PopClip is an amazing app that lets you customize what happens when you select text in any application on your Mac. PopClip is far more than just a copy/paste tool. It lets you do limitless things with the text you have selected. There’s options to use PopClip to turn selected text into a todo or note in your favorite app, tweet or email it, add it to a calendar appointment, translate it, and much more. You can call phone numbers with Skype, send links to Instapaper or Pocket, run a terminal command, search tons of different sites, have your Mac speak text out loud, turn a typed out math problems into an answer or make your own extension that works just like you want.
PopClip comes with 109 free extensions to choose from. There are also custom extensions that you can plug in that other developers have created. Brett Terpstra has made developer PopClip extensions available on his website that are amazing. The great thing about PopClip is you get to decide how the app will behave with the extensions you choose. You can download a free trial of PopClip from their website or or pick it up in the Mac App Store for $4.99. This app is well worth the money for the time it will save you.