Tuple - Tuple is a Mac-only remote pair programming tool for discerning developers
Kite - Kite helps you write code faster by bringing the web's programming knowledge into your editor.
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
HackerRank Interview - An all-in-one solution for remote technical interviewing.
Coding Rooms - Real-time platform for teaching programming that enables instructors to see all their students' code live and help them from a single interactive dashboard with integrated audio, video, chat, and recording + playback.
CrankWheel - Insanely simple, enterprise-friendly screen sharing, free for individual use.