Our mission is to improve the UX of the internet

We create products to help frontend developers build, test, and get sign-off on user interfaces. Thousands of companies use our tools to ship UIs to billions of people.

We maintain Storybook, the most popular open source tool for developing user interfaces. It’s used by thousands of companies including Airbnb, Microsoft, and LEGO to create UIs for billions of people. Find us at conferences, giving workshops, and writing tutorials about Component-Driven Development with Storybook.


To fuel our open source work we build Chromatic, a cloud service that scans every possible UI state across browsers to catch visual and functional bugs. Assign reviewers and resolve discussions to streamline team sign-off. This enables customers like BBC, Mozilla, Adobe, and Square to iterate faster with less manual work.


Charles River VenturesMango CapitalDesigner FundFathom Capital