A packaged set of tools, libraries, documentation, and code samples that helps developers build software for a specific platform or service.
A software development kit, or SDK, saves developers from writing low-level code themselves. It typically includes libraries that wrap a platform's API, sample apps, debugging tools, and guides. Platform owners publish SDKs to make it easier for others to build on their products.
For example, a payment provider offers SDKs for web, iOS, and Android so an app developer can add a secure checkout screen with a few lines of code instead of handling card data and network calls manually. Mobile operating systems, cloud providers, and AI companies all provide SDKs. When choosing one, developers look at language support, documentation quality, update frequency, licence terms, and how much data the SDK collects, since third-party SDKs can affect app privacy and size.
Application Programming Interface: a defined set of rules that lets one piece of software request data or services from another.
FrameworkA reusable foundation of code, tools, and conventions that developers build applications on top of.
Integrated Development EnvironmentA software application that combines a code editor, debugger, build tools, and other features to help developers write software.
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