For every professional programmer, data structure, and algorithms (DSA) are the two most fundamental areas to master.  The more efficient you are in data structure and algorithms, the better you can evaluate the efficiency of an algorithm, make your code scalable, and effectively utilize memory. 

Importance of mastering Data Structure & Algorithms:

Data Structures and Algorithms are the building blocks to design and develop an efficient software application. Data structures store objects and allow their manipulation, and they can be –

  • Linear – arrays, stacks, linked lists, or queues
  • Nonlinear – trees, graphs, tables, or sets

On the other hand, algorithms help in defining clear steps and conceptualizing solutions in terms of distinct steps in a process. Data Structures and Algorithms alter the system by providing accessibility of data and increase the efficiency of the product. They also aid in analyzing the time and space performance of algorithms. 

The difference between average and great programmers is often due to knowledge of data structure and algorithms.  Whether you are beginning your programming journey – or going back to explore the fundamentals, mastering DSA would make a world of difference. At Naukri Learning, we have put together an updated list of free data structures and algorithms courses to help you master these topics.


Some of the trending free courses that benefit professionals with upskilling their concepts of data structure and algorithms. These online courses also provide sounder understandability and learning on the subject. Here is the curated list of data structure and algorithms courses:

Data Structures and Algorithms: Deep Dive Using Java by Udemy

Description: This course is designed for developers with basic knowledge of Java or other programming languages, and are looking to understand data structures and algorithms deeply. It includes detailed topics of data structure such as arrays, linked lists, trees, sort algorithms, hash tables, and others.

Level: Intermediate

Implementing and Understanding Data Structures in Java by Pluralsight

Description: You will learn how to implement and understand data structures in Java. Also, this course covers building core data structures used in software development by utilizing core Java programming language.

Level: Beginner

The Coding Interview Bootcamp: Algorithms + Data Structures by Udemy

Description: With this video course, you will get acquainted with the most common interview questions asked in a coding interview. Learn how to ace your next whiteboard interview.

You will get to practice on various important questions and learn the question-solving tricks.

Level: Intermediate

Object-Oriented Java Programming: Data Structures and Beyond Specialization by Coursera

Description:  With this course, you will learn object-oriented programming principles for using Java and implementing data structures and algorithms for organizing large amounts of data. 

Level: Intermediate

Working with Graph Algorithms in Python by Pluralsight

Description: In this course, you will get to explore different kinds of graph algorithms, their use cases, and implementation. You will get the understanding of these principles and develop necessary skills to implement them into simple, easy to follow Python codes.

Level: Beginner

Data Structures and Performance  by Coursera

Description: This course is designed for candidates with experience in software development or a background in computer science. You will learn how to use and analyze data structures in industry-level applications, and how these data structures make programs more efficient and flexible. 

Level: Beginner

Mastering Data Structures & Algorithms using C and C++ by Udemy

Description: Learn more about data structures in detail and improve your problem solving and analytical skills so that it helps you solve challenging problems and use Data Structure efficiently.

Level: Intermediate

Object-Oriented Data Structures in C++ by Coursera

Description: With this course, you will learn the use of data structure in C++ and the ways to implement data structures as C++ classes. 

Level: Beginner

Master the Coding Interview: Data Structures + Algorithms by Udemy

Description: Learn how to master the coding interview and grab offers from your dream company.  Learn how to implement and use different data structures and algorithms.

Level: Advanced

Using Advanced Data Structures in Modern Applications by Pluralsight

Description:  Learn about a variety of such data structures that are incredibly useful but normally outside the scope of introductory courses in programming or algorithmics, using advanced data structures in modern applications. 

Level: Advanced

Python Data Structures by Udemy

Description: Learn about the core data structures of the Python programming language, explore how we can use the Python built-in data structures such as lists, dictionaries, and tuples to perform increasingly complex data analysis.

Level: Intermediate

Programming Data Structures in R by Pluralsight

Description: With this course of programming data structure in R, you will get an understanding of five data structures, namely lists, vectors, data frames, and factors.

Level: Intermediate

The EndNote

Good luck with your programming journey! Enhance your technical expertise and proficiency with these free online courses on data structures and algorithms, and level-up in your career.

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