A band under your fingers.

Pick chords on your laptop keyboard — guitar, bass and drums follow you live.

No install. No MIDI keyboard. No guitar skills.

Play now — it's free

Sing your song

You know the words. riffbox plays the chords.

Your key, one press. Keys are scale degrees, not chord names. Move the song up or down to fit your voice, and your fingers play it the same way.
Change chords in time. Press the next chord and the band switches on the beat, without breaking the rhythm.
Strum or pick. Campfire strum, fingerpicking, triplet arpeggios.

Start a song

Build a heavy demo

Hear your riff with a band in seconds — no DAW, no plugin chain.

Metal and metalcore grooves: breakdown, blast beat, double kick, gallop, doom.
Bass locked to the kick.
High-gain guitar with a drive knob: palm-muted chugs, tremolo, 3-3-2 syncopation.
Fills and groove changes land on the bar line.

Get heavy

How it works

Left hand picks the chord. Three rows of keys: the chords of your key, dominant sevenths, and the flipped major or minor.
Right hand shapes it. Hold a modifier for 7, sus4, add9, power chord and more.
The band does the rest. Strumming, bass and drums follow your tempo and your changes.

Why it sounds real

The guitar is a model of vibrating strings, not a loop of samples. When you change chords, shared notes keep ringing and only the strings that move are damped, the way a real player's hand works.

FAQ

Is it free?: Yes.
Do I need a guitar or music theory?: No. The screen shows every chord before you play it.
Does it work on my phone?: Not yet — it needs a physical keyboard. Use a desktop browser.
What language is the app in?: English or Russian — it follows your browser, and you can switch at the bottom of the screen.
Can I save my song?: Coming soon.

Chords in. Band out.

Play now — it's free