letX

letX is a collaborative LaTeX editor that runs in your browser. Multiple people can write in the same project at once, with live cursors and edits that merge without overwriting — so teams don't have to email .tex files around or pay to collaborate. It compiles to PDF in about a second, no local install needed, with version history, SyncTeX syncing, and ZIP import for existing projects. We built it while writing our thesis, because real-time collaboration was paywalled on the tool we used. letX keeps unlimited collaborators free, includes 80+ templates, and never uses your writing to train AI. Used by students and researchers at 40+ universities.

LetX is a free online collaborative LaTeX editor designed for student teams. It allows users to compile documents quickly, work together in real time, and maintain the privacy of their unpublished work. With over 1000 templates available, LetX simplifies the process of writing academic papers and projects. Users can create and edit LaTeX documents simultaneously with their team members using LetX's real-time collaboration features. The platform supports unlimited collaborators without conflicts, compiles documents to PDF in seconds, and maintains a full version history allowing users to revert to earlier edits. Instant templates are also available to assist users in starting their projects easily. LetX is for students and researchers across universities worldwide who need a collaborative writing tool for LaTeX documents. It caters especially to those involved in group projects, allowing them to work together efficiently with features like real-time editing and version history.