Ask HN: What software has improved your life the most?

well I guess we have to exclude the staples, right? operating systems, infrastructure, messengers, browsers, navi apps.

I love:

org-mode

autohotkey (windows)

firefox add-ons and userscripts

an alternative keyboard layout (and QMK for a hardware implementation)

kodi

calibre

sumatra pdf

well and including historically: I learned programming through macromedia flash

Anki. Spaced repetition + testing effect made learning (math, in my case) much better and more efficient.

Okcupid - although recent dating apps are apparently more challenging, at least for a time dating sites helped nerdy people find each other, and have those awkward 'do you want to date me' conversations in a safe way.

Word processing software. I remember my first job as a lowly admin assistant in the Civil Service where my job was to manage with the team's post, file lots of pieces of paper, and deal with the Divisional Typing Pool ruled by the fearsome and never-to-be-forgotten Mrs Kagan. Word processors not only changed the office organisation structure forever, it saved me from having to approach Mrs Kagan to ask for a letter to be retyped because my boss wanted to add a couple of words "just here, and here - today if possible ... please?".