A free tuner for guitar, violin, banjo, horns and more.
Snacks Tuner opens straight to the needle. Play a note and it shows what it hears, how many cents off you are, and whether to go up or down. No ads, no account, no subscription, and nothing tracked.
Instruments and tunings
Pick an instrument and a tuning, or search for one, and the ones you’ve used lately sit on top. Each tuning lists its open strings in the order they sit on the instrument.
- Guitar
- StandardE2 A2 D3 G3 B3 E4
- Drop DD2 A2 D3 G3 B3 E4
- Half step downD♯2 G♯2 C♯3 F♯3 A♯3 D♯4
- Whole step downD2 G2 C3 F3 A3 D4
- Drop CC2 G2 C3 F3 A3 D4
- C standardC2 F2 A♯2 D♯3 G3 C4
- Drop BB1 F♯2 B2 E3 G♯3 C♯4
- DADGADD2 A2 D3 G3 A3 D4
- Open GD2 G2 D3 G3 B3 D4
- Open DD2 A2 D3 F♯3 A3 D4
- Open EE2 B2 E3 G♯3 B3 E4
- Open CC2 G2 C3 G3 C4 E4
- Baritone (B standard)B1 E2 A2 D3 F♯3 B3
- 7-stringB1 E2 A2 D3 G3 B3 E4
- 8-stringF♯1 B1 E2 A2 D3 G3 B3 E4
- Josh Homme (QOTSA)G2 G2 D3 G3 D4 D4
- Keith Richards (Rolling Stones)G2 D3 G3 B3 D4
- Neil Young (double drop D)D2 A2 D3 G3 B3 D4
- Jimmy Page (The Rain Song)D2 G2 C3 G3 C4 D4
- Jimmy Page (Friends, Bron-Yr-Aur)C2 A2 C3 G3 C4 E4
- Nick Drake (Pink Moon)C2 G2 C3 F3 C4 E4
- Chris Cornell (Pretty Noose)C2 G2 C3 G3 G3 E4
- Soundgarden (My Wave)E2 E2 B2 B3 B3 B3
- Stephen Stills (Suite: Judy Blue Eyes)E2 E2 E3 E3 B3 E4
- John Rzeznik (Iris)B1 D2 D3 D3 D4 D4
- Lou Reed (ostrich tuning)D2 D2 D3 D3 D4 D4
- Thurston Moore (Teen Age Riot)G2 A2 B2 D3 E3 G3
- Robert Fripp (New Standard Tuning)C2 G2 D3 A3 E4 G4
- Bon Iver (Skinny Love)C2 G2 E3 G3 C4 C4
- Jack White (open A)E2 A2 E3 A3 C♯4 E4
- Michael Hedges (Aerial Boundaries)C2 C3 D3 G3 A3 D4
- Tony Iommi (C♯ standard)C♯2 F♯2 B2 E3 G♯3 C♯4
- Korn (7-string A)A1 D2 G2 C3 F3 A3 D4
- Meshuggah (8-string F)F1 A♯1 D♯2 G♯2 C♯3 F♯3 A♯3 D♯4
- Resonator guitar
- Open GG2 B2 D3 G3 B3 D4
- Open DD2 A2 D3 F♯3 A3 D4
- Bass
- 4-stringE1 A1 D2 G2
- Drop DD1 A1 D2 G2
- 5-stringB0 E1 A1 D2 G2
- 6-stringB0 E1 A1 D2 G2 C3
- Ukulele
- Standard (high G)G4 C4 E4 A4
- Low GG3 C4 E4 A4
- BaritoneD3 G3 B3 E4
- Cavaquinho
- StandardD4 G4 B4 D5
- Banjo
- Open GG4 D3 G3 B3 D4
- Double CG4 C3 G3 C4 D4
- SawmillG4 D3 G3 C4 D4
- Open DF♯4 D3 F♯3 A3 D4
- TenorC3 G3 D4 A4
- Irish tenorG2 D3 A3 E4
- Mandolin
- StandardG3 D4 A4 E5
- Mandola
- StandardC3 G3 D4 A4
- Octave mandolin
- StandardG2 D3 A3 E4
- Bouzouki
- IrishG2 D3 A3 D4
- Irish in fifthsG2 D3 A3 E4
- GreekC3 F3 A3 D4
- Balalaika
- PrimaE4 E4 A4
- Violin
- StandardG3 D4 A4 E5
- Cross AA3 E4 A4 E5
- High bassA3 D4 A4 E5
- Cross GG3 D4 G4 D5
- CalicoA3 E4 A4 C♯5
- Viola
- StandardC3 G3 D4 A4
- Cello
- StandardC2 G2 D3 A3
- Double bass
- StandardE1 A1 D2 G2
- SoloF♯1 B1 E2 A2
- 5-stringB0 E1 A1 D2 G2
- C extensionC1 A1 D2 G2
Winds and brass, too. Trumpet, clarinet and tenor sax in B♭, alto sax in E♭ and French horn in F show the written note, the one you read. Trombone and flute read at concert pitch.
