In addition to the code found here, I have more Public Domain code on my personal homepage.

Most of the code is redundant to already available Open Source or Free software, but because it is public domain there are absolutely no legal (or ethical!) issues to worry about in using the code. Additionally, each library has no dependencies on any other library (except the C standard library), and is contained in only one file (either the entire library is a header file, or else you can trivially cut-and-paste the header file from the source file), to simplify distribution and reuse.