Text
https://etherpad.net/ # collaborative
https://stackedit.io/ # md
http://www.paperr.in/ # localStorage, PDF export
Code
https://codesandbox.io/ # ide w/ collab
https://stackblitz.com # ide
https://codeshare.io/ # pad w/ visio
Chat
https://darkwire.io/Mz1HL7BQb # 100% crypted
VSCode Ressources
https://github.com/viatsko/awesome-vscode
Notes and knowledge management
https://notable.app/
https://joplinapp.org/
https://www.notion.so
https://gitmind.com