Description: htmlreference.io is a free and open-source reference guide for HTML, listing elements, attributes, events, color names, entities, HTTP messages, and more. It aims to provide a one-stop detailed reference for HTML.
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