principles.design is an open-source collection of design principles and methods. It serves as a resource for individuals and teams in the field of design, providing a curated collection of examples and principles that can guide decision-making in product development.

The website features a wide range of design principles contributed by various organizations, individuals, and product teams. These principles are intended to help teams make appropriate decisions by offering a set of considerations that form the foundation of good product design.

principles.design also encourages community participation and contribution, allowing users to submit their own examples of design principles.