6 Free Udemy Courses to Learn Java Multithreading and Concurrency in 2025
My favorite free Udemy tutorials and courses for learning multithreading and concurrency in Java
Hello guys, if you want to learn multithreading and concurrency in Java and looking for best free resources like online courses and tutorials then you have come to the right place.
Earlier, I have shared best free Java Courses and best free Spring Framework courses and today, I will share best free online courses to learn Multithreading and Concurrency in Java.
Multithreading is one of the important skill for Java programmers as companies are always in hunt of Java programmer who are good at multithreading and concurrency but at the same time its very hard topic to master.
Acquiring solid multithreading and concurrency skill require a lot of hard worked and years of experience but you can speed up by joining best Java multithreading courses and learning from expert.
In that article, I have shared best courses to master Java Multithreading but those are not free and many of you asked me to share free courses for Java multithreading so here I am with a list of best free Java Multithreading courses for both beginners and experienced Java programmers, like 2 to 5 years of experience.
But, before we get to the 5 best free udemy courses that will teach you everything you need to know about Java Multithreading, let me tell you what it really is.
Multi-threading is a computer science concept which basically means executing multiple task in parallel.
There are many ways to achieve it , for exam, in Java multithreading consists of executing two or more threads simultaneously.
This allows you to get the maximum utilization of the CPU. These applications can execute two or more threads and run concurrently.
By the way, if you are an experienced Java developer and looking for a course to take your Multithreading and concurrency skill to next level then I also suggest you to check out Java Multithreading, Concurrency, and Performance Optimization course on Udemy.
It’s a great course to learn how to write high performance Java application using concurrency features of java programming language and library. Though, its not free.
6 Free Online Java Multithreading and Concurrency Courses from Udemy in 2025
Java Multi threading is also known as concurrency in Java. This means that each thread runs parallel to the others. You will also be able to save memory as these threads don’t allocate separate memory areas.
This also allows you to do context switching more easily and efficiently.
There are many advantages if you are using multi-threading. For example, you can perform multiple operations at the same time as the threads are independent and the users are not blocked.
And because the threads are independent, the other threads will not get affected if one thread meets an exception.
But there are some things that you need to be aware of. If one thread is in the process of writing some data and another thread is reading this data at the same time, there may be some inconsistency in the application.
Here we have compiled a list of the 5 free Java Multi threading and concurrency courses that you can use right now. Keep reading to find out more.
1. Java Multithreading [Udemy Free Course]
This is a fantastic course that will help you uncover the mysteries of multithreading in Java. You will be able to understand what multithreading exactly is as well as how it works in Java.
By the time you finish this course, you will be fully equipped to write effective multi-threaded code.
This course is perfect for Java developers as well as Java beginners who are looking to enter this amazing world and are not afraid of a steep learning curve. The entire course content is divided into 2 sections and 16 lectures.
Course Duration: 3 hours
Course Rating: 4.6 stars out of 5
Course Instructor: John Purcell
Course Price: Free
The instructor of this course is John Purcell, who is a software development trainer. He is one of the most popular instructors on the Udemy platform and has a 4.4-star instructor rating. More than 260,000 Java programmers have already joined this course which is a big indicator of how good this course is.
Here is the link to join this Multithreading course for FREE — Java Multithreading
2. Master Java Multithreading Programming From Zero (Modern) [Free]
This is another wonderful free online course that will help you learn Java threading programming using modern Java techniques like Lambdas and Streams with a hands-on step-by-step approach. You will also learn about parallel programming with Thread class.
You will be able to understand the difference between sequential and parallel processing as well as volatile and non-volatile programs. The course will give you an idea of when to use synchronized blocks and synchronized methods.
You will also learn about a lot of interesting things like Locks, semaphores, Executor, Executor thread pool, and concurrent utilities such as Latch and Cyclic Barrier.
Course Duration: 9 hours
Course Rating: 4.8 stars out of 5
Course Instructor: Syed Ahmed
Course Price: Free
The instructor of this course is Syed Ahmed, who is a Principal Engineer with more than 16 years of experience in Java programming.
Talking about social proof, more than 19,000 Java developer have join this course to learn Multithreading and it got on average 4.7 rating which is much better than many paid Java courses out there. I highly recommend this course to anyone who wants to learn Java multithreading from scratch.
Here is the link to join this course — Master Java Multithreading Programming From Zero (Modern)
3. Multithreading Interview Preparation Q/A [Free Udemy]
This is another free Udemy course for Java programmers to learn multithreading and concurrency from scratch. Using this exciting course, you will be able to learn Java programming and become a Java software developer within 6 months.
