GNUstep

Open source widget toolkit and application development tools GNUstepWindow Maker and a variety of applications were developed with the GNUstep libraries, including a gomoku game, calculator, and TextEdit.DeveloperGNUstep DevelopersStable releasemake 2.9.3, base 1.31.1, gui 0.32.0, back 0.32.0 / February 28, 2025; 19 months ago (2025-02-28)Preview releaseon the GitHub software repository Written inObjective-COperating systemCross-platformTypeWidget toolkitLicenseGNU General Public License for the applications GNU Lesser General Public License for the libraries.Websitewww.gnustep.orgRepositorygithub.com/gnustep GNUstep is a free software implementation of the Cocoa (formerly OpenStep) Objective-C frameworks, widget toolkit, and application development tools for Unix-like operating systems and Microsoft Windows. It is part of the GNU Project. GNUstep features a cross-platform, object-oriented IDE. Apart from the default Objective-C interface, GNUstep also has bindings for Java, Ruby, GNU Guile and Scheme. The GNUstep developers track some additions to Apple's Cocoa to remain compatible. The roots of the GNUstep application interface are the same as the roots of Cocoa: NeXTSTEP and Ope