Fzf

Amazing command line tool to fuzzy search for files. Cannot live without this. Also integrates with vim.

https://github.com/junegunn/fzf

Jq

Swiss army knife for working with JSON on the command line

https://github.com/stedolan/jq

Pup

Like Jq, but for HTML

https://github.com/ericchiang/pup

Silversearcher

Like grep, but better

https://github.com/ggreer/the_silver_searcher