Org-mode vs TagSpaces

Org-mode is characterized by a flexible and versatile system with adaptability to different workflows, making it comparable as an Evernote alternative. It is at once simple and complex., which helps it to compete as an Evernote alternative.

Org-mode has some built-in agenda functionality. You can schedule tasks and assign various degrees of importance to each of them. Org-mode agenda can also be synced with Google Calendar.

Org files are plain text, and lend themselves well to version control. Emacs also has good integrations for various VCS.

Notes and to-dos can be synced with Trello, Toodledo, Simplenote, Orgmobile, or with tools like Git on Github, Dropbox, Google Drive, and Bitbucket, while WebDAV (with iOS and Android) can also be exported to PDF, mind map, LaTeX, HTML, Docbook, or txt.

Org-mode has some basic spreadsheet functionality. Other than auto-formatting ASCII tables (a notoriously annoying problem), it also has support for LISP-like syntax to define equations or any other functionality that can be achieved through spreadsheets.

Org-mode has out-of-the-box support for Latex: it can immediately parse equations (or other Latex markup) and can even compile notes to PDF or HTML.

TagSpaces is free and open source making it easily extendable with the help of extensions.

Using only files and no databases let's you make the decision with which cloud file sync service to use, making sure your notes are made available on other devices and platforms. It works great with Owncloud, Nextcloud, Dropbox or Google Drive.

The backend is simply the directory and file structure on your harddrive.

TagSpaces is running completely offline, sending no data to any cloud based service, unlike many Evernote alternatives.