SpatiaLite is a library intended to extend the SQLite core to support fully fledged Spatial SQL capabilities.

This is a very simplistic parser for string values according to the OSM opening hours specification.

VirtualPG is a dynamic extension for the SQLite DBMS. It implements the VirtualPostgres driver, allowing to directly exchange data between SQLite and PostgreSQL; if SpatiaLite is available even PostGIS geometries can be exchanged form one Spatial DBMS and the other.

Mapnik is a toolkit for developing mapping applications. It is basically a collection of geographic objects like maps, layers, datasources, features, and geometries. At its core is a C++ shared library providing algorithms and patterns for spatial data access and visualization. The library does not rely on any specific windowing system and can be deployed to any server environment. It is intended to play fair in a multi-threaded environment and is aimed primarily, but not exclusively, at web-based development.

GMT is a collection of about 100 command-line tools for manipulating geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and producing high-quality illustrations ranging from simple x-y plots via contour maps to artificially illuminated surfaces, 3D perspective views and animations. The GMT supplements add another 50 more specialized and discipline-specific tools. GMT supports over 30 map projections and transformations and requires support data such as GSHHG coastlines, rivers, and political boundaries and optionally DCW country polygons.

CDO is a collection of command-line operators to manipulate and analyse climate and NWP model data. Supported data formats are GRIB 1/2, netCDF 3/4, SERVICE, EXTRA and IEG. There are more than 600 operators available.

OpenGeoSys (OGS) is a scientific open source project for the development of numerical methods for the simulation of thermo-hydro-mechanical-chemical (THMC) processes in porous and fractured media. OGS is implemented in C++, it is object-oriented with an focus on the numerical solution of coupled multi-field problems (multi-physics). Parallel versions of OGS are available relying on both MPI and OpenMP concepts. Application areas of OGS are currently CO2 sequestration, geothermal energy, water resources management, hydrology and waste deposition.

QGIS is an easy to use Geographical Information System (GIS). It is a GIS data viewer and editor. QGIS supports a number of raster and vector data formats, with new support easily added using the plugin architecture.

GNU Gettext is a package providing a framework for translating the textual output of programs into multiple languages. It provides translators with the means to create message catalogs, and a runtime library to load translated messages from the catalogs. Nearly all GNU packages use Gettext.

The po4a (PO for anything) project goal is to ease translations (and more interestingly, the maintenance of translations) using gettext tools on areas where they were not expected like documentation.

GNU Gettext is a package providing a framework for translating the textual output of programs into multiple languages. It provides translators with the means to create message catalogs, and a runtime library to load translated messages from the catalogs. Nearly all GNU packages use Gettext.

GNU Gettext is a package providing a framework for translating the textual output of programs into multiple languages. It provides translators with the means to create message catalogs, and a runtime library to load translated messages from the catalogs. Nearly all GNU packages use Gettext.

The po4a (PO for anything) project goal is to ease translations (and more interestingly, the maintenance of translations) using gettext tools on areas where they were not expected like documentation.

The mdpo utility creates pofiles, the format stabilished by GNU Gettext, from Markdown files.

GNU libtextstyle is a C library that provides an easy way to add styling to programs that produce output to a console or terminal emulator window. It allows applications to emit text annotated with styling information, such as color, font attributes (weight, posture), or underlining.

Ghostscript fonts provides fonts and font metrics customarily distributed with Ghostscript. It currently includes the 35 standard PostScript fonts.

libspectre is a small library for rendering Postscript documents. It provides a convenient easy to use API for handling and rendering Postscript documents.

Ghostscript is an interpreter for the PostScript language and the PDF file format. It also includes a C library that implements the graphics capabilities of the PostScript language. It supports a wide variety of output file formats and printers.

The paper library and accompanying files are intended to provide a simple way for applications to take actions based on a system- or user-specified paper size.

Little CMS is a small-footprint colour management engine, with special focus on accuracy and performance. It uses the International Color Consortium standard (ICC), approved as ISO 15076-1.

Little CMS is a small-footprint colour management engine, with special focus on accuracy and performance. It uses the International Color Consortium standard (ICC), approved as ISO 15076-1.

PSUtils is a collection of utilities for manipulating PostScript documents. Programs included are psnup, for placing out several logical pages on a single sheet of paper, psselect, for selecting pages from a document, pstops, for general imposition, psbook, for signature generation for booklet printing, and psresize, for adjusting page sizes.

Ghostscript is an interpreter for the PostScript language and the PDF file format. It also includes a C library that implements the graphics capabilities of the PostScript language. It supports a wide variety of output file formats and printers.

Ghostscript fonts provides fonts and font metrics customarily distributed with Ghostscript. It currently includes the 35 standard PostScript fonts.