11. 7zip.
– MOS95b
12. Calibre. Best ebook collection and management software there is, nothing else can touch it paid or free.
– Fearless767
13. Git.
– Quelags_Revenge
14. OBS studio. The amount of power it has, and the number of people who built their careers off of it…absolutely insane that we have this now.
– sgtyummy
15. The draw.io is better than every paid diagramming/flowchart tool I’ve ever used.
– danielsboard
16. GIMP.
– MSP10
17. The entire Python ecosystem. The breadth of the capabilities of community-supported libraries is simply amazing.
– itzukua
18. Irfanview.
– read-at-own-risk
19. Zotero for in-text citations and making a reference list. Saved me in university!
– basicfrenchifri
20. Anything made by NirSoft or Sysinternals.
– distonjkummer