And a chromatic mode, for anything else.
What’s in it
- The note it hears, how many cents off you are, and which way to go, big enough to read from a music stand
- A strobe strip that catches the smallest drift
- Tap a string to lock onto it, so a low string can’t jump an octave
- Reference tones, so you can hear the note you’re aiming for
- Search every instrument and tuning, with the ones you’ve used lately on top
- Sweetened tunings, including James Taylor’s published offsets and “sweet thirds”
- Reference pitch from 415 to 466 Hz, with sharps or flats
- Intonate: checks a fretted instrument’s setup at the 12th fret, and says which way to move the saddle and how far
- Flip the display for a phone on a music stand, and the screen stays awake while you tune
- A little buzz on your phone when a string lands
- Works offline
Intonate
Intonate checks a fretted instrument’s setup. Play the open string, or its harmonic at the 12th fret, then the same string fretted at the 12th. It tells you how far sharp or flat the 12th is, which way to move the saddle, and how far, in mm and the nearest 64th of an inch. On the banjo, mandolin, mandola, octave mandolin and bouzouki, the whole bridge floats, so it tells you which way to move the bridge instead. The violin, viola, cello and double bass have no frets, so there’s nothing to check.
Private by design
The microphone is only on while the tuner is running. The sound is analysed on your device and never recorded or sent anywhere. There are no accounts, ads, analytics or crash reports, and your settings are saved on your device, never sent to us. The privacy policy has the details.
Why it’s free
Snacks is a design studio. Snacks Labs is where our designers build real software and put it out in the open: small tools, experiments, and things we wish already existed.
Most free tuners are a sales funnel. Chromatic mode sits behind a subscription, the cents readout wants an account, and there’s an ad between strings. A tuner is a basic tool, so we built a good one and gave it away.
It’s for players, teachers, and anyone restringing at a bench. If it helps you, pass it on.
Questions
Is Snacks Tuner free?
Yes, all of it. No ads, no subscription, no account, and nothing held back for a paid version. Snacks, a design studio, built it and gave it away.
Do I need to install anything?
No. It works in your browser at tuner.snacks.design, on a phone or a computer, and you can add it to your home screen. It’s also a free app for Android, on Google Play.
Does it record me?
No. The microphone is only on while the tuner is running. The sound is analysed right there on your device, a fraction of a second at a time, and never recorded or sent anywhere.
Does it work offline?
Yes. Once the page has loaded, the tuner keeps working without a connection. The phone apps work offline too.
Which instruments can I tune?
Guitar, resonator guitar, bass, ukulele, cavaquinho, banjo, mandolin, mandola, octave mandolin, bouzouki and balalaika; violin, viola, cello and double bass; trumpet, clarinet, alto sax, tenor sax, French horn, trombone and flute; and a chromatic mode for any other note.
How do I use it?
Press Start tuning and allow the microphone, then play one string at a time. The big letter is the note it hears, the needle and the number show how many cents sharp or flat you are, and the string turns green when it’s in tune. Tap a string to lock onto it.
How do I check my guitar’s intonation?
Switch to Intonate. Play an open string, then the same string at the 12th fret. It tells you how far sharp or flat the 12th fret is, which way to move the saddle, and how far, in mm and the nearest 64th of an inch.
Made with ❤️ by Snacks