Chord & Scale Finder

Find chords and scales from selected notes. Explore chord possibilities and compatible scales. No ads, no sign-up.

1. Select the notes you want to analyze using the note buttons.
2. Choose sharp or flat notation to display notes in your preferred format.
3. Explore the Exact chord matches to identify chords formed by your selected notes.
4. Check Additional chord possibilities to discover chords that include your selected notes plus extra tones.
5. Review the matching scales to find scales containing all the selected notes.
6. Use Clear notes to start a new search or Load C major to explore a familiar example.

Selected notes3 / 12
Select notes to identify chords and scales
Selected: C · E · G
Chord matches
Additional chord possibilities
Scale matches

Nothing is saved or uploaded: everything stays in your browser. Select two or more notes to find matching chord structures and compatible scales. Exact chord matches contain precisely the selected notes. Additional chord possibilities include all selected notes plus other chord tones, ordered by the number of additional notes. Scale matches include every selected note, but may contain additional notes. Results are theoretical possibilities, not automatic key detection. Enharmonic spellings can be changed using the notation selector.

Your files and settings never leave your browser. This site only counts visits and clicks on the portfolio link anonymously (page, referring site, device type), with no cookies and without storing IP addresses or anything that identifies you.

Need a variation of this tool, or one that doesn't exist yet? Tell me what you need. I review every request, and if it's a good fit, I'll build it for you, free of charge.

How can you identify a chord or scale from a group of notes?

To identify a chord or scale, select the notes you want to analyze. The Chord & Scale Finder compares your selection with common chord structures and scale patterns to find possible matches. It identifies exact chord matches, suggests additional chord possibilities that include all your selected notes, and finds scales containing those notes. This makes it useful for understanding unfamiliar harmonies, exploring chord extensions and discovering musical ideas. The tool works directly in your browser, with no registration, audio upload or microphone access required.

What is the difference between a chord and a scale?

A chord is a group of notes played together to create harmony, while a scale is an ordered collection of notes used to build melodies and harmonies. For example, C major consists of the notes C, E and G, while the C major scale contains C, D, E, F, G, A and B. Understanding the relationship between chords and scales helps musicians write progressions, create melodies and explore harmonic possibilities.

Made by Luca Martone, sound designer and live sound engineer based in Turin.
For more information, click on the logo below.