The term SDK stands for software development kit. It is a collection of tools that allow developers to build software for specific platforms. An SDK can consist of (but is not limited to) a compiler, debugger, libraries, documentation, and code samples.

very good whiteboard infinite canvas SDK

• UpdatedFeb 20, 2026
• TypeScript

An open source payments switch written in Rust to make payments fast, reliable and affordable

• UpdatedFeb 20, 2026
• Rust

微信开发 Java SDK ，支持包括微信支付，开放平台，小程序，企业微信，视频号，公众号等的后端开发

• UpdatedFeb 9, 2026
• Java

Integrate cutting-edge LLM technology quickly and easily into your apps

• UpdatedFeb 20, 2026
• C#

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

• UpdatedFeb 20, 2026
• Java

A framework for building Mobile cross-platform UI

• UpdatedDec 15, 2025
• C++

Open-source feature management platform

• UpdatedFeb 20, 2026
• TypeScript

🧩 The Browser Extension Framework

• UpdatedFeb 20, 2026
• TypeScript

Build AI-native spreadsheets. Univer is a full-stack framework for creating and editing spreadsheets on both web and server. With Univer Platform, Univer Spreadsheets is driven directly through natural language.

• UpdatedFeb 20, 2026
• TypeScript

Simple and Fast Multimedia Library

• UpdatedFeb 13, 2026
• C++

The Dart SDK, including the VM, JS and Wasm compilers, analysis, core libraries, and more.

• UpdatedFeb 20, 2026
• Dart

📦 一个 PHP 微信 SDK

• UpdatedFeb 13, 2026
• PHP

微信全平台 .NET SDK， Senparc.Weixin for C#，支持 .NET Framework 及 .NET Core、.NET 10.0。已支持微信公众号、小程序、小游戏、微信支付、企业微信/企业号、开放平台、JSSDK、微信周边等全平台。 WeChat SDK for C#.

• UpdatedJan 28, 2026
• C#

Official Sentry SDKs for JavaScript

• UpdatedFeb 20, 2026
• TypeScript

RealSense SDK

• UpdatedFeb 19, 2026
• C++

The C++ REST SDK is a Microsoft project for cloud-based client-server communication in native code using a modern asynchronous C++ API design. This project aims to help C++ developers connect to and interact with services.

• UpdatedJun 12, 2025
• C++

Bot Framework provides the most comprehensive experience for building conversation applications.

• UpdatedDec 29, 2025
• JavaScript

Run frontier LLMs and VLMs with day-0 model support across GPU, NPU, and CPU, with comprehensive runtime coverage for PC (Python/C++), mobile (Android & iOS), and Linux/IoT (Arm64 & x86 Docker). Supporting OpenAI GPT-OSS, IBM Granite-4, Qwen-3-VL, Gemma-3n, Ministral-3, and more.

• UpdatedFeb 20, 2026
• Kotlin

The all-batteries-included GitHub SDK for Browsers, Node.js, and Deno.

• UpdatedFeb 17, 2026
• TypeScript

SDK for building Kubernetes applications. Provides high level APIs, useful abstractions, and project scaffolding.

• UpdatedFeb 11, 2026
• Go