Top 6 Udemy Courses to Learn LangChain and RAG in 2026

6 Best Udemy Courses to Learn LangChain and RAG

Hello guys, If you’re someone who’s excited about building cutting-edge Generative AI applications in 2026, there’s no better time to learn LangChain.

It has quickly become one of the most in-demand frameworks for building LLM-powered apps using OpenAI, Ollama, Mistral, Claude, and even custom models.

LangChain makes it easy to combine language models, tools, memory, vector databases, and agents to build robust GenAI applications — — from chatbots to AI assistants, from RAG systems to workflow automations.

Earlier, I have shared best ChatGPT courses, best Data Science courses and best Machine Learning courses as well as 10 Must Read AI And LLM Engineering Booksand in this article, I am going to share best Udemy courses to learn LangChain, RAG and AI Automation.

Being an aspiring AI developer myself and having enrolled in several top-rated courses on Udemy, I’ve handpicked the 6 best LangChain courses to help you upskill and stay ahead in this fast-moving field.

By the way, if you are new to AI world then I highly recommend you to start with The AI Engineer Course 2026: Complete AI Engineer Bootcamp, one of the most comprehensive resource to become an AI Engineer in 2026.

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Let’s dive in!

6 Best Udemy Courses to learn LangChain and RAG in 2026

Without any further ado and wait, here are the best online courses you can join on Udemy to learn not just LangChain but also RAG and AI agents automation, the hottest skill of 2026.

I learn better by joining multiple courses as every instructor explain things differently and when I learned from multiple folks, everything eventually falls in place.

You can also join one or more courses from this list for better learning.

1. LangChain — Develop LLM Powered Applications with LangChain

If you’re just getting started, this course is a great choice. It teaches LangChain using real-world examples, with full support for the latest LangChain version 0.3.0.

You’ll build a complete GenAI app and get comfortable with the LangChain ecosystem in a very hands-on way.

What you’ll learn:

  • Latest LangChain 0.3.0 features
  • Prompt templates, chains, memory, and agents
  • Build LLM-powered search and chatbot apps

This Udemy course is best for beginners who want to quickly get started by building something real.

Here is the link to join this course — — LangChain —Develop LLM Powered Applications with LangChain

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2. Complete Generative AI Course With LangChain and HuggingFace

This course is a power combo. It covers LangChain and HuggingFace in depth, helping you understand not only how to build GenAI apps but also how to deploy and optimize them for performance.

What you’ll learn:

  • Complete LangChain project lifecycle
  • How to use HuggingFace transformers in real apps
  • Deployment & optimization techniques

This Udemy course is best for intermediate developers who want to go beyond toy apps and work on scalable GenAI projects.

Here is the link to join this course — — Complete Generative AI Course With LangChain and HuggingFace

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3. LLM Engineering: Master AI, Large Language Models & Agents

If you’re serious about becoming an LLM engineer, this course is gold. It’s project-based and teaches you everything from RAG to fine-tuning and deploying AI agents using LangChain, Python, and popular libraries.

What you’ll learn:

  • Build 8 complete LLM apps
  • Master RAG, LoRA, LangChain tools
  • Real-world projects for GenAI devs

This LangChain course on Udemy is best for developers aiming for roles like AI Engineer or Generative AI Consultant.

Here is the link to join this course — — LLM Engineering: Master AI, Large Language Models & Agents

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4. AI-Agents: Automation & Business with LangChain & LLM Apps

This is one of the most popular LangChain courses with 21,000+ students and for good reason. It focuses heavily on AI automation, multi-agent systems, and how to monetize your GenAI apps.

What you’ll learn:

  • Use LangChain and LangGraph for multi-agent systems
  • Automate business workflows
  • Sell your AI tools as products

This Udemy course is again ideal for developers and entrepreneurs interested in AI automation for business.

Here is the link to join this course — — AI-Agents: Automation & Business with LangChain & LLM Apps

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5. 2026 Master Langchain and Ollama — — Chatbot, RAG and Agents

This is a hot and trending course, especially if you’re curious about working with local LLMs using Ollama and LLAMA 3.2. The course includes tutorials for building chatbots, RAG systems, and more — — all powered by LangChain and local models.

What you’ll learn:

  • Ollama + LangChain integration
  • Build local chatbot and RAG apps
  • Covers DeepSeek, LLAMA 3.2, and more

This Udemy course is better for devs who want to run LLMs locally without relying on OpenAI or cloud APIs.

