Overleaf allows the addition of just one collaborator with a free account. There is still a way to share a LaTeX document among the members of a team, however!
Adding collaborators may be limited in the free account, but
link sharing is still a free service. You can collaborate in real-time on a LaTeX document via link sharing:
- Open a LaTeX document you wish to share with collaborators.
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From the top menu, click the Share button.
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In the Share Project window, select Turn On Link Sharing.
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In the Share Project window, copy the link below the text: Anyone with this link can edit this project, either by highlighting the link and pressing [Ctrl] and [C] keys, or by clicking Copy icon to the right of the link.
- Anyone who follows that link and logs into their Overleaf account should be able to edit the LaTeX document, and you should all be able to edit it in real time!