When comparing Hyper-Text Markup Language (HTML) vs Org-mode, the Slant community recommends Hyper-Text Markup Language (HTML) for most people. In the question“What are the best markup languages?” Hyper-Text Markup Language (HTML) is ranked 2nd while Org-mode is ranked 4th.
Ranked in these QuestionsQuestion Ranking
Pro Most universal and widely used markup language
Pro Styling via CSS
Styling through CSS is declarative and powerful, but somewhat inadequate for print without expensive tools like Prince.
Pro Natively understood by browsers
Natively understood by browsers, you can author and view HTML on virtually every computer without any additional software.
HTML is fairly simple for both humans and machines. It can be repetitive and burdensome to type, but less so than most other XML or SGML-derived formats.
Pro Great sync support
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.
Pro Very flexible
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.
Pro Versioning can be tracked and synced using Git or other VCS
Org files are plain text, and lend themselves well to version control. Emacs also has good integrations for various VCS.
Pro Built-in agenda
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.
Pro Basic spreadsheet functionality
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.
Pro Out-of-the-box Latex support
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.
Tags can hide actual content.
Con Difficult to learn
Org-mode has a difficult learning curve since you have to learn all the keybindings and commands. It's especially difficult if you are not used to Emacs.