FastLaTeX - Free Online LaTeX Editor for Phone, Tablet & Desktop

FastLaTeX is a free, private LaTeX editor that compiles real PDFs entirely in your browser. No account required, no server uploads, fully offline. Write research papers, theses, CVs, cover letters, and presentations on any device - phone, tablet, or desktop.

Why FastLaTeX

• Free LaTeX editor - no account, no subscription, no limits
• Works on phone and tablet - compile LaTeX anywhere
• Real pdfTeX compilation in your browser via WebAssembly
• Fully offline - works without internet after first load
• Private - your documents never leave your device
• Free alternative to Overleaf with no upload restrictions

Features

• LaTeX syntax highlighting, autocomplete, and error detection
• Templates: IEEE, Elsevier, ACM, Beamer slides, ModernCV, theses
• Multi-file projects with images, BibTeX, and custom packages
• Citation and cross-reference autocomplete from BibTeX
• Version history with automatic snapshots
• Document outline and project search
• Vim keybinding support
• Light and dark mode
• Export as PDF or ZIP, import ZIP projects
• Pinch-to-zoom PDF preview on mobile