Here is the link to join this course — 2026 Master Langchain and Ollama — Chatbot, RAG and Agents

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6. LangChain Mastery: Build GenAI Apps with LangChain & Pinecone

This course is perfect if you’re looking to build production-grade LLM applications with support for Pinecone vector DB. It teaches you how to integrate vector search, memory, and LangChain into a full-stack GenAI app.

What you’ll learn:

  • LangChain with Pinecone vector DB
  • How to build and deploy full-stack GenAI projects
  • Step-by-step code walkthroughs

Best for: Intermediate to advanced devs building retrieval-augmented generation (RAG) apps.

Here is the link to join this course — — LangChain Mastery: Build GenAI Apps with LangChain & Pinecone

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That’s all about the best Udemy courses to learn LangChain and RAG in 2026. Whether you’re just beginning your LangChain journey or looking to level up into full LLM engineering roles, these 6 courses will help you stay ahead of the AI curve in 2026.

By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

If you got a lot of time and want to save money, Udemy Personal Plan will be perfect for you. If you found this helpful, don’t forget to share or bookmark it for your AI learning journey!

Other AI, LLM, and Machine Learning resources you may like

Thanks a lot for reading this article so far, if you like these LangChain courses on Udemy then please share with your friends and colleagues. If you have any feedback or questions then please drop a note.

P. S. — If you want to learn from books and looking for best AI and LLM Books then I highly recommend you to read AI Engineering by Chip Huyen and The LLM Engineering Handbook by Paul Iusztin and Maxime Labonne, both of them are great books and my personal favorites. They are also highly recommended on Reddit and HN.

10 Artificial Intelligence and LLM Books Every Software Engineer Should Read in 2026

10 Must read AI and LLM Engineering books for Software Engineers who want to become an AI Engineers.

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    Top 6 Udemy Courses to Learn Software Architecture for Senior Developers in 2026

    Top 5 Software Architecture Courses for Experienced Developers

    Hello guys, Software architecture is an important topic for senior developers because it is one of those topics which makes a junior developer senior, hence its important for us to learn about System design and Software architecture as our experience grow to contribute at higher level.

    Though, its not an easy topic to master as its very vast and resources are hard to find.

    Many people doesn’t even know about software architecture but thanks to Microservices, people now at least know about Monolithic and Microservice architecture, but there are more, which we will learn in this article.

    In the past, I have shared best System Design Courses and best Software architecture courses, but a lot of you requested for Udemy courses so in this post, I will also share best Udemy courses you can buy to learn these Software architecture.

    Though, if you are in hurry then you can start with Software architecture courses by Michael Pogrebinsky on Udemy.

    He has created many high quality software architecture and large scale system design courses like Software Architecture & Design of Modern Large Scale Systems and The Complete Microservices & Event-Driven Architecture, which are best to start with. They are also very affordable.

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    And, if you are preparing for Software Architecture certification then Certified Professional for Software Architecture — — Foundation Level (CPSA-F) Training is another great resource worth looking. It’s bit expensive but if you want to grow as Software Architect then totally worth it.

    iSAQB CPSA-F On-Demand Certification Training for Software Architects - Top Developer Academy

    The only self-paced, on-demand iSAQB-accredited CPSA-F online course. The Certified Professional for Software…

    topdeveloperacademy.com

    6 Best Software Architecture courses on Udemy in 2026

    Now, is the time to see Udemy courses you can join to learn Software architecture. Without any further ado, here is a list of best Software architecture courses you can join on Udemy in 2026.

    They are updated, in-depth, and also very affordable. Most of the courses you can buy for just $10 on Udemy Sale which is happening now.

    1. Software Architecture & Design of Modern Large Scale Systems by Michael Pogrebnisky

    This Software design and architecture course was 5th in our ranking last year but now it has jumped to 2nd place due to amazing response from our readers and other people who have taken this course.

    Created by Michael Pogrebinsky this Software architecture course will teach you how to design large and distributed system in 2026.

    Having joined his Java Concurrency course it was no brainer for me to join this course and I must say I wasn’t disappointed.

    If you are an experienced developer who not only want to crack System design interview but also learn about Software architecture to become a Software architect or solution architect then this Udemy course is perfect for you.

