FretFalcon
FretFalcon

See the fretboard with clarity

FretFalcon is a free, open-source practice studio for musicians who play fretted instruments. Easily reference chords, scales, and more. Build a timed practice routine, play with a synthesized backing track, and more.

practice · reference · improve
6/7/8-string guitar · bass · uke · mandolin · charango
In the box
30+ scales Chords CAGED system Circle of fifths Triads Backing track Metronome Left-handed Schedule
01Fretboard & theory

Every diagram, one canvas

Visualize scales and chord tones; and overlay multiple layers on the same fretboard or view side-by-side. Pin any combination of references as floating panels so you can cross-check without fumbling through tabs and ads.

  • Scales30+ types — major, minor, pentatonic, blues, modes. Even double harmonic minor.
  • ShapesChord diagrams, triads, and the full five-shape CAGED system.
  • TheoryInteractive circle of fifths, chord progressions and chord explainers.
Fretboard
Multi-layer fretboard overlay
Multi-layer fretboard overlay
screenshot · scale + chord
02Audio tools

Practice out loud

A set of audio tools lives alongside the reference — each one a floating panel you can call up at any time. Configurable backing track, metronome, strum, and drone pitch are always a click away.

  • BackingDrum machine with customizable patterns, bass lines, chord progressions, and swing.
  • TimingVisual & audio metronome you can float over anything.
  • Ear trainingContinuous drone for tuning, plus a strum-pattern player with common strum presets.
Backing track
Backing track & drum sequencer
Backing track & drum sequencer
screenshot · pattern grid
·Aside · who it’s for

Built for people who practice

01

Routine-builders

Stop noodling. Build a structured practice session and let the timer guide you through it. Save and load previous sessions.

02

Theory learners

Browse scales, chords, triads, CAGED diagrams, and the circle of fifths, all rendered consistently. Pin any combination side-by-side for cross-referencing.

03

Left-handed players

First-class lefty support throughout. Diagrams and fretboard maps mirror natively. No need to flip or rotate diagrams in your head.

04

Under-represented musicians

See scales and chord diagrams for 6/7/8-string guitar, bass, uke, mandolin, mandola, charango, and banjo. Great for multi-instrumentalists.

03Structured practice

A practice routine that keeps you on track

Define a session as a list of named, timed intervals — “10 min: C-major pentatonic, positions 1–3.” FretFalcon keeps the clock, shows the right diagrams for each item, notifies you when time’s up, and advances on its own.

  • ScheduleDrag-and-drop reordering, drive diagram displays, customize properties.
  • ThinkA customizable pomodoro timer, built specifically for musicians.
  • FlowAuto-advance between intervals without touching a key until your session ends.
Schedule
Schedule editor & running timer
Schedule editor & running timer
screenshot · timed intervals
04Linked & modular

Make your experience completely custom

Connect panels so they share state — a backing track can drive the chord-progression display, or the circle of fifths can broadcast a key to the rest of your views. Build the signal flow that fits how you think.

  • ThemedFive unique themes: warm parchment, mossy nature journal, sweet sherbet, crisp sci-fi and nostalgic vaporwave.
  • TidyFree positioning or snap-to-grid any combination of panels that you'd like.
  • ExtensibleModular extension system to easily drop in your own panels.
Workspace
Linked floating panels
Linked floating panels
screenshot · canvas + links
·The reference library

Everything you can pin to the canvas.

show_chartScales30+ types
grid_onChord diagramsopen + barre
arrow_forwardProgressionsmulti-chord
change_historyTriadsacross the neck
grid_viewCAGEDguitar system
donut_largeCircle of fifthsinteractive
adjustCapo calculatorshape ↔ key
layersMulti-layeroverlay fretboard
alarmTimerpomodoro
queue_musicBacking trackdrums + bass
timerMetronomevisual + audio
graphic_eqDrone & strumear + rhythm
Open source

Built without a framework.
One file. Yours to fork.

No React, no runtime dependencies — just TypeScript, vanilla DOM and Webpack. The build is a single self-contained HTML file you can open locally, self-host, or preview straight from GitHub.

Built with TypeScript · Webpack · vanilla DOM
Read the source Open the live demo
# Run locally:
npm start
 
# build one deployable file
node build_html

Your bird’s eye view of the fretboard.

No installation, no account. FretFalcon runs in your browser the moment you open it. Save forever on your machine as a single HTML page.

Free · open source · desktop recommended · mobile supported