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📄 Online LaTeX Editor

Write LaTeX and see the PDF update as you stop typing. The TeX engine runs as WebAssembly inside your browser, so there is no compile queue, no upload and no account.

What it does

Compiles in your browser

A full XeLaTeX engine runs as WebAssembly on your own machine. No server queue, no compile-time cap, and your document never leaves the computer.

Recompiles as you write

Stop typing for a moment and the PDF rebuilds itself, keeping your scroll position instead of throwing you back to page one.

Jumps to the failing line

When a build fails, the line number is pulled out of the TeX log and turned into a button — click it and the cursor lands on the offending line.

Real projects, not just one file

Import an Overleaf export as a .zip — sections, .bib, .cls and figures included. Files are edited from a tree and the whole project is saved in your browser.

How to use it

Open the editor
Nothing to install and no account to create. A starter document is already loaded.
Write, or import a project
Type directly, or open a .zip exported from Overleaf — the wrapper folder is stripped and the main file is detected for you. Nothing leaves the browser.
Watch the PDF rebuild
Auto-compile is on by default; pause for a second and the preview refreshes. Turn it off and drive it with the Compile button instead.
Fix errors from the log
On a failure the log opens and the failing line is offered as a shortcut. The last good PDF stays on screen so you keep your bearings.
Download the results
Grab the compiled PDF, or save the whole project back out as a .zip.

Frequently asked questions

Is this LaTeX editor really free?

Yes. Compilation happens in your browser, so it costs us nothing per document and there is no cap on compiles or document length.

Is it an Overleaf alternative?

For writing and compiling, yes — multi-file projects included, and without a compile-time limit on the free tier. What it does not do is real-time multi-author collaboration.

Can I import my Overleaf project?

Yes. Download it from Overleaf as a .zip and open it here. The wrapper folder is stripped, the file with \documentclass becomes the main file, and figures and .bib files come across with it.

Does my document get uploaded?

No. Nothing is sent anywhere: the editor, the TeX engine and the PDF renderer all run in your browser, and the document is stored in your browser's local storage.

Which TeX engine does it use?

XeLaTeX, which handles UTF-8 and OpenType fonts natively — so a Chinese document using ctex compiles without extra configuration.

Can I compile a Chinese LaTeX document?

Yes. XeLaTeX plus the bundled CJK fonts means \usepackage{ctex} works out of the box.

Do figures work?

Yes — PNG, JPEG, PDF and EPS files in the project are embedded by \includegraphics the same way a local TeX installation would.

What happens to my work if I close the tab?

Projects are kept in browser storage and reload when you come back. Clearing site data or using private browsing will remove them, so download anything important.

Does auto-compile get in the way?

It waits until you stop typing, keeps the preview's scroll position, and leaves the last successful PDF on screen when a build fails. If you would still rather drive it yourself, untick Auto and use the Compile button.