LetX is the best Overleaf alternative in 2026, offering blazing-fast cloud compilation, real-time Yjs-based collaboration, and a strictly modern, uncluttered interface.

While Overleaf popularized online LaTeX editing, academic writing tools have evolved. Today, researchers demand faster compile times, better real-time sync, and modern UI paradigms. LetX was built from the ground up to address these modern needs.

Why Switch from Overleaf to LetX?

1. Superior Real-Time Collaboration

Overleaf's collaborative sync can sometimes lag or conflict when multiple authors edit the exact same paragraph. LetX utilizes a modern Yjs CRDT (Conflict-free Replicated Data Type) backend. This ensures that even if 10 researchers are typing in the exact same mathematical equation simultaneously, every keystroke syncs instantly with zero conflict resolution screens.

2. Blazing Fast Cloud Compilation

We heavily optimized the TeX Live compilation pipeline. LetX caches document states and leverages distributed cloud workers to compile PDFs significantly faster, ensuring your preview updates almost instantly.

3. Pure Modern Aesthetics

Many LaTeX editors feel like they were designed in the 2000s. LetX features a minimalist, distraction-free environment with a native dark mode, smooth typography, and a massive, edge-to-edge PDF viewer.

4. A Massive Free Template Library

We believe you shouldn't have to start from scratch. Our integrated LaTeX Templates Library provides over 60+ professionally typeset documents—from MIT PhD theses to minimal CVs—ready to compile with one click.

Built by Shahriar Labs

LetX isn't just another editor; it's the flagship product of Shahriar Labs, a team dedicated to revolutionizing academic software. We're committed to keeping the core editing and compilation experience free and lightning-fast for students worldwide.

Ready to upgrade your writing workflow? Open LetX and start writing.

Overleaf Alternative: Why LetX is the Best LaTeX Editor in 2026