tune range.
Select a visible target to hear a clean reference pitch when you want to compare the instrument by ear.
Microphone samples are analyzed locally and are not uploaded as an audio recording.
Tune in a quiet room and play only one clear note or open string at a time.
Start with E1 - A1 - D2 - G2. Available alternatives include Standard 4-string, Drop D, half step down, and dedicated 5-string bass tuning.
Allow microphone access, keep the instrument close enough for a clean signal, and avoid other sustained sounds.
Play one open string and let it sustain while the tuner selects or follows its target.
Move gradually toward the center, then repeat every target because changing one string can slightly affect the others.
Use the dedicated preset when the target notes and physical string order matter more than a general chromatic reading.
Tune standard EADG or move the lowest string to D for Drop D bass parts.
Check low strings before tracking because small pitch errors become obvious against drums, keys, and guitars.
Let one low note sustain and mute the other strings to help the browser isolate the fundamental.
Use the 5-string branch for BEADG or Chromatic mode for custom and extended-range tunings.
Both use the same pitch detector, but they organize targets differently.
| Bass Tuner preset | Chromatic mode | |
|---|---|---|
| Targets | E1 - A1 - D2 - G2 | All twelve semitones |
| Visual layout | Instrument-specific pegs and strings | Detected note and cents |
| Best for | Bass Tuner | Custom tunings and other pitched instruments |
| Tuning choice | Standard 4-string, Drop D, half step down, and dedicated 5-string bass tuning | No instrument tuning required |
A dedicated preset is easier when you want the correct string order. Chromatic mode is more flexible when you already know the target note.
Yes. It runs in a supported browser without requiring an account or installing a tuning app.
The default targets are E1 - A1 - D2 - G2.
Yes. Allow microphone permission, keep the device near the instrument, and play in a quiet place for a more stable reading.
One semitone contains 100 cents. A negative reading is flat, a positive reading is sharp, and a value close to zero is in tune.
Other strings, room noise, overtones, and a hard attack can compete with the fundamental. Mute unused strings and read the note after it settles.
No. Live microphone analysis stays in the browser and the tuner does not create or upload an audio recording.
Find BPM from a song, loop, or recording, review confidence, and compare half-time or double-time readings.
Analyze a song, loop, acapella, instrumental, or recording locally, then review confidence and compatible keys.
Detect chord changes, review a synchronized timeline, correct labels, and export a TXT or CSV chord chart.
Select notes or mark a guitar shape, hear the voicing, and compare likely chord names.
Search common major, minor, seventh, and major seventh shapes, hear them, and open detailed references.
Compare chord diagrams by root, quality, and difficulty, then open a detailed reference or print the chart.
Measure beats per minute from your taps with timing consistency feedback.
Use your microphone to tune guitar, bass, ukulele, cavaquinho, violin-family instruments, mandolin, balalaika, banjo, or any chromatic instrument.
Use a live microphone or recording to measure your lowest note, highest note, octave span, and a range-based voice type estimate.
Analyze complete audio files with EBU R128 loudness measurement in your browser.
Check six frequencies in each ear and compare both sides with an instant visual result.
Run a guided high-frequency check or mark your cutoff during a continuous 20 Hz to 20 kHz sweep.
Verify speaker channels and run controlled playback checks directly in your browser.
Verify headphone channels, stereo movement, bass playback, noise, and phase online.
Select an input device, watch the live level, record a short sample, and hear your microphone without uploading audio.
Verify left and right output, stereo, bass, phase, microphone level, recording, and playback in your browser.
