Epublib is a Java library for managing epub files. It is capable of reading and writing epub files programmatically and from the command-line tool. Epublib consists of two parts: the core and tools. The core runs both on Android and a standard JVM. Tools require a standard Java environment. Other features include a builtin Swing-based viewer and comprehensive coverage of the epub standard, supporting the spine, the table of contents, and the guide. The API is designed to be as simple as possible, while at the same time making complex things possible too.
fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues for Java with a small memory footprint and fast access and insertion. It also provides big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.
flexi cart is a shopping cart library for CodeIgniter. While CodeIgniter comes with its own cart library, the library is quite basic in functionality and is only aimed at creating simple e-commerce stores. The flexi cart library includes the following features: shipping, taxes, localisation, discounts and reward points/vouchers, multiple currencies, item stock control, surcharges, saving/loading of incomplete carts for later shopping, multilingual custom status and error messages, and currency and weight conversion tools.