List of language bindings for GTK

As shown in the table below, GTK has a range of bindings for various languages[1] that implement some or all of its feature set.

• GObject (GOB) was initially written as a central component of GTK, but outsourced into GLib.
• GObject Introspection is a middleware layer between C libraries (using GObject) and language bindings, e.g. PyGObject uses this, while PyGTK does not.[2]
• Official GNOME Bindings follow the GNOME release schedule which guarantees API stability and time-based releases.
• Glade Interface Designer

Language	Name	Supported?				License	Notes
		2.24	3.12	GIR	Official
Ada	GtkAda	Partial	Partial	Yes	No	GPL-3	Supported up to 3.14.[3][4]
C	GTK	Yes	Yes	N/A	Yes	LGPL-2.1	Native, no binding needed.
C++	gtkmm	Yes	Yes	No	Yes	LGPL-2.1
C# and other CLI languages	Gtk#	Partial	No	No	Yes	LGPL-2.1	Support for GTK 2 is available up to 2.12. [5]
	GtkSharp	No	Yes	No	No	LGPL-2.1	Support for GTK 3 is available up to 3.22.
Crystal	crystal-gobject	‹See Tfd›?	‹See Tfd›?	Yes	No	Apache-2.0
D	GtkD	Yes	Yes	Yes	No	LGPL-3 with exceptions[6]	Supported since 2.12
Erlang	gtknode	Partial	No	No	No	MIT[7]	No, partially supported up to 2.16
Fortran	gtk-fortran	Partial	Partial	No	No	GPL-3	Partially supported since 2.24. GTK 4 support in development.
FreeBASIC	FreeBASIC GTK+ bindings	Yes	Partial	No	No	LGPL-3 with exception	Supported up to 3.4 and since 2.8, integrated into the core distribution.
Gambas	Gambas gb.gtk component	Partial	No	No	No	GPL-2	GTK+ 3 support is in development
Genie	Genie	Yes	Yes	Yes	Yes	LGPL-2.1	language written for GObject system
Go	go-gir-generator	‹See Tfd›?	‹See Tfd›?	Yes	No	GPL-3
	gotk3	No	Partial	No	No	ISC[8]
Guile	guile-gnome	Partial	No	No	No	GPL-2	supported up to 2.12, partially supported on 2.14
Haskell	Gtk2Hs	Yes	Partial	No	No	LGPL-2.1	Gtk2Hs is a set of Haskell bindings to many of the libraries included in the GTK+/GNOME platform.
	haskell-gi	No	Yes	Yes	No	LGPL-2.1	Generate Haskell bindings for GObject Introspection capable libraries
J	J GTK addon	Partial	No	No	No	GPL-3
Java and other JVM languages	java-gnome	Yes	Yes	No	Yes	GPL-2 with exception	Unavailable on Microsoft Windows
Julia	Gtk.jl	Yes	Yes	No	No	MIT	Includes Glib support
JavaScript	Gjs	Yes	Yes	Yes	Yes	MIT	GNOME wiki, based on Mozilla's SpiderMonkey
	