An Internal Developer Platform (IDP) is a centralized environment that provides developers with self-service capabilities, standardized development environments, and automation tools to accelerate the software development lifecycle. IDPs are built and maintained by platform engineering teams who understand the needs of developers and integrate tools into the IDP and software development workflows. The first IDPs were developed internally by trail-blazing technology companies like Google, Amazon, and Spotify to streamline the software release process and enhance developer productivity and efficiency during periods of rapid growth. Modern enterprises need IDPs to overcome complexity, increase developer efficiency, and accelerate software delivery. Core components of an IDP include cloud infrastructure orchestration, development tools, code repositories and version control, collaboration tools, deployment and delivery tools, application configuration management, environment management, observability and data analytics tools, RBAM, and APIs and integrations. Implementing an IDP improves collaboration and knowledge sharing, increases developer productivity and efficiency, and accelerates innovation and faster time-to-market for software products.