Paper co-authors usually trade .tex files by email or pay for a hosted editor seat by seat; Aldine replaces both with a self-hosted LaTeX workspace where the whole team types in one document at once and sees a typeset PDF seconds later. Live cursors and presence show who is editing which paragraph, and the underlying sync is conflict-free, so two authors can rewrite the same section without overwriting each other. Every project is a real git repository: branch a draft, edit it independently, and merge it back from the interface when the argument holds together. Connect GitHub, GitLab, Gitea, or Forgejo to push and pull without leaving the editor, watch ahead and behind indicators, resolve conflicts, and open a pull or merge request on the merged result. Moving in is painless, since an exported Overleaf project ZIP dropped on the home screen imports with its root file detected and its first typeset automatic. Citations come from your own Zotero library or a single collection, kept in sync as a .bib file and inserted from a search panel or \cite autocomplete. Reviewers select text and leave anchored, threaded comments, optionally with a suggested replacement the author accepts in one click. Compiles run in a sandboxed container with no network access, warm recompiles land in about two seconds, and errors jump to the offending line. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Emailed copies of the same document, each with a different filename and a different set of edits, are where collaborative writing goes to die. LibrePaper keeps one living document in the browser instead: start a project in HTML, Markdown, Typst, LaTeX, or Quarto, or upload an existing one, and the editor renders the compiled result beside the source as you type. Readers highlight the exact passage they mean and comment on it, suggested edits land as tracked changes, and threads resolve on the text in real time. Finished work publishes to its own separate host, so scripts and interactive figures inside a document can never reach a reader's sign-in session. Nobody manages another password: sign-in runs through GitHub, Google, Microsoft Entra ID, ORCID, or any OpenID Connect provider, per-provider lists decide who may publish and who may only comment, and anonymous comments can be switched on for outside reviewers. Every project exports as a complete, independent copy from the command line, which also administers the deployment and can serve a document's tools to an AI agent over MCP. Operators get graphs, account management, and moderation, with per-account storage quotas, upload limits, and retention rules keeping a public instance under control. Four Docker containers behind Caddy with automatic HTTPS, one configuration file, and nightly backups of database and files complete the deployment. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Multiple authors can edit the same LaTeX document simultaneously in the browser with live cursor tracking, conflict-free merging, and instant PDF compilation on every save. Overleaf Community Edition brings the collaborative editing experience that millions of researchers and academics rely on, with no compile time limits, storage quotas, or collaborator caps imposed by the hosted tiers. The web editor provides syntax highlighting, auto-completion, and bracket matching alongside an integrated PDF preview panel powered by a bundled TeX Live distribution supporting pdfLaTeX, XeLaTeX, and LuaLaTeX engines. The file tree panel organizes multi-file projects with separate files for chapters, figures, bibliography references, and style definitions. BibTeX and Biber handle bibliography management, and detailed compilation logs offer clickable error navigation to the exact source line causing each issue. Users upload images, PDFs, and data files directly through the browser, and a template gallery provides starting points for journal articles, conference papers, theses, presentations, and CVs. Over 17,800 GitHub stars and a decade of active development anchor the project. The application runs as containerized microservices including the Node.js web application, MongoDB for persistence, and Redis for session management. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

In TeXlyre, two coauthors edit the same LaTeX or Typst file at once, and the PDF compiles inside the browser tab instead of on someone else's server. Start from a template: arXiv preprint, IEEE paper, Tufte book, Beamer deck. pdfTeX, XeTeX, and LuaTeX compile with BibTeX and Biber. Errors turn into readable cards that jump to the failing line. Live cursors show who is typing where. A shared link brings coauthors in, no accounts needed. Chat sits beside the editor, and comments can be discussed and resolved. Tracked insertions and deletions land in a review panel to accept or reject. Draw.io and TikZ editors open inside the project for shared diagrams. MathLive edits a formula under the cursor with a virtual keyboard. A bibliography panel tidies BibTeX, matches DOIs, and imports from Zotero and OpenAlex. Large files travel straight from one collaborator's browser to another. Projects export as ZIP, sync to a local folder, or back up to GitHub, GitLab, Gitea, and Codeberg. Vim, Emacs, and Helix keybindings are one setting away. The app installs as a progressive web app and works offline. Language servers like LTeX LS Plus, Harper, and Tinymist plug in through recipes beside your own signaling and TeX Live package servers. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.