Free Online Tuner
Note
—
Allow the microphone, then play a note
Your microphone audio stays in your browser.
Tune up, then play along to a band that builds itself around you. Veena's free online tuner reads the note you play into your microphone, and CoProducer, the personal music producer inside Veena's AI DAW, builds a backing track on that note with drums, bass and chords as real tracks you can edit, mix and export.
Press Start tuner, allow the microphone, and play one note. The tuner shows the note, its octave and how far you are from it, in cents. It runs in your browser, and your audio is never uploaded.
How to use the online tuner
- Start the tuner. Press Start tuner and allow the microphone when your browser asks.
- Play one note. Pluck one string, bow one note or sing one pitch. Mute the other strings for a steady reading.
- Read the needle. The big letter is the nearest note. Left of centre is flat, right of centre is sharp, and the line under the note says how many cents.
- Tune to the centre. Turn the peg until the needle sits on the centre line and the tuner reads In tune, within five cents of the note.
- Build a backing track. Hold a note and select Build a backing track in that note with CoProducer. Veena opens a new project and CoProducer builds a track rooted on your note.
Standard tunings
| Instrument | Strings, lowest first |
|---|---|
| Guitar | E A D G B E |
| Bass guitar | E A D G |
| Ukulele | G C E A |
| Violin | G D A E |
| Cello and viola | C G D A |
| Mandolin | G D A E |
The online tuner is chromatic: it names whichever of the twelve notes you play, so it works for drop tunings like D A D G B E and open tunings like D G D G B D as well as standard.
Cents, hertz and the reference pitch
A semitone is divided into 100 cents. Most ears hear a difference of about five cents between two notes played together, so the tuner calls anything within five cents in tune. The number in hertz is the frequency the tuner measured, and the reference pitch sets where every note sits: A4 = 440 Hz is the standard, and the − and + buttons move it from 430 to 450 Hz to match an orchestra or a recording.
The tuner reads pitch the way a studio tuner does. It compares the sound from your microphone with delayed copies of itself to find the length of one cycle, which is the pitch you hear, and it ignores the overtones that make a string sound rich. It covers 40 Hz to 1,500 Hz, from the low E of a bass to the top of a violin.
From in tune to playing along
Tuning is the start of a session, so Veena makes it the start of a song. Once you hold a note, the tuner offers Build a backing track in your note with CoProducer. Select it and Veena opens a new project, and CoProducer builds a drum groove, a bassline and chords rooted on your note, each on its own track, at your reference pitch.
Play along, then shape it the way you would with a producer: "slow it down to 80 BPM", "make it a minor blues", "add a chorus that lifts". Record your own part in Veena's online recording studio on top, and every part stays editable on a real timeline with a mixer and effects, ready to export as WAV, MP3 or stems.
More free tools for players
- Key and BPM finder: read the key and tempo of a song from its audio file, then build a track on them.
- Chord finder: see the chords of a recording bar by bar.
- Chord progression generator: write a progression in any key and download the MIDI.
Tune, play and produce in Veena
A tuner gets your instrument right; Veena gets your song started. Tune in your browser, hold a note, and CoProducer builds the backing track you play over, free in your browser and on your phone.
Related reading: Free online metronome · Tap tempo · Chord finder · Online recording studio
Frequently asked questions
How do I use Veena's online tuner?
Press Start tuner and allow the microphone when your browser asks. Play one string or sing one note at a time. Veena's online tuner shows the note name, its octave, the frequency in hertz and how many cents sharp or flat you are. Tune until the needle sits on the centre line and the tuner reads In tune.
Is Veena's online tuner free?
Yes. Veena is an AI DAW with a personal music producer built in. Describe the song you want and CoProducer builds it with you — beats, chords, melody, arrangement and mix — as real tracks you can edit, mix and export. Free, in your browser. The tuner on this page needs no account, and your microphone audio stays in your browser.
Which instruments can I tune with it?
Veena's online tuner is chromatic, so it reads any note from 40 Hz to 1,500 Hz: guitar, bass guitar down to its low E, ukulele, violin, viola, cello, mandolin, banjo and your singing voice. Standard guitar tuning from the low string up is E, A, D, G, B and E.
What is A4 = 440 Hz, and can I change it?
A4 = 440 Hz is the standard reference pitch: the A above middle C vibrates 440 times a second, and every other note is set from it. Veena's tuner lets you move the reference from 430 to 450 Hz with the minus and plus buttons, for orchestras at 442 Hz or recordings tuned away from 440.
What happens after I tune?
Hold a note steadily and Veena's tuner offers Build a backing track with CoProducer. Select it and Veena opens a new project and CoProducer builds drums, bass and chords on that note as tracks you can edit, so you can play along the moment you are in tune.
How do I get a steady reading from an online tuner?
Play one string at a time and mute the others. Veena's tuner reads the strongest steady pitch it hears and smooths it over a short window, so a single clean note gives a steady needle. Hold the instrument close to the microphone, and the reading settles within a second.
Meet your personal music producer
Free, in your browser. Describe the song you want and CoProducer builds it with you.
Open Veena