LangChain

LangChain is an open-source framework designed to simplify the development of applications powered by large language models (LLMs). It provides modular components and abstractions for tasks like prompt management, data retrieval, and agent orchestration, enabling developers to build complex LLM-driven systems efficiently. The framework supports integration with various LLM providers, data sources, and tools to create robust AI applications.

Also known as: Langchain, LangChain Framework, LC, LangChain AI, LangChain Library

🧊Why learn LangChain?

Developers should learn LangChain when building applications that require advanced LLM capabilities beyond simple API calls, such as chatbots, question-answering systems, or automated workflows. It is particularly useful for scenarios involving retrieval-augmented generation (RAG), where external data sources enhance LLM responses, or for creating multi-step agentic systems that interact with tools and databases. LangChain streamlines development by handling common complexities like context management and tool integration.

See how it ranks →

Compare LangChain

LangChain vs Llamaindex→LangChain vs Haystack→LangChain vs Autogen→

Learning Resources

LangChain Documentation

LangChain Crash Course for Beginners

LangChain Tutorial - Build a Custom ChatGPT

LangChain Fundamentals on DeepLearning.AI

Related Tools

Large Language Models Retrieval Augmented Generation Prompt Engineering Vector Databases Ai Agents

Alternatives to LangChain

Llamaindex Haystack Autogen

Other LLM Frameworks

.NET Core is a free, open-source, cross-platform framework for building modern applications, developed by Microsoft. It supports the development of web apps, microservices, APIs, and cloud-based solutions using languages like C#, F#, and Visual Basic. It is designed to be modular, high-performance, and runs on Windows, Linux, and macOS.

.NET Core is a free, open-source, cross-platform framework for building modern applications, including web, cloud, mobile, desktop, IoT, and AI solutions. It is developed by Microsoft and supports multiple programming languages like C#, F#, and Visual Basic, with a modular architecture that enables high performance and scalability. It includes a runtime, libraries, and tools for developing and deploying applications on Windows, Linux, and macOS.

.NET Framework is a proprietary software framework developed by Microsoft that runs primarily on Windows. It provides a large class library called Framework Class Library (FCL) and language interoperability across several programming languages, enabling developers to build a wide range of applications, including desktop, web, and mobile. It includes features like memory management, security, and exception handling, and supports languages such as C#, VB.NET, and F#.

.NET Framework is a proprietary software framework developed by Microsoft that runs primarily on Windows. It provides a large class library called Framework Class Library (FCL) and language interoperability across several programming languages, enabling developers to build a wide range of applications, including desktop, web, and mobile. It includes features such as memory management, security, and exception handling, and supports languages like C#, VB.NET, and F#.

.NET Multi-platform App UI (.NET MAUI) is a cross-platform framework for building native mobile and desktop applications with C# and XAML from a single shared codebase. It allows developers to create apps that run on Android, iOS, macOS, and Windows using .NET. It is the evolution of Xamarin.Forms, integrated directly into the .NET platform.

.NET MAUI (Multi-platform App UI) is a cross-platform framework for building native mobile and desktop applications using C# and XAML. It allows developers to create a single codebase that can target Android, iOS, macOS, and Windows, leveraging the .NET ecosystem and providing a unified development experience. It is the evolution of Xamarin.Forms, integrated directly into the .NET platform.