Free guitar & ukulele tuning resources for teachers
Everything for tuning lessons in one place: a tuner that runs in any browser, sheets to print, a projector mode for the classroom and a widget for your own site. No sign-up, no ads, and no audio ever leaves the device.
The classroom pack has the how-to sheet, the cheat sheet, the ukulele chart, the worksheet with answers and the QR poster in one PDF.
Ready in a minute
Tune in the browser
Guitar with 89 tunings, ukulele with standard, low G, D and baritone.
Embed on your site
Paste one line of HTML into your lesson page, blog or school website.
A4 and US Letter friendly. The sheets are in English.
How to tune your guitar
One page for beginners: the six strings with notes and Hz, five steps, and a QR code to the tuner.
Tuning check worksheet
Eight questions on string names, frequencies, cents, Drop D and the ukulele. The PDF includes an answer key.
Alternate tunings cheat sheet
Twelve common tunings on one page, with the semitones to retune each string from standard.
Ukulele tuning charts
Standard GCEA, low G, D tuning and baritone: string notes, Hz and which string is closest to your face.
All 4 (PDF) Standard GCEA Low G D Tuning (ADF#B) Baritone DGBE
QR code poster
Hang it in the classroom or on the music stand: students scan it and tune on their own phone.
Charts for single guitar tunings
- Standard E PNG
- Drop D PNG
- Half-Step Down / Eb Standard PNG
- D Standard / Whole-Step Down PNG
- DADGAD Celtic PNG
- Open G PNG
- Open D PNG
- Drop C PNG
In the classroom
Projector mode
A full-screen tuner for the board: a giant note, a wide meter and “too low · tighten” in letters the back row can read. Every string gets a tick once it holds in tune; “Next instrument” resets for the next student.
Open projector modeKeys: Space starts and stops the mic, F fullscreen, R next instrument.
Tips for tuning a class
- Tune before the lesson or while the class warms up: one instrument at a time, close to the laptop microphone.
- Noisy room? The tuner ignores quiet background noise, but other instruments playing at the same time will confuse it. Ask the class to mute their strings.
- Use a laptop or the teacher’s phone at the front for the projector, and let older students scan the QR poster to tune on their own phones.
- New nylon strings stretch for days. Expect to retune new ukuleles every lesson for the first week.
On your website
Give students the tuner on your own lesson page. Copy a snippet, or pick any tuning and size in the widget builder.
Links for students
Short enough to write on the board, or print the QR poster above.
QR poster (PDF)Privacy for schools
- No accounts and no personal data: students never enter a name or email.
- Audio is analysed in the browser and never recorded or uploaded.
- No cookies and no advertising trackers. Visits are counted with cookieless Cloudflare Web Analytics.
- The embeddable widget loads no analytics at all.
Questions from teachers
Do students need an account or an app?
Does it work on Chromebooks and iPads?
Can I use it with a projector?
Is any audio recorded or uploaded?
May I print and share the materials?
Is it really free?
Teaching with GuitarTunings?
Tell me what is missing: a worksheet, a tuning, a language. I read every email and usually reply within a day. moritz@guitartunings.app