ProductLive in productionShahriar Labs

LetX

Real-time Collaborative LaTeX Editor

LetX is a real-time collaborative LaTeX editor with unlimited free collaborators and cloud compiles on full TeX Live — a free Overleaf alternative.

Visit live site

Templates

1000+

Collaborators

Unlimited

Users

1,300+

About this project

LetX is a real-time collaborative LaTeX editor built by Shihab Shahriar Antor at Shahriar Labs. Documents sync between authors through Yjs CRDTs, and compiles run server-side on managed infrastructure with a complete TeX Live installation, so pdfLaTeX, XeLaTeX and LuaLaTeX all behave exactly as they do locally with no packages missing. Every project gets unlimited real-time collaborators on the free plan, and user documents are never used to train AI models.

Highlights

Cloud compiles on full TeX Live — pdfLaTeX, XeLaTeX and LuaLaTeX, no missing packages
Yjs CRDT real-time collaboration, unlimited collaborators on every free project
1000+ ready-to-use templates across 20 categories, including university theses and lab SOPs
Import an existing Overleaf project by uploading its .zip
Documents are never used to train AI models