Zette - Unlock the articles that pique your curiosity

Hacker News Front Page Explorer - A database of top ranking Hacker News front page posts

Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.

Hacker News-cli - Browse Hacker News from your Terminal

OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.

Box Piper Hacker News - Re-Imagined Hacker News for this decade.