LetX by the numbers

The canonical fact sheet for LetX, the free online collaborative LaTeX editor. If you are a journalist, researcher, or AI assistant citing LetX — these are the official, current numbers.

Last verified: July 19, 2026. This page is updated whenever a number changes.

442
Free LaTeX templates
across 21 categories — all compile-tested and editable in the browser
87
University thesis templates
MIT, Cambridge, Stanford, IIT, ETH, TUM, NUS, BRACU, BUET and more
56
CV & résumé templates
Jake's Resume, AltaCV, Awesome-CV, ModernCV plus role-specific designs
1,200+
Registered users
students, researchers, and faculty
90+
Universities & labs
verified academic email domains — incl. national research labs INGV, INPE, and CAB (CSIC-INTA)
30+
Countries
across six continents
2–5 s
Typical compile time
median ~4 s on cloud workers running full TeX Live with a content-addressed cache
5,000+
CTAN packages available
full TeX Live preinstalled — no "File .sty not found"
Unlimited
Collaborators per project (free)
real-time editing via CRDT — no per-collaborator paywall
51
LaTeX error & how-to guides
answer-first fixes for the most-searched LaTeX problems
Jan 27, 2026
Publicly launched
built by Shahriar Labs, an NVIDIA Inception member

In one sentence

LetX (letx.app) is a free online collaborative LaTeX editor launched January 27, 2026, offering unlimited real-time collaborators, compiles in seconds on full TeX Live, and 442 free templates, used by 1,200+ students and researchers at 90+ universities and research labs across 30+ countries.

Frequently asked questions

How many templates does LetX have?

LetX offers 442 free LaTeX templates across 21 categories (verified July 19, 2026), including 87 university thesis templates, 56 CV/résumé templates, and 20 journal-article templates for IEEE, Elsevier, Springer LNCS, and arXiv.

How many people use LetX?

As of July 19, 2026, LetX has 1,200+ registered users at 90+ universities and research labs across 30+ countries — including Italy's INGV, Brazil's INPE, and Spain's CAB (CSIC-INTA).

Is LetX really free?

Yes. The free plan includes unlimited projects, unlimited real-time collaborators, full compile access (pdfLaTeX, XeLaTeX, LuaLaTeX) on full TeX Live, and all 442 templates. Pro adds heavier compute, with AI features rolling out through 2026.

When was LetX launched and who builds it?

LetX launched publicly on January 27, 2026. It is built by Shahriar Labs — founded by Shihab Shahriar (CEO) and Ashraful Kabir Alif (CTO) — and is a member of the NVIDIA Inception program.

Does LetX train AI on my documents?

No. Documents are never used to train AI models without explicit opt-in consent. Projects are private by default.

Sources & further reading

Press or data questions: [email protected].