freeCodeCamp
Description: freeCodeCamp is a free, open source coding platform that offers interactive coding challenges and projects to help people learn web development. It has a large community of developers and allows users to earn certifications.
Type: software
Pricing: Open Source
LangParty
Description: LangParty is a free language exchange platform that allows people learning different languages to connect through text, voice, and video chat. Users match with partners who are native speakers of the language they want to practice. Partners take turns helping each other improve conversation skills.
Type: software