
SourceForge
GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
StudyStack
Quizlet
Brainscape
Kahoot!
Anki
McGraw-Hill Connect
POWERPREP II
USATestprep
SourceForge
StudyStackGitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Brainscape - Find, create, and study SMART FLASHCARDS on any device. DOUBLE your learning speed using the most effective study system on the planet. Keep all your content in sync across Brainscape's website and your Android devices.
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Kahoot! - Kahoot! makes it easy to create, play and share fun learning games in minutesโfor any subject, in any language, on any device.