ChannelSync - Discord is great, we know it, but unfortunately it acts as a gateway for information openess.
RecordScreen.io - Record screen right from browser. No installation required.
Linen - Business Tools, Collaboration, and Slack Tools
Loom - Loom is a screen recording extension for Chrome that gives people the ability to create and share media. Create your own videos using your camera, screen view, and audio. Read more about Loom.
Flarum - Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.
Claquette - Seamlessly record your Mac's screen, microphone and camera