Description: CodePen is an online code editor and front-end web development environment. It allows developers to easily create and share HTML, CSS, and JavaScript code snippets and projects.
Type: software
Pricing: Freemium
Description: Insight Maker is a free online simulation tool that allows users to model complex systems through causal loop diagrams and stock and flow models. It enables conceptualizing, building, running, analyzing, and sharing simulation models of real world processes.
Type: software