LetX
Write LaTeX together. The AI runs the build.
LetX launched on September 8, 2026 with 8 votes, #302 of 5,318 launches that month and more than 90% of that year's launches.
What it does
Most AI tools hand you LaTeX and leave you to paste it somewhere and hope it builds. Lexi works inside the project: it creates and edits files, builds tables and TikZ diagrams, fixes your bibliography, compiles, reads the real latexmk log, and fixes what it reported. Every edit snapshots first, so it can be reverted. Connect Claude or ChatGPT over MCP and they get the same project: 1,019 templates, create, edit, compile. Unlimited collaborators on every plan. Overleaf's free tier allows one.
The best free Overleaf alternative. Write, edit, and compile LaTeX in the browser with unlimited collaborators. No installation required.
LetX is a free online collaborative LaTeX editor for student teams. Compile in seconds, work together in real time, and keep your unpublished work private. \documentclass {article} \usepackage {amsmath} \begin {document} \begin {align*} e^ {i\pi} + 1 &= 0 \\[1ex] \int _ {0} ^ {\infty} e^ {-x^2} dx &= \frac {\sqrt{\pi} } {2} \end {align*} \end {document} A real editing session Invite your team, edit together in real time, and compile to PDF in seconds, exactly how LetX works. Abstract — We present a framework that detects faint exoplanets in JWST/MIRI coronagraph imagery using contrastive and few-shot learning, separating planetary signals from bright host stars under low signal-to-noise. On…from letx.app
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