Lightweight, portable and easy to integrate C directory and file reader,

FSP - File Service Protocol. FSP is lightweight UDP based protocol for transferring files. It is designed for anonymous transfers over unreliable networks.

this is just practice using nHibernate and homegrown MVC to develop a light-weight framework.

Developing DMS for home and small business users.
Bind`n`find - is your best way to organize, scan, store and search for your documents. You'll no longer loose your bills or grandma x-mas card in a heap of assorted papers.
It's developed in C#/.NET 3.5....

Audiopreview is a command-line tool that play previews of many audio files (ogg, mp3, ...), video files (avi, mpg, rm, ...) and also internet streams (internet radio stations, video streams, ...).

It can also be used as a regular media player (ie: play the files entirely like yauap or mpc123 would do)....

fpgatools is a toolchain to program flexible programmable gate arrays (FPGAs). the only supported chip at this time is the xc6slx9, a cheap (ca. 10 USD) but powerful 45nm-generation chip with about 2400 LUTs, block ram and multiply-accumulate devices. the principles of fpgatools are: 1. reach the maximum physical performance of the chip. 2. fast development cycles. 3. independent toolchain that only depends on other free software. 4. lightweight C implementation without GUI. 5. supported platform: Linux. 6. license: public domain...

C library for Patricia trie storage. The library provides an API to create and use dynamic compact Patricia tries for arbitrary data. Keys may be of variable length. Data may be stored and retrieved by reference only. Supports in-order retrieval and best-match prefix searches with foreach closure semantics. Requires C99, no dependencies, platform independent. Work in progress. BSD style license....

The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types, such as logic analyzers, MSOs, oscilloscopes, multimeters, LCR meters, sound level meters, thermometers, anemometers, light meters, dataloggers, function generators, power supplies, GPIB interfaces, and more....

a profiling and trace analysis tool - see the website for downloads and additional information

Command line parameters parser with callback correspond functions and, if necessary, type/semantic checking of values of inputed parameters.
Uses ISO C++ and Boost C++ libraries only.
Header-only (not need to build) and cross-platform.
It's really simple to use!...