Project · open source

Feuillet

A collaborative online LaTeX editor in the spirit of Overleaf, connected to GitHub. Several people write in the same document, comment and track changes, and the project compiles with TeX Live.

Open Feuillet Source code on GitHub

Free · in the browser, nothing to install · French or English interface · no tracking, no advertising · user guide

The Feuillet editor: the project files on the left, the LaTeX code of a paper in the middle (a definition, then the Bolzano–Weierstrass theorem), the compiled PDF on the right.
The “Academic journal” template, compiled with TeX Live: the code in the middle, the PDF on the right. The Code and Visual buttons switch between the two editors.

What Feuillet does

Writing together

Collaborators write in the same text at the same time and see each other's cursors. The server keeps the project: nobody needs to be online at the same time.

Sharing

Invitations by account name or by email, with three roles: edit, review or read. Share links open the project too, and the owner can replace them.

Review

Comments and tracked changes, as in Overleaf: accept or reject from the text or from the panel. The server holds reviewers to comments and tracked changes.

Versions

Saved automatically, with their authors. Label a version (“Submitted”), compare any two, restore a file or the whole project.

TeX Live

Compiling runs on the server with pdfLaTeX, XeLaTeX or LuaLaTeX, with SyncTeX between the code and the PDF and explanations of common errors.

GitHub and Git

Link a project to a repository, push and pull with merging, publish a release with its PDF (and a DOI through Zenodo). A project can also be cloned with Git; GitLab, Gitea and Forgejo work the same way.

Claude

A connector lets Claude, under your own subscription, read, search, compile, comment and suggest changes, which arrive as tracked changes under its name.

Visual editor

Headings, lists, formulas, figures and tables look as they do in the document, with toolbars for figures and tables. The spell checker knows French and English.

LaTeX and Typst

From TeXlyre, Feuillet keeps Typst, the bibliography tools for Zotero and OpenAlex, draw.io and TikZ diagrams, the MathLive formula editor and Vim or Emacs keybindings.

Getting started

  1. Open feuillet.slashbin.net and choose Sign up: a name, a password and, if you wish, an email address. You can also sign in with Google or ORCID, or Try as Guest, without an account: projects then stay in the browser, for 24 hours.
  2. New project offers templates: paper, book, letter, homework, poster, presentation, report, thesis, CV. Import starts from a .zip archive (a project downloaded from Overleaf, for instance), a GitHub, GitLab, Gitea or Forgejo repository, or a web address.
  3. Share, at the top of the editor, invites your collaborators.

The user guide covers the rest: collaborating, review, versions, GitHub, Git, Claude, your account.

Open in Feuillet

Like “Open in Overleaf”, a link creates a project in Feuillet from files or LaTeX code. The address https://feuillet.slashbin.net/docs takes the same fields as Overleaf's (snip_uri, snip, engine…): replacing one with the other is enough. In the README of a public repository, this badge opens a copy of the repository:

Open in Feuillet

[![Open in Feuillet](https://feuillet.slashbin.net/badges/open-in-feuillet.svg)](https://feuillet.slashbin.net/docs?snip_uri=https://github.com/OWNER/REPO/archive/HEAD.zip)

Replace OWNER/REPO with the repository. Feuillet shows the files and where they come from, and creates the project only when asked.

With Claude

In Claude, on the web or in the desktop app, add a custom connector with this address, then sign in with your Feuillet account:

https://feuillet.slashbin.net/collab/mcp

In Claude Code:

claude mcp add --transport http feuillet https://feuillet.slashbin.net/collab/mcp

Claude acts according to your role in each project: a reviewer leaves it only comments and suggestions. In the editor, the Ask Claude button prepares a request about the selected passage: improve the style, fix the spelling, translate, compile and fix the errors.

Privacy

Projects are kept in the browser and on the Feuillet server, for your other devices and your collaborators. Feuillet has no visit statistics, no advertising and no tracking cookies. GitHub tokens are encrypted and kept in the browser, not on the server. A project deleted for good, or a deleted account, is erased from the server; the nightly backups keep what was erased for two weeks at most. The Privacy link, at the bottom of Feuillet's pages, lists what the server keeps and the other services involved.

Under the hood

Feuillet is a fork of TeXlyre, a LaTeX and Typst editor that runs entirely in the browser. It keeps TeXlyre's editor, written in TypeScript with React and CodeMirror, and adds a server: documents are Yjs documents (CRDTs) relayed over WebSocket and stored on the server, instead of peer-to-peer connections, and compiling runs TeX Live in Docker. Apache serves the app and proxies both servers.

TeXlyre is funded by NLnet through the NGI0 Commons Fund, supported by the European Commission's Next Generation Internet programme.

License

Feuillet, like TeXlyre, is under the GNU AGPL 3.0 license. The user guide is in English and in French; questions and bug reports go to the GitHub issues.