Boostnote - Boostnote is an open-source note-taking app.
Drawasaurus - Drawasaurus is an online drawing & guessing game you can play with friends or strangers.
Supernotes - The fastest way to take notes and collaborate with friends. Create notecards with Markdown, LaTeX, images, emojis and more. Get started for free!
skribbl - Word guessing based on drawing.
Draft - A tool for developers to create cloud-native applications on Kubernetes
gartic.io - Draw, guess, and win!