Ilib
- A library (and some tools and examples) written in C that can read, create, manipulate and save images. It is capable of using X11 BDF fonts for drawing text. It can read and write PPM, XPM, GIF, PNG and JPG image format. There is a Perl module included
- http://www.k5n.us/Ilib.php

Sprite Pack
- A C sprite library for the Z88DK cross compiler.
- http://www.timexsinclair.org/alvin/#SP

GraphiC
- A library of routines that enable you to embed high quality graphics in your programs.
- http://www.sciend.com/

SVGAlib
- A low-level graphics library for Linux. It augments the C programming language, which doesn't provide support for graphics.
- http://www.svgalib.org/