BBEdit - it truly doesn't suck. Supremely scriptable and stable.

Pinboard - amazingly good bookmarking.

Pathfinder - the Finder is better than it used to be, but still no match.

Soulver - the notepad calculator.

Fiddler proxy - I use Charles on the Mac, but miss Fiddler.

Omni Outliner - superb outliner.

Arq - awesome backup software.

jq - never work with json without it.

iTerm2 - so good

httpie - does what I mean.

Audio Hijack - record anything.