TeXbrain, a LaTeX editor that runs pdfTeX in the browser via WASM

In plain words

TeXbrain is a free, open-source LaTeX editor that runs entirely in the browser without requiring accounts, installations, or servers. It compiles .tex files to PDF directly using pdfTeX compiled to WebAssembly, allowing users to write and preview documents by simply opening a tab. The editor integrates with local project folders through the File System Access API, enabling seamless git integration and compatibility with other tools. Built for LaTeX users who want straightforward document creation without subscription paywalls or complex setups.

written from the facts on this page · September 2026

From the sources

FOSS browser-based LaTeX editor with live preview, on-demand packages and git integration. No accounts, no installs, no servers. - swimmingbrain/texbrain

In the maker’s words, at launch

I'm a master's engineering student and a big fan of LaTeX, which I used for my thesis and research articles. I have used Overleaf and that was fine until I wanted to git sync, which unfortunately sits behind a paywall. Since I didn't want to pay subscriptions for things that should simply just work, I built the…

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