About the App
Random Chord Generator - Guitar
Hit Generate and let chaos hand you the next riff. RCG throws fresh chords your way, helping you break habits, explore new voicings, and find inspiration fast. It’s the quickest way to get unstuck and the easiest way to stumble into something cool.Built for guitar players. Designed for discovery.
Works in any browser. No install needed.
Currently trying to get my hands on a Mac. iOS version coming soon.
How it Works
How to Use
◈ Difficulty – pick the chord pool (Triads, 7ths, etc).
◈ Length – choose how many chords to generate.
◈ Generate – tap to create a new chord progression. The 1st row shows chords with the root on the A string; the 2nd row shows the same chords – root on the Low E. “Nth fr” = fret number of the root note.
◈ Left-Handed Mode – use the toggle in “Chord Charts” to flip them horizontally. The app remembers your preference & also exports left-handed PNGs.
◈ Lock – keep a chord fixed while you re-roll the others.
◈ Drag & Rearrange – drag the handles to the left of the chord names to reorder them and shape the perfect progression.
◈ Add to Favorites – tap the ⭐ under any chord chart to save it.
◈ Type Chords – enter your own chords manually (e.g. C Bm6 F#m7(b5b9) Bm7b5), then tap “Show My Chords.” Think of it like Google – but for chords.
◈ Save as PNG – export your progression; find it in your Downloads folder.
◈ Tip – for the best experience, use Landscape Mode – everything fits more comfortably.
Have random fun – I hope it inspires you to experiment and discover new sounds!
Chord Qualities & Types:
◈ Level 1 – maj, m, 5 (Free Version)
◈ Level 2 – sus2, sus4, add2, sus4(add9), 7, maj7, m7, m7b5, mMaj7
◈ Level 3 – 6, 6add9, add9, 7sus4, aug, dim, mb6, m6, m6add9, dim7, dimMaj7, maj7b5, m9b5
◈ Level 4 – maj9, maj7#11, maj13, 9, 9sus4, 11, 13, m9, m11, m13, madd9, 7sus9, 7susb9, 7sus13, m7(b13), maj7(#5), 7(b9), 7(#9), 13(b9), 7(b13), 7(#5), 7(b9b13), 7(#11), 7(b5), m11(b5), dim7(b13), m7(b5b9)
◈ Level 5 – All of the above combined.
I’d love to see the progressions you come up with – tag me / share 'em with me
@shumustudios
or wherever you hang out ^_^
Features
Random Chord Generator helps you discover new ideas and practice smarter – built for guitar players.
Hit “Generate” to throw unexpected chords your way and spark fresh inspiration – for creative sessions, jamming, or songwriting.
Features:
• Generate random progressions – lock or unlock chords, roll new ones instantly.
• Explore a vast built-in library of guitar chords – type any chord name and see how to play it.
• Build progressions with up to 9 chords – two voicings per chord (A-root and E-root).
• Left-handed mode – flip all chord charts horizontally with one switch (PNG exports included).
• 52 chord qualities across all 12 root notes – from simple triads to lush 13ths (guitar grips).
• Add to Favorites – save your favorite chords for quick access anytime.
• Drag and reorder chords to shape the perfect progression.
• Export and save progressions as high-resolution PNG chord charts – perfect for practice and songwriting.
• Difficulty levels – start with the basics and grow into advanced harmonies naturally.
• Test your chord knowledge – use the toggle in the top right to hide the charts and play the chords from memory.
• Fully responsive layout – works on any device, including TVs. But not on toasters. Yet.
• The free version covers essential chords – upgrade anytime to explore advanced harmonies and extra features like manual input and export options.
Whether you’re writing songs, jamming, or exploring new harmonic ideas, RCG keeps your creativity flowing. Find inspiration fast and break out of your usual chord patterns.
RCG is more than a tool – it’s your spark for the next chord that surprises you.
There's nothing here
...but you clicked anyway.
Curiosity - that's exactly what this app is about!
Inside the App
The Sound of Randomness
...or what happens when you stop chasing perfection and start chasing surprise.
Here are a few chord progressions made with RCG, that I then recorded:
RCG in Action
Quick tutorial - a peek into the moment where code, curiosity, and six strings collide
Why I Made This
Because I wanted to be surprised again.
In a world of increasing AI assistance - or steering - where we get so much help in so many domains including the arts (sometimes maybe even more than we need), I think this app is a breath of fresh air as it provides a different approach to music.
Still “man and machine”, yes, but the “machine’s” part is minimal: RCG gives you the first sparks, the nudge in a direction. But you build from there, you take the music into the stratosphere.
It doesn’t compose for you. It just gives you a small push into the unknown.
I was pleasantly surprised to discover that from randomness, something beautiful can arise - no theory, no plan, just sound taking shape.
One of my favorite progressions I made with the help of RCG: G#mMaj7 C#m Edim Gdim A#dim Cdim G#mMaj7 (16th fret). It reminded me that creativity doesn’t need a roadmap, only a direction. A simple, cool-sounding one was going from Fm to C#m.
I genuinely think it’ll add value to your life - reignite that beautiful curiosity that makes you play and remind you why you picked up the guitar in the first place.
– Shumu, 31 Oct ’25
About Me
Cheers, I’m Shumu - guitarist, teacher, and the human behind RCG. And huge Cyberpunk 2077 fan.
I built this app to reignite the same spark that first made me pick up the guitar - the thrill of discovery that truly never fades away.
Shout-Outs
Random Chord Generator – Guitar
◈ Thanks to Mark Knopfler for the inspiration behind this app, with the line: “Check out Guitar George, he knows... all the chords.” - Sultans of Swing
◈ Special thanks to Soso for sending me (way back in 2022) that image with “All the chords. Ever.” - it became an integral part of the app’s database. Plus telling me about SOLID Principles, BDD, DDD.
◈ Thanks to Georgia for the awesome Visual Studio Code presentation. On a laptop. In a car. Got me hooked 😀
◈ And last but not least, thanks to
Dan Toomey
at GoodWorkMB
for being awesome.
I hope it inspires you to experiment and discover new sounds!
Download
Closed Testing: To get early access (full version included),
Just DM me on Instagram or
email me your Gmail address.
I’ll personally add you to the tester list so you can grab RCG for free.
Works in any browser. No install needed.
Currently trying to get my hands on a Mac. iOS version coming soon.
Contact
Have thoughts or wild ideas for RCG?
I’d love to hear from you.
More stuff I created:
🎸 Guitar Lessons📸 Shumography
🌐 Web Design
📖 Life Map – (Audio)Book
🔴 YouTube – Riffs, solos & other noises