Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Frevo is probably the simplest tool for evolutionary design
A library to aid the transition from PGplot to PLplot in Fortran
java library for XML, HTML, or SVG generation + bioinformatics classes
Free Lock Manager
Python functions for trading
SIMD-accelerated libjpeg-compatible JPEG codec library
Ada Library for heterogenous vectors
embedded NFC
C library for sending e-mail (with attachments) from C/C++
Read and write Gwyddion GWY files
Perl Lib Math Notation
NMEA 0183 library for Java
Simple and complete bignum/rational C library with wrappers for C++
Set of Java interfaces for geospatial applications
Single sided linked list (kind of lib with test-code, C, C++ and java)
Data parallel and stream parallel skeletons implemented in erlang.
Random Variate generators for various distributions.
JSON Parser written in C that outputs JSON into D-List list objects
An extensive list subsystem, written in C
Library Advanced Financial Mathematics GCC (C++)
Java wrapper for 7z archiver engine
Nesting SDK, Library
pixelmed improved