GtkAda
- An Ada95 graphical toolkit based on Gtk+, providing the complete set of Gtk+ widgets.
- https://libre.adacore.com/GtkAda/

The Ada95 Booch Components
- The (free) Ada95 Booch Components.
- http://booch95.sourceforge.net/

Unzip Ada
- A decompression library for .ZIP files without any compiler or operating system dependency.
- http://homepage.sunrise.ch/mysunrise/gdm/unzipada.htm

Gautier's 3D Engine
- Real-Time 3D engine and game library, fully in Ada 95.
- http://homepage.sunrise.ch/mysunrise/gdm/e3d.htm

AdaTCL
- Quite dated Ada-TCL bindings. Normally, you'll want to use TASH instead.
- http://serl.cs.colorado.edu/~arcadia/Software/adatcl.html

Adalog Components
- Ada packeges including Debug, OS_Services, Protection (a kind of evolved semaphore), Variable_String. Also tools and adapplets (Java applets writing in Ada)
- http://perso.orange.fr/adalog/compo2.htm

Templates Parser
- (GZ) Useful for web programming with the Ada Web Server, for example.
- http://perso.orange.fr/pascal.obry/archive/templates_parser-3.5.tar.gz

Adalog Debug
- A package provides a sophisticated trace facility, especially valuable for multi-tasking programs. The child package Debug.Timing also provides utilities for measuring execution time, and the child package Debug.Assert provides utilities for checking that
- http://perso.orange.fr/adalog/compo/debug.htm

Ada and Java Lexer
- by Christoph Karl Walter Grein with Ada sources.
- http://www.christ-usch-grein.homepage.t-online.de/Ada/Lexer.html

Ncurses Binding
- An Ada 95 binding to the Ncurses console library.
- http://www.delorie.com/gnu/docs/ncurses/Ada95.html

XIA (XPath in Ada)
- A native Ada implementation of the XPath 1.0 specification for XML DOM document querying. (Requires XMLAda from libre.adacore.com)
- http://www.mckae.com/xia.html

XInAda
- The Ada implementation of X11/Xt/Xm.
- http://www.topgraphx.com/version_am/fichier_prod_xinada.htm

Open Image
- A portable Ada 95 package hierarchy devoted to the Input/Output and manipulation of image (pictures) data. [GPL with same special exception as the GNAT run-time]
- http://open-image.sourceforge.net/

AdaSDL
- A set of Ada (programming language) bindings, ports, and some original applications based on SDL (Simple DirectMedia Library). [Open source, LGPL]
- http://sourceforge.net/projects/adasdl

GLADE for GNAT
- Providing an up to date implementations of Annex E (Distributed Systems) of the ISO standard ISO/IEC 8652:1995/COR1:2000 for GNAT. [Nothing to interface builder of the same name (GLADE)]
- http://gnat-glade.sourceforge.net/

Ada Semantic Interface Specification for GNAT
- Providing an up to date implementations of ASIS = Ada Semantic Interface Specification for GNAT. ASIS is a published international ISO standard (ISO/IEC 15291:1999).
- http://gnat-asis.sourceforge.net/

The Ada Library Projects
- Overview of Ada Library Projects at AdaWorld.
- http://www.adaworld.com/libsmain.html

OpenToken
- A series of Ada packages that allow simple creation of token analyzers (aka: lexical analyzers) in straight inline Ada code.
- http://www.telepath.com/~dennison/Ted/OpenToken/OpenToken.html

Libra
- A general library for Ada '95 under Unix-like operating systems. It currently provides some basic data structures. Also it provide abstractions for NNTP and SMTP commands.
- http://www.nongnu.org/libra/

AdaERL
- Interface letting call Erlang from Ada.
- http://www.rfc1149.net/devel/adaerl.html

AdaCL, Ada Class Library
- Textfile search and replace (as Library and demo programs) Trace support. Protected and Task Queues. [Open source, GPL]
- http://adacl.sourceforge.net/

AdaOpenGL
- An Ada binding to OpenGL. [Open source, BSD License]
- http://adaopengl.sourceforge.net/

Glut
- A window system independent toolkit for writing OpenGL programs.
- ftp://ftp.sgi.com/sgi/opengl/glut/index.html

Astrophysical software components
- Also Swing's Ada95 class library and an Ada95 interface to PGPLOT by Martin J. Stift.
- http://fedelma.astro.univie.ac.at/web/ada_pack95.html

ASL
- The Ada Structed Library is a collection of container and semaphore types.
- http://adasl.sourceforge.net/

ncurses
- GNU ncurses includes an Ada 95 binding.
- http://www.gnu.org/software/ncurses/ncurses.html

Ada Network Components
- Freely available components: AdaSockets, Eratho (alpha), PostgreSQL database binding (BSD license).
- http://www-inf.enst.fr/ANC/

AdaSockets
- BSD sockets binding for the Ada programming language. [Open source, modified GPL]
- http://www.rfc1149.net/devel/adasockets.html.en

Ada Components
- The page contains notes on work done on components for Ada.
- http://www.pogner.demon.co.uk/components/

Tat
- A thick Ada binding to the Tk windowing library.
- http://topo.math.u-psud.fr/~sands/Programs/Tat/

Lego Mindstorms
- Ada interface to Lego Mindstorms.
- http://www.faginfamily.net/barry/Papers/AdaLetters.htm

MPI
- An Ada 95 binding to the Message Passing Interface (MPI).
- http://www.ecs.soton.ac.uk/~kst/

Ngeadal
- An Ada library for Unicode.
- http://ngeadal.sourceforge.net/

Florist
- A POSIX Ada binding, including real-time extensions (this is the original page, download it where you download GNAT).
- http://www.cs.fsu.edu/~baker/florist.html

Tash
- An Ada binding to Tcl/Tk.
- http://www.adatcl.com/

The Big_Number Page
- Several high-precision mathematical packages.
- http://www.chez.com/bignumber/

pyAda
- An Ada 95 binding to the Python interpreter.
- http://pyada.sourceforge.net/

Guile
- Ada 95 bindings for the GUILE embeddable scheme interpreter.
- http://www.cs.utexas.edu/users/bdbryant/guile-for-ada/

BLAS
- An Ada 95 binding to the BLAS Fortran library, which contains routines for doing fundamental vector and matrix operations.
- http://topo.math.u-psud.fr/~sands/Programs/BLAS/