Download The Composer

The Substance Composer is a desktop application (Mac OSX), where you create and manage digital documents. While traditional text editors usually deal with visual information (emulating its representations on paper), the Substance Composer is developed around the idea that content is data. Its structured document composition allows documents to be stored and represented in multiple arbitrary ways. On top of that, with its collaborative features you can annotate, comment and revise your content.

Explore Publications

Explore a first set of publications made on the new Substance platform. With Substance.io we are building an open document repository, available to anyone.

Help Us

After a two-year experimental phase, we're turning Substance into a production system. So we sat down, worked out a roadmap and launched a campaign to back development costs.

With the help of your donation we could make it happen, which is exciting! If you enjoy using Substance and want to see more, please support us.