Write music,
not markup.

Free, fast notation software that stays out of your way. Open formats, extensible with plugins, runs on your machine.

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Fast and local.

Nubium runs on your machine, not in a browser tab. Instant startup, no loading spinners, no account required. Your files stay on your disk.

Open formats.

Import and export MusicXML. Your scores work with MuseScore, Dorico, Sibelius, and anything else that speaks MusicXML. No lock-in, ever.

Make it yours.

Extend Nubium with plugins. Transpose, analyze chords, export PDF, connect MIDI controllers — or build your own plugin.

Everything you need.

MIDI input

Step entry or real-time recording from any MIDI controller.

Multiple voices

Independent voices per staff with cross-staff notation.

Chord symbols & tab

Chord symbols and guitar tablature.

Playback

Hear your score with swing, shuffle, repeats, D.S., and codas.

Lyrics & dynamics

Full support for lyrics, dynamics, articulations, and expressions.

Transposition

Transpose instantly. Extract individual parts from a full score.

PDF & MusicXML export

Export to PDF for print or MusicXML for any other notation app.

Plugins

Extend Nubium with community plugins or build your own.

Cross-platform

Runs natively on macOS, Windows, and Linux.

Your feature here

Tell us what you need — no account required.

Ready to write?

Nubium is free. No account, no trial, no strings.

Download

Get Nubium for your platform.

GitHub

Source code, issues, and roadmap.

Community

Connect with other users.