Tune guitar, bass, ukulele, violin, cello, mandolin, banjo, and other instruments live with your microphone, cents feedback, and adjustable reference pitch.
An online tuner listens through your device microphone, identifies the nearest musical pitch, and measures how far the sound is from the target note in cents. A negative cents value is flat, a positive value is sharp, and a centered reading is in tune.
Choose the correct strings, note order, and common tunings for guitar, bass, ukulele, violin-family instruments, mandolin, banjo, and more.
Detect any of the twelve semitones when tuning a wind instrument, voice, custom setup, or alternate tuning with known target notes.
Tune automatically from live audio or select a visible string target to hear the correct note and compare it by ear.
Make precise flat-or-sharp corrections and adjust A4 from 430 to 450 Hz when matching an ensemble, piano, or recording.
The tuner keeps instrument choice, target string, detected pitch, and adjustment direction visible in one workspace while dedicated pages open with the correct preset already selected.
See whether the note is flat, in tune, or sharp and how many cents it differs from the selected target.
Select the exact open string beside the current instrument head instead of memorizing note names or string order.
Use standard E A D G B E tuning or tune all six 12-string courses, including octave and unison pairs.
Tune in real time with no file upload, account, or separate analysis step.
Use one clear open string at a time and wait for the note attack to settle before making a small adjustment.
Choose from guitar, bass, ukulele, cavaquinho, violin, viola, cello, fiddle, mandolin, balalaika, banjo, or Chromatic mode.
Click the matching string in the visual guide, then pluck or bow it without pressing a fret or fingerboard position.
Tighten or loosen the string until the needle centers and the result reads In tune.
Instrument presets simplify common tunings while Chromatic mode remains available for any pitched instrument.
Tune standard 6-string acoustic or electric guitar, or work through every string in a 12-string course.
Use dedicated targets for 4- or 5-string bass, ukulele, and cavaquinho with the current string order shown beside the instrument.
Tune violin, viola, cello, fiddle, mandolin, balalaika, or 4- and 5-string banjo from a matching instrument view.
Automatically identify the nearest semitone for alternate tunings, wind instruments, keyboards, and other pitched sources.
Pitch detection is most stable when one clear fundamental note reaches the microphone.
Stop sympathetic vibrations so the tuner does not switch between multiple resonating notes.
Pluck normally, then read the meter after the first brief pitch fluctuation has passed.
If the display says Wrong note, confirm that the selected string and octave match the string you are playing.
Keep A4 at 440 Hz for common modern tuning, or match a different ensemble or recording reference from 430 to 450 Hz.
All three methods help reach the same target pitch, but they differ in how the target note is selected and displayed.
| Best for | How it works | |
|---|---|---|
| Instrument preset | Guitar, bass, ukulele, violin, cello, mandolin, banjo, and other included instruments | Shows the correct open strings, physical order, octave, and available tunings |
| Chromatic tuner | Any pitched instrument, custom tuning, voice, winds, and brass | Detects the nearest of all twelve semitones without requiring a fixed instrument layout |
| Reference tones | Tuning by ear or checking a microphone result | Plays the selected target pitch so you can compare the instrument directly |
Use an instrument preset when string order matters. Use Chromatic mode when you already know the target note.
Choose an instrument and tuning, start the microphone, then play one open string or sustained note at a time. Adjust the pitch until the cents marker reaches the center and the tuner reports that the note is in tune.
Yes. The tuner runs in a supported browser without an account, app download, or audio upload.
Yes. Allow microphone access in the mobile browser, keep the device close to the instrument, and play in a reasonably quiet space.
A semitone contains 100 cents. Negative cents mean the note is flat and needs to move up; positive cents mean it is sharp and needs to move down. A reading near zero is in tune.
A4 is commonly set to 440 Hz. Some orchestras, historical instruments, pianos, or recordings use a different reference, so the tuner lets you adjust A4 from 430 to 450 Hz.
An instrument tuner organizes the correct strings and tunings for a specific instrument. A chromatic tuner detects any of the twelve semitones and is better for custom targets or instruments without a preset.
No. In standard tuning they use the same open-string targets: E2, A2, D3, G3, B3, and E4. They are listed separately to match how players search for and identify their instrument.
Chromatic mode is not tied to one instrument. It detects the nearest of all twelve semitones, so it can tune any pitched instrument when you know the target note.
The lower four courses use octave pairs: E2 with E3, A2 with A3, D3 with D4, and G3 with G4. The B3 and E4 courses use unison pairs.
Play the selected open string without pressing a fret. Plucking nearer the bridge or neck changes tone more than pitch, so use a comfortable position that produces a clear sustained note.
No. Live microphone pitch detection runs locally in the browser and no audio file is uploaded.
Background noise, neighboring strings, overtones, and the first attack of a note can compete with the fundamental pitch. Mute unused strings, play one note, and wait briefly for the reading to settle.
You can select a string target to hear its reference tone and tune by ear. Live flat-or-sharp detection requires microphone permission.
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.
