Bub, big, saying hi on the welcome card: Best guitar teacher in the universe. Also very fluffy.

Meet your teacher

This is Bub.

A fluffy, wild-haired rock legend with a red bandana and a red Flying V called Vicky. He has played stadiums on seven planets, and he would still rather watch you nail your first clean bend.

He teaches on the neck. Every lesson is a few flash cards: one idea, three points, something to do now, and a quick check. Then a short test, and the lesson comes back days later, just before you forget it.
He points. Bub flies over to the neck and points at the notes with Vicky, while the card stays put.
He knows you. Your streak, your last lesson, the intervals that keep tripping you up. He brings them up, kindly.
He cheers. Hundreds of lines and tips while you play, and he never mocks. Mistakes are information.

Sound familiar?

Same licks. Same tempo. For years.

Most players practise hard and stay stuck, because nothing tells them what is actually going wrong.

You can’t hear it

A note 20 milliseconds early sounds fine to you. Played a thousand times, it is the reason fast runs fall apart.

You speed up sloppy

You nudge the metronome up before the last tempo was clean, and you practise the mistakes in.

You have no plan

Twenty minutes of noodling feels like practice. Without a number to beat, you cannot tell if you got better.

Speed is a number. GuitarBub measures it.

How it works

Connect. Play. Watch it climb.

Plug in

Connect a guitar through any audio interface, or just use your laptop’s mic. One button, in the browser. Nothing to install.

Play to the click

Every note is timed: early, late, or in the pocket, in milliseconds. The rush and drag bars show it as you play.

Watch the number

Routines lift the tempo as you play clean. Progress graphs your best tempo day by day, so you can see the climb.

The real board

See it for real.

Screenshots of GuitarBub as it is today: a metronome, a fretboard, and a teacher, in one tab.

A lesson: Bub above the fretboard points his red Flying V at the low E string while the lesson card below explains power chords, with a quick check — **Lessons, taught on the neck**Bub points at the notes while the card explains: the idea on the left, what to do now and a quick check on the right.

The metronome running: a huge 4 counts the beat, Bub cheers with a tip, the beat view shows the rhythm, and the routine's loops sit below — **A metronome that listens**Every note you play is timed: rush, drag or in the pocket. Routines raise the tempo for you, and Bub cheers you on.

Jam with Bub playing a blues shuffle in A: the neck lights the A blues scale with the A7 chord notes named, a chord chart counts the bars — **Jam with Bub**Drums, bass and chords in any key, six grooves. The neck lights every safe note, the chord’s own notes bright. You solo.

Ask Bub answering Why does my bend sound sour, with a Try it and related questions — **Ask Bub**122 answers to the questions players actually ask, in Bub’s words, with something to try right now.

The Daily Bub at nine seconds left: the screen glows red and Bub has grown horns and red laser eyes — **The Daily Bub**Five questions a day from your own lessons and weak spots, twenty seconds each. At ten seconds, Bub gets a bit devilish.

A fretboard that knows theory

Every scale, chord and arpeggio across the neck, in any tuning, every note spelled correctly. Hold notes and it names the chord. Play a note and it lights up.

36 rhythms, 13 meters

Eighths to quintuplets, swing, drop-out bars, named tempos from Largo to Thrash, drum kits and studio-rendered woodblock, claves and bell.

Routines that push you

Chain loops with their own tempo, rhythm and length. A speed curve lifts the tempo through each one, with a rest between loops if you want it.

A timing bar that comes alive

Every note lands as a glowing comet. Dead on the click it throws sparks, notes in a row in the pocket count up a streak, and way off, the bar shakes.

See what you are playing

From the neck to the number.

The neck, lit

A minor pentatonic, box 1. Roots in red. Every lesson and phrase draws on the neck like this.

The climb

Your best clean tempo, day by day: the graph in Progress.

An example of the graph, not a promise of a result. Yours is drawn from your own practice.

Learn as you play

106 lessons, taught on the neck.

327 flash cards with quick checks, a short test after each lesson, and spaced review that brings lessons back before you forget them. Every right answer is worked out by the app from music theory, so a lesson can never teach a wrong note.

Theory

Notes on the neck, scales, keys, triads, CAGED, modes, voice leading, jazz ii–V–I and classical cadences.

Ear

Intervals, chord colours, notes in a key as numbers (Do Re Mi if you like), inversions, bass lines and Pitch Memory.

Rhythm

Sixteenths, triplets, swing, syncopation, odd meters, and playing ahead of or behind the beat, on the click.

Technique

Tempo ladders for alternate, economy and hybrid picking, legato, sweeps, and bends graded by pitch.

Riffs & Solos

Power chords, the gallop, the boogie, licks, bends, tapping and a whole solo, lit note by note on the neck.

Plus the Daily Bub, a Riff of the day from 20 riffs in 20 styles, and Review for your weak spots.

Gig talk

From the garage to seven planets.

Lessons are venues, not grades. Pass one and the crowd shouts Encore!; miss and it’s just a soundcheck. Every lesson you pass takes you further on tour, and unlocks something backstage: shades, a cowboy hat, a crown, a space helmet for Bub, and new paint for Vicky.

Garage
Club
Arena
Stadium
World tour
Seven planets

Progress, On tour: the road from Garage to Seven planets with Stadium lit, Bub's wardrobe of outfits and Vicky's looks, locked ones saying how to earn them

Who it is for

Built for players who want proof.

Stuck at a tempo

You can play songs, you have practised for years, and clean speed stopped going up. This is the measuring tape.

Learning the neck

Theory that lives on the fretboard, not on a page. Find any note, any scale, any chord, and know why it works.

Teaching and learning

Routines, phrases and lessons you can set up once and come back to every day, with the numbers to show what changed.

Questions

Good questions.

Is Bub an AI?

No. Every word Bub says is written and checked by hand, and every right answer in a lesson is worked out by the app from music theory. Nothing you type, say or play is sent anywhere to be answered.

Is it really free?

Yes. Everything on the board, every lesson, and syncing with an account, free. Open it and play.

Do I need an audio interface?

No. Your computer’s microphone works for the lessons and the click. For timing your playing to the millisecond, a guitar plugged into any audio interface is much better: it hears only the guitar.

Does it record me or upload anything?

No. The sound from your guitar is analysed in your browser as you play, and never leaves your computer. Nothing is recorded or uploaded.

Do I have to install anything?

No. It runs in Chrome, Safari, Edge and Firefox. You can add it to your home screen and it works offline once it has loaded.

Does it work on a phone?

Yes, the whole board works on a phone, lessons and jams included. For timing with a guitar, a laptop with an interface is the best setup.

Do I need an account?

No. Everything is saved on your device. An account is optional: it keeps your routines, lessons and practice log in sync between devices.

Play faster.Prove it in BPM.

This is Bub.

Same licks. Same tempo. For years.