LetX review
A collaborative LaTeX editor with PDF compilation, templates, and paid AI features.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
LetX is a browser-based LaTeX editor for students, researchers, and research teams writing papers, theses, and other documents together. Authors can edit simultaneously with shared cursors, leave inline comments, and compile projects to PDF on LetX’s servers, without a local LaTeX installation. Templates and bibliography compilation through BibTeX and biblatex support common academic writing workflows. Its fit is strongest for collaborators who want a shared cloud workspace; writers who prefer a local editor or need a different document workflow may want another tool.
The collaboration and writing features are the central draw. Real-time coauthoring is available on the Free plan, which also allows unlimited collaborators and includes 1000+ templates. LetX compiles bibliographies through BibTeX and biblatex, while version history and comments support review across a project. Pro adds full version history and GitHub import and export, as well as a priority compile queue. The product is web-based and cloud-deployed, with GitHub, Claude, ChatGPT, BibTeX, and biblatex listed among its integrations. The GitHub workflow is specifically a Pro feature, while the AI assistant is available on paid plans.
The Free plan is $0 per month forever, with 40 compiles per day, builds up to 2 minutes, and the last 15 versions of history. Pro costs $18 per user per month with monthly billing or $180 per user per year with annual billing; both options include unlimited compiles, builds up to 5 minutes, full history, GitHub import and export, and a monthly Lexi AI allowance. Classroom / Lab includes Pro for each seated member, a shared team or university workspace, an admin console, bulk invitations, an activity log, managed seats, and onboarding support. LetX makes sense for teams whose work centers on LaTeX collaboration and server-side PDF builds. Writers who do not need coauthoring, bibliography compilation, or the paid GitHub and AI features may find the plan scope unnecessary.
LetX pros and cons
- Where it wins
- Simultaneous editing with shared cursors and inline comments
- Compiles LaTeX projects to PDF on LetX’s servers
- Built-in BibTeX and biblatex compilation with academic templates
- Where it doesn't
- Free plan limits compiles to 40 per day and builds to 2 minutes
- Full version history and GitHub import/export require Pro
- Pro starts at $18 per user monthly
LetX fact sheet, pricing and score →
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