Write your music scores online

Use the easiest tool to create sheet music collaboratively

519,556,145 Notes composed
486,810 Fans
104 Instruments

The easiest way to write music scores online

Collaborative music notation software

Collaborative experience

Write your sheet music in real time and with all your friends on the same document (even if you want to write the new Top Charts with 1000 collaborators).

Standard MusicXML and MIDI

Standard format

Our online music notation editor uses the standard MusicXML format giving you the opportunity to easily import your existing work and use it wherever you want.

All the instruments you need to compose an amazing music score

All the instruments you need

Create your own orchestra by using all available instruments of our online sheet music maker. Once your composition is done, listen to your work, and let the magic happen.

Compose by MIDI controller

Compose by MIDI controller

Plug your MIDI Controller into flat and get your music score written in real time. We give you the opportunity to write music even if you don't know how to compose it.

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Connected with your Drive

Use Google Drive to get quick access to all your sheet music from all your devices and share them easily.

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Increase your productivity

Using Google Hangouts you get the best of Flat and Google in one video-chat to maximize your productivity and pleasure.

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Teach music to your students - Flat for Education

Flat for Education

The greatest online music score editor is now available for your class with a dedicated version. Thousands of students and teachers are already using it, join them!

Use Flat with your Class