Caire : Caire is a content aware image resize library
howdoi : Instant coding answers via the command line.
stup : A CLI tool to easily save, access and organize daily notes, especially for daily standup meeting.
Litmus : Test and track your emails. Email previews, analytics and spam filter testing.
how2 : stackoverflow from the terminal.
how2 finds the simplest way to do something in a unix shell. It's like man, but you can query it in natural language.
tmpmail is a command line utility written in POSIX sh that allows you to create a temporary email address and receive emails to the temporary email address. It uses 1secmail's API to receive emails.