POLAR is a powerful offline browser for Mac, Windows, and Linux for managing all your web content, books, and notes. Polar keeps all your content in one place, supports tagging, annotation, highlighting and keeps track of your reading progress. POLAR allows you to keep all your documents, annotations, and flashcards in once place.
Taking my reading offline, bookmarks in web content, having a list of articles I've read, annotation, and Anki integrationCons:
UI can be difficult to figure out, exporting Anki cards took me two tries and ~5 minutes to locate the button
This software has become essential to my online readingJonathan Hawley-Peters has used this product for one month.