Join our open source community
Some of today’s fastest-growing concepts have roots in community. That’s why open source is core to what we do: We put ideas out there so they can become even better ones; ideas that benefit and can be built upon by you. These open source projects emerged from actual problems that needed solving and have evolved thanks to the diverse perspectives of global contributors.
When you open ideas up, the sky becomes the limit—these tools can be constantly updated and used in ways that work for you.


Projects we contribute to
A tool for testing the contract (message format) used by both producers and consumers. It’s primarily handy for coordinating messaging in distributed systems like microservices.
Bridges your DTOs to SqlBulkCopy via simple mapping. This makes it easy to stream from a data source and stream into a data store, while keeping your memory usage down.
A simple, reusable component that helps you map from one object to another throughout your application, eliminating tedious work and extra configurations.
Enables in-process messaging with no dependencies to simplify scenarios in which you want an in-memory request/response and notification implementation.
Find us on GitHub
Stories from the field
Open source is a passion of ours: Hear the stories of impact and dig into some of the technical thinking that drives our shared successes.
How the Fixie test framework leverages developer ergonomics
The Fixie test framework reinvents .NET testing from a minimalist perspective by prioritizing developer ergonomics. See how this works at each step.
Introducing Totem: Contract testing for distributed systems
Microservices are designed to scale—but with great scale comes greater complexity. In this on-demand webinar you’ll see how Totem can make microservices messaging more seamless.