    Here are things you will learn in this course:

    1. How to design large scale systems which can handle millions of requests/day

    2. How to design for scalability and high availability.

    3. Software architectural patterns, building blocks and best practices

    4. How to define the system’s technical requirements, high level components and API

    5. Software Architecture & Technology of Large-Scale Systems

    After going through this course, you will have solid knowledge of Software arhictecture which is used in large scale systems. I highly recommend this Software architecture course to experienced Java developers.

    Here is the link to join this course — — Software Architecture & Design of Modern Large Scale Systems

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    Also, after huge success of this course Michael has also launched two more courses on System Design and Software architecture, first one is Software Architecture & System Design Practical Case Studies and second one is The Complete Cloud Computing Software Architecture Patterns, both of them effectively complement this course.

    If you can afford, you can join all three courses to master both System design and Software architecture in 2026.

    2. Software Architecture & Technology of Large-Scale Systems by Anurag Yadav

    This is another Software architecture course on Udemy which is worth checking out for experienced developers . It’s also one of the most comprehensive System design course with more than 25.5 hours of content while other course only provides content of 5 to 8 hours.

    This Software architecture course will teach you how to create Software Systems with High Performance, Scalability, Availability, Security using Modern Technologies.

    The course start with a basic three tier application architecture then move along with advanced and modern software architecture like Microservices and distributed system.

    You will also learn how to cater Non-Functional Requirements like How to design architecture considering Performance, Scalability, Reliability, and Security.

    You will also get exposure of highly scalable technology and tech stack like Nodejs, Redis, Cassandra, Kafka, Hadoop, Elasticsearch etc. More importantly you will learn how to use Docker and Kubernetes for large scale production deployment, a key skill in this era of cloud computing.

    Here is the link to join this course — — Software Architecture & Technology of Large-Scale Systems

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    3. Microservices Architecture — — The Complete Guide by Memi Lavi

    Memi Lavi is another instructor on Udemy which I admire a lot for his immense knowledge in Software architecture, cloud computing, particularly Azure, and system design and this course is another exhibition of his awesome skill to explain complex software concepts in simple, human language.

    This 5 hour long course covers Microservices Architecture, including its fundamentals, identifying predecessors and associated problems, exploring the nine attributes of Microservices.

    You will also learn about the architecture process, designing robust and reliable microservices, deploying and testing them effectively, delving into Service Mesh concepts, understanding when not to use Microservices, and exploring strategies for breaking a monolith into microservices.

    Talking about social proof, this course has got an impressive rating of 4.5 out of 5 from a substantial 12,669 reviews, the course has attracted a vast student base of 63,991 individuals.

    Here is the link to join this course — — Microservices Architecture — — The Complete Guide

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    Whether you are a beginner or experienced developer, this course stands as a valuable resource in mastering Microservices Architecture.

    If you like this course, you can also checkout Mavi’s other courses on Software architecture, many of them are worth watching, particularly, The Complete Guide to Becoming a Software Architect

    4. Master Software Architecture & System Design for Developers

    This is a new course on Udemy which I found this year and I very happy to share with you as its one of the better courses you will find on Software architecture topic.

    Created by Munawar Ali, this course can be used to master System Design, Software Architectures, Microservices Architecture, AWS Services and learn to crack senior developer interviews.

    Here are things you will learn in this course:

    • Understanding the vision and role of Software Architect
    • Master the Core Principles of Software Architecture and System Design
    • Learn Basic AWS Services. Specially services that are used in Architectures and protocols (like REST, gRPC etc).
    • Mastering Architectures like SOA, Microservices, Event Driven Architectures etc.
    • Practicals in Portal of AWS Services, so that Students can practically learn these services

    It’s also now the highest rated Udemy course on Software architecture for 2026.

    Here is the link to join this course — Master Software Architecture & System Design for Developers

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    5. The Complete Cloud Computing Software Architecture Patterns

    This is another Software architecture course from Michael Pogrebinsky on Udemy which is designed to teach you skills needed to architect large-scale systems using cloud computing, software architecture patterns, and modern system design principles.

    In this course you will learn the role cloud play in designing and architecting modern large-scale software systems, solve challenging system design problems, utilize software architecture patterns effectively, and leverage cloud computing to serve millions of users globally.

    By the way, if you like Michael’s teaching style then you will also like his other courses on software architecture and distributed system design like Software Architecture & Design of Modern Large Scale Systems and The Complete Microservices & Event-Driven Architecture, both are awesome courses like his course on concurrency and Java performance.

