Exercism
Code practice with human mentoring.
LearningFree· OSSNo ratings
#Non Profit
Sites tagged with Non Profit.
Codeberg
Non-profit git hosting for free software.
Developer ToolsFree· OSSNo ratings
freeCodeCamp
Learn to code — for free, forever.
LearningFree· OSSNo ratings
OWASP
The open standard for app security.
CybersecurityFree· OSSNo ratings
Khan Academy
Free world-class education.
LearningFreeNo ratings