Escape Utils atom package

This package that takes care of your encoding (escaping) needs: url, base64, html and soon: json, js, sql, xml, sgml
It support multi line selection, and it is well unit tested.
Key bindings
shift-cmd-e shift-cmd-uto URL encode selected text.shift-cmd-e cmd-uto URL decode selected text.shift-cmd-e shift-cmd-bto encode selected text using Base64.shift-cmd-e cmd-bto decode selected text using Base64.shift-cmd-e shift-cmd-hto escape HTML entites.shift-cmd-e cmd-hto unescape HTML entities.