There are numerous online platforms that offer free resources to learn Data Structures and Algorithms. These platforms provide comprehensive tutorials, interactive coding challenges, and practical examples to help you grasp the concepts effectively. Some popular options include online coding communities, university websites, and a range of online training platforms. You can access video lectures, coding exercises, and interactive coding platforms that cater to various skill levels, depending on which course you pick. If you're looking for a free DSA course with certificate upon completion, this course by KnowledgeHut is a great example.