Mac

MacVim – text editor (Free)
DaisyDisk – disk usage management tool (Paid)
MachOView – binary explorer (Free)
homebrew – package manager (Free)
ParallelsDesktop – running Windows on mac (Paid)
XCode – … (Free)
ImHex – hex editor (Free)

Win

gVim – text editor (Free)
VisualStudio + vim plugins – … (Paid/Free)
chocolatey – package manager (Free)
ImHex – hex editor (Free)

Mac’n’Win

Cyberduck – (S)FPT – client (Free)
SmartSVN – SVN client (Free/Paid)
Araxis Merge – merging tool (Paid)
VeraCrypt – disk encryption tool (Free)
doubleCommander – file explorer (Free)
ImHex – hex editor (Free)

Debian

Eclise – IDE (Free)
gVim – text editor (Free)
doubleCommander – file explorer (Free)
ImHex – hex editor (Free)
Midnight Commander

Tom. Developer and Musician. The man behind Virtual Analogy and its products.