Elasticnote

Elasticnote is a privacy-first web app for taking unlimited notes, designed for anyone who values research, control, and privacy in their workflow. You can store your notes locally, edit them with your favorite apps, or sync them using your own cloud storage like Dropbox, Google Drive, OneDrive, or a GitHub repository.

Elasticnote features a Notion-style editor, supports Markdown and LaTeX, and includes advanced tools like AI, version control, Kanban boards, and diagrams, making note-taking powerful, portable, and enjoyable. It is available on web, Windows, Linux, and as browser extensions.