One of the most prevalent forms of internet memes is the image macro.  An Image Macro is a broad term used to describe captioned images that typically consist of a picture and a witty message or a catchphrase.  Click here to read more about image macros.

This meme was created using the Imgur Meme Generator.

Canva is another free and easy tool for creating graphics.  This was created using the "Sidebar Quote Twitter Post" layout.

Keep Calm-O-Matic creates endless "Keep Calm and..." slogans.

Pulp-O-Mizer is a customizable pulp cover generator.