LibrePaper – A free platform to read, write, and review together

LibrePaper launched as a free, open-source platform for reading, writing and reviewing documents together, with live preview for Markdown, HTML, Typst and LaTeX, computational notebooks via Quarto and Calepin, and BibTeX and Zotero bibliography support. The public host at librepaper.org caps storage at 50 MB per user and 30 uploads per hour, while self-hosting requires one binary and a Postgres DB. LibrePaper supports AI agents through MCP with reader, commenter or editor permissions, and states it does not need users' keys or tokens.

A free platform to read, write, and review together. HTML LaTeX Typst Markdown Quarto Calepin Write - Live preview renders Markdown, HTML, Typst and LaTeX. - Computational notebooks include Quarto and Calepin. - Authoring includes templates, tools, and multi-file projects. - Bibliographies work with BibTeX and Zotero. - Track changes lets you accept or reject each edit. Free - Everything is free . No feature is gated. - Open source covers the server, reader and renderers. - Public host at librepaper.org allows only 50 MB of storage per user and 30 uploads per hour. - Self-host needs one binary and a Postgres DB. - Export saves projects and comments as ordinary files. People - Simultaneous editors get named carets and personal undo. - Annotate adds highlights and threaded comments. - Share with readers, commenters or editors. - Chat works with collaborators and AI agents. - History is granular and infinite. Agents - Bring your own agent needs no new subscription. - Chat interface lets you ask for changes in the sidebar. - Pre-specified tasks : pick one with a passage selected - Permissions are reader, commenter, or editor. - Private : LibrePaper doesn't need your keys or tokens - MCP works with any commercial model or local weights.