Hi Product Hunt! 👋

I'm Sangho, a grad student at POSTECH. I write papers in LaTeX every day, and I wanted an editor that keeps up with how papers actually get written now: co-authors, reviewers and round after round of revisions.

So I built OpenTex, a free alternative to Overleaf that runs right in your browser:

Real-time co-editing: invite co-authors and pick their role (editor, reviewer or viewer)
pdfLaTeX and XeLaTeX compiled in your browser, with no install and no compile timeout
Track changes, suggestions and review comments, with a review history that stays
Unlimited version history: label it, diff it, restore it
Two-way GitHub sync
A paper library that only pulls references from real registries

No account needed to start: open it and write. Sign in with Google when you want to save to your account and share.

It's free, and I want to keep it that way. If it helps you, sponsoring keeps the compiler running: opentex.ai/support 🙏

Coming next: an AI reviewer that reads your draft like Reviewer 2… before Reviewer 2 does.

I'd love your feedback. What would make you switch for your next paper?