Description: .NET Regular Expression Designer is a free open source tool by Microsoft that allows developers to visually create, test, and debug .NET regular expressions. It has features like syntax highlighting, testing against sample text, and explanation of regex components.
Type: software
Pricing: Open Source
Description: Khan Academy is a free online learning platform that offers practice exercises, instructional videos, and personalized learning dashboard for K-12 and college level students. Subjects covered include math, science, economics, history, grammar, and more.
Type: software
Pricing: Free