Description: Kittl is a free, open-source alternative to Google Keep for taking notes, creating to-do lists, and more. It has a clean, intuitive interface and offers real-time collaboration features.
Type: software
Pricing: Open Source
Description: Stack Overflow is a popular question and answer site for programmers. Users can ask coding questions and receive answers from a community of developers. The site has a reputation system to rate helpful responses.
Type: software
Pricing: Subscription