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

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Why This Matters

TeXbrain is a browser-based, open-source LaTeX editor that compiles documents directly in the browser using WebAssembly, eliminating the need for installations or server reliance. It offers a seamless, privacy-focused experience for users to write, compile, and manage LaTeX projects with integrated GitHub support. This innovation simplifies LaTeX editing, making it more accessible and convenient for students, researchers, and professionals.

Key Takeaways

TeXbrain

A free, open-source LaTeX editor that runs entirely in your browser.

No accounts. No installs. No servers. Just open a tab and write.

Try it now → tex.swimmingbrain.dev

I built this because I was tired of paying for features that should be free. I wrote my thesis last year in LaTeX and spent more time fighting tooling than actually writing. Online solutions lock git sync behind a paywall. Local setups break between machines. I wanted something that just works. Open a browser, write LaTeX, get a PDF.

So I built it.

What it does

texbrain is a full LaTeX editor that compiles your .tex files to PDF directly in the browser. There is no backend. No server processing your files. Everything (the editor, the compiler, the git client) runs client-side.

You can open a local project folder, edit your files, see the PDF update, commit your changes, and push to GitHub. All from one tab.

Features

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