Far from just being that character in Pulp Fiction, GIMP is also an open-source alternative to Photoshop that’s given away freely for all to use.
Unfortunately, there’s been a kerfuffle between the project’s creators and SourceForge, one of the places that the software is available to download. The latter stands accused of adding for-profit adware to its version of GIMP, which is a big no-no amongst the free and open-source software community.