is a secure, interactive on-line writing environment that makes it easy to create beautiful LaTeX documents. Overleaf encourages you to concentrate on writing your content while LaTeX takes care of all the style and formatting to provide you with high-quality publications.
The student plan is free. It allows one collaborator. For more check the Overleaf plans.
References can be copied to a BibTex format from EndNote.
Paste into Notepad and save. (In LaTeX or the text editor you are using you can change the .txt to .bib.)
You can also use Paperpile's EndNote to BibTeX converter
Weir, B.S. (2012) Step-by-step guide to using EndNote with LaTeX and BibTeX. NZ Rhizobia website. http://www.rhizobia.co.nz/latex/convert