Overleaf is a collaborative, cloud-based LaTeX editor. Overleaf is a great way to get started in LaTeX document creation. No special software is needed—just a Web browser. The basic version of Overleaf is free.
With no software to download or install, Overleaf is probably the easiest first step into document creation with LaTeX. You can set it up so that changes you make are immediately visible in your document, without having to manually compile. Overleaf also simplifies collaboration between two or more persons, although a free account allows only one collaborator.