    Here is the link to join this course — — The Complete Cloud Computing Software Architecture Patterns

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    6. Software Engineering 101: Plan and Execute Better Software by Kurt Anderson

    This is another Udemy course which I found worth watching to learn Software Engineering and Architecture. Created by Kurt Anderson, an YouTube Guru and master creator.

    This course will teach you most of the key architectures we have covered in this article like Master-slave, Layered Pattern, Client-Server, Pipe-Filter, and much more.

    Instructor is also very good story teller and this class flows like a river, you are definitely going to like it.

    One of the reason I watched this course. It also doesn’t bore you with a lot of details, so if you are looking for a quick introduction of key software architecture this course is for you.

    Here is the link to join this course — — Software Engineering 101: Plan and Execute Better Software

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    10 Software Architecture Every Experienced Developer Should Know

    Here is a list of most popular Software architecture and their brief explanation with their pros and cons, as a senior developer you should have this much information all the time.

    1. Monolithic Architecture

    Traditional architecture where the entire application is built as a single unit. It’s simple to develop and deploy but can be challenging to scale.

    2. Microservices Architecture

    An architectural style that structures an application as a collection of loosely coupled services, each responsible for a specific business function. It enables scalability, flexibility, and easier maintenance. You can also see these courses to learn Microservices architecture.

    3. Service-Oriented Architecture (SOA)

    This architecture is similar to microservices but with a focus on providing services via a network. SOA aims to make applications more modular and interoperable by defining services with well-defined interfaces.

    And, if you want, you can also see these courses to learn SOA Architecture

    4. Event-Driven Architecture (EDA)

    This is a style of software architecture where the flow of events triggers the execution of certain actions. It’s useful for building systems that react to and process a large number of events in real-time.

    5. Layered Architecture

    This Software architecture organizes the software into distinct layers (e.g., presentation layer, business logic layer, data access layer) where each layer only communicates with adjacent layers. It promotes modularity and separation of concerns.

    6. Hexagonal Architecture (Ports and Adapters)

    This Software architecture focuses on creating software that’s easy to test, maintain, and understand by separating the core logic from external concerns like databases and user interfaces.

    7. Clean Architecture

    An architecture pattern that emphasizes separation of concerns and the dependency rule. It aims to create systems that are flexible, scalable, and maintainable by organizing code into concentric circles or layers.

    8. Event-Driven Microservices

    This Software architecture combines microservices architecture with event-driven architecture, where services communicate asynchronously through events. It offers benefits like loose coupling, scalability, and resilience.

    9. CQRS (Command Query Responsibility Segregation)

    This is architecture pattern which separates the read and write operations of a data store into separate models. It’s useful for complex applications where read and write requirements differ significantly.

    10. Serverless Architecture

    This architecture allows developers to build and run applications and services without managing infrastructure. Code is executed in response to events, and resources are automatically allocated by the cloud provider.

    Here is also a nice diagram which shows how these architecture works with animation,

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    image credit — — Rocky Bhatia on LinkedIn, You can follow him also, he share useful content like this.

    That’s all about the best Software architecture courses on Udemy in 2026. As I said, Software architecture is an essential topic for experienced developers and they should invest time and effort to learn it.

    When it comes to finding affordable resources, there is no better place than Udemy, that’s why I have shared these best Udemy courses to learn Software architecture, including Microservices.

    You can also get these courses for $10 a piece on Udemy sale which is happening now. I already bought a lot of courses for learning new technology and reviewing them this summer.

    By the way, if you want to join multiple course on Udemy, its may be worth getting a Udemy Personal Plan, which will give instant access of more than 11,000 top quality Udemy courses for just $30 a month.

    Other System Design Interview Resources you may like

    Thanks for reading this article so far. If you like these best System design Interview Courses from Udemy then please share them with your friends and colleagues. If you have any questions or feedback then please drop a note.

    P.S. — And, if you are preparing for Software Architecture certification then Certified Professional for Software Architecture — Foundation Level (CPSA-F) Training is another great resource worth looking. It’s bit expensive but if you want to grow as Software Architect then totally worth it.

    iSAQB CPSA-F On-Demand Certification Training for Software Architects - Top Developer Academy

    The only self-paced, on-demand iSAQB-accredited CPSA-F online course. The Certified Professional for Software…

    topdeveloperacademy.com

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