The course will teach you everything about the basics of the Java Multithreading in a practical and hands-on way. The course content covers different subjects like installation of all the necessary software as well as the creation and running of your first functional application.
Course Duration: 1 hours 45 minutes
Course Rating: 4.5 stars out of 5
Course Instructor: Neslihan Bozer
Course Price: Free
A complete java multithreading syllabus covered with real time example. You can also can prepare for for fresher Java interview.
Here is the link to join this fee course — Multithreading Interview Preparation Q/A
4. Learn Java Multithreading From Scratch — Prepare Interview
This is another fantastic free Java course that will help you become an expert in multithreading and parallel programming in Java. The course has a very strong emphasis on high performance.
This course will help you gain complete knowledge of Java multithreading and concurrency support, which means that you will learn everything there is to know about it.
You can even use this course for preparing for interviews.
The syllabus of this course is fully rounded and complete which means that you will be getting your money’s worth.
Course Duration: 2 hours
Course Rating: 4 stars out of 5
Course Instructor: Ashish Gadpayle
Course Price: Free
The only requirements for this course are a computer with JDK installed and a simple text editor. You will be able to use your computer using concurrency and parallel programming.
You will also be able to prepare for technical campus interviews and you will also be able to find more solutions than average students.
Here is the link to join this fee course — Learn Java Multithreading From Scratch — Prepare Interview
5. Java Tutorial For Complete Beginners [Udemy]
This is another exciting free Java course on Udemy that will teach you how to program using the Java programming language. You only need to have a basic level of familiarity with computers to attend this course.
This course is perfect for anyone who wants to learn Java. The entire course content is divided into 8 sections and 73 lectures.
The instructor of this course is John Purcell, who is a software development trainer.
Course Duration: 17 hours
Course Rating: 4.4 stars out of 5
Course Instructor: John Purcell
Course Price: Free
This is also one of the most popular free Java Course on Udemy with more than 1.7 million learners already enrolled in this course. If you are just starting with Java and need a free Resource of tutorial then this is for you.
It got 4.4 rating from close to more than million students which is simply amazing. I highly recommend this free Java course to anyone starting with Java.
Here is the link to join this course Java course for FREE — Java Tutorial For Complete Beginners
6. Java Threads Fundamentals (Free Udemy Course)
Java Threads Fundamentals on Udemy is another free course designed to help developers master the essentials of multithreading in Java.
It starts by explaining the difference between multitasking (running multiple processes) and multithreading (running multiple threads within a process), clarifying how threads interact with system resources like CPU and memory.
Course Duration: 1 hours 13 minutes
Course Rating: 4.3 stars out of 5
Course Instructor: Adaption tech
Course Price: Free
The course then dives into practical skills, teaching you how to create, start, and manage threads in Java using both the Thread class and the Runnable interface. You’ll also learn best practices for writing efficient and thread-safe code, avoiding common pitfalls like race conditions and deadlocks.
Here is the link to join this course Java course for FREE — Java Threads Fundamentals
Java Multithreading and Concurrency Cheat Sheet
And, here is a nice cheat sheet highlighting key Java multithreading and concurrency concepts. You can use this to quickly revise all essential Java multithreading concepts before interviews
That’s all about the 6 free online courses to learn Java Multithreading and Concurrency in 2025. As you can see most of these free courses are from Udemy but many people don’t even know that how to find free course on Udemy and even if they exists, that’s where this list can help you.
If you liked this list of the 5 best free courses that you can use to learn everything you need to know about Java multithreading, feel free to share it with your friends and family.
You can also drop a comment if you have any doubts about multithreading in Java and we will get back to you in an instant.
By the way, if you want to join multiple courses on Udemy then you can also checkout Udemy’s Personal Plan, where you get access to best of Udemy’s 11000+ courses for a monthly fee of $30.
If you want to join multiple courses then Udemy Personal Plan is actually a better deal. You can also try for free for 7 days to get a feel of it.
So, what are you waiting for? Pick a course, start learning, and join the Java developer community
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Thanks for reading this article so far. If you like these best free Java Multithreading courses on Udemy and find them helpful, please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note.
P. S. — If you don’t mind paying a few bucks for learning a valuable skill like Java Multithreading, then I highly recommend you check out Java Multithreading, Concurrency, and Performance Optimization course on Udemy , which are both comprehensive and very engaging. If you already know Java and want to take your multithreading skill to next level then this course is for you.
And now, over to you, which one is your favorite book or course to learn multithreading and concurrency in Java?
