Yes, we're open source!

Don't think a bank can do open source? We'd like to change your mind.

We launched the Capital One Open Source Program Office in 2015, one year after our first open source contributions. Since then, we've rebuilt ourselves from the ground up to create the tech infrastructure, internal governance, and company culture it takes to use the power of community to build the bank of the future.

Capital One is open source first

Open Source First

We develop and open source software designed to meet the demands of our highly regulated industry.

Capital One has contributed to 100+ open source projects

Contributions to 100+ Projects

Our technologists have made thousands of contributions to more than 100 projects, including 25 of our own.

Capital One is invested in the open source community

Invested in the Community

We sponsor the Cloud Native Computing Foundation, Python, FINOS, Apache and more to help keep open source sustainable.

Featured Open Source Projects

Critical Stack

The simple, secure container orchestration platform built for developers and the enterprise.

Cloud Custodian

An open source cloud governance rules engine that helps you expertly manage your cloud infrastructure.


Get a consolidated, nearly real-time overview of your CI/CD pipeline efficiency.

Featured Partnership

Walmart + Hygieia

Learn how the world’s largest retailer uses Hygieia to monitor and improve their CI/CD pipeline. 


Here, there and everywhere

Every year we sponsor and attend open source events like OSCON and All Things Open. Check out where we’ll be next.


Yes, we’re hiring!

Come help us change banking for good by using technology to serve our customers quicker and more easily than ever.

Featured Open Source Articles

Open Source

How to Maintain Compliance — At the Speed of Kubernetes

Container orchestration for the highly-regulated enterprise

Open Source

Sharing Capital One’s Open Source Journey During OSCON 2020

Open Source in a Highly Regulated Industry

Open Source

Notes From The Hygieia Open Source Journey

How coordinated enterprise collaborations can better support and develop open source products

Open Source

Adopting an Enterprise Open Source Mindset

Notes from Capital One’s Open Source Journey