Fretmap shows you where to put your fingers. Pick a root and a chord, and the shapes appear — six ways to play it, spread along the neck, each one checked to make sure a hand can actually reach it. No scrolling through a list of songs to find a diagram. No account. No connection.
Features
Worked out, not looked up
Fretmap does not store chord shapes. It knows how your instrument is tuned and what notes the chord is made of, and it finds the shapes from that. Switch to drop D, DADGAD or open G and the diagrams change with you — including for the tunings nobody publishes chord charts for.
Chords
24 types in all twelve keys: major, minor, 7, maj7, m7, m7b5, dim, dim7, aug, sus2, sus4, 6, m6, power chords, add9, 7sus4, 9, maj9, m9, 13, 7b9, 7#9, 7#5 and 7b5. Every dot can show its note or its degree — or nothing at all, for a plain diagram — and the root is marked in red so you can see the shape rather than only copy it. The notes are spelled the way they are written: the third of C minor is Eb, never D#.
Scales and modes
14 of them across the whole neck: major, natural minor, major and minor pentatonic, blues, harmonic and melodic minor, Dorian, Phrygian, Lydian, Mixolydian, Locrian, whole tone and diminished.
Hear it
Tap a shape and it strums, lowest string first, in the voice of the instrument you picked. Tap a single dot on the neck and you get that one note. Every pitch is generated on the device and checked to within a fiftieth of a semitone, so what you hear is what the diagram says. Turn it off in settings if you would rather work in silence.
The chords in the key
Under every seven-note scale sits the row of chords that belongs to it — C, Dm, Em, F, G, Am, Bdim for C major. Tap one and its shapes open. It is the fastest way to work out what a song can do next.
Four instruments, twelve tunings
Guitar in standard, drop D, Eb, DADGAD, open G and open D. Ukulele in standard, low G and baritone. Bass in four and five strings. Mandolin. Left-handed diagrams throughout.
Works without a connection
Everything is calculated on the device. Nothing is downloaded, nothing is sent, and there is no sign-up. The app remembers your instrument and the last thing you looked at, and that is all it keeps.
Screenshots
Fretmap is a reference, not a lesson. It never listens through the microphone and it asks for no permission to do so — it shows you where the notes are, plays them back when you want to check, and gets out of the way.
Frequently asked questions
- How much does Fretmap cost?
- Fretmap is free to download. It is supported by ads, and there is no subscription.
- Does Fretmap work offline? Do I need an account?
- Yes. Fretmap works on your phone without a connection, and there is no account or sign-in. The internet is only used to load ads.
- Does Fretmap collect my personal data?
- Fretmap never asks for your name, email address or phone number, and what you enter stays on your phone. Ads are served by Google AdMob, which collects limited device information such as the advertising ID. The privacy policy explains the details.
Get Fretmap
Android package com.fretmap.chordsscales ·
Fretmap privacy policy ·
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