Overleaf

The easy to use, online, collaborative LaTeX editor. There's nothing complicated or difficult for you to install, and you can start using LaTeX right now, even if you've never seen it before. Overleaf comes with a complete, ready to go LaTeX environment which runs on our servers. Overleaf makes sure that you're always up to date with your collaborators and what they are doing. There is only a single master version of each document which everyone has access to. It's impossible to make conflicting changes, and you don't have to wait for your colleagues to send you the latest draft before you can keep working.