Description: GeeksforGeeks is a computer science portal with a huge variety of well-written and explained computer science and programming articles, quizzes and interview questions. It covers topics like data structures, algorithms, operating systems, languages like C++ and Java, and more.
Type: software
Description: LimeSurvey is an open source online survey tool for building and publishing online surveys. It allows users to create simple to advanced surveys, add logic like branching, distribute via links, and analyze response data.
Type: software
Pricing: Open Source