GitHub Package Registry - Your packages, at home with their code
Iteration X - Iteration X allows teams to annotate and edit any live website or web app directly in Chrome.
Slowbug - Debug you code in slow-mo!
Brevy (beta) - Give feedback, Google-doc style, directly on your website
Buglife - Seriously awesome bug reporting for iOS apps
Flycode - FlyCode (YC S22) makes web apps editable without coding so companies can iterate and release products faster - helping teams edit copy, images, and links in the code so their developers don’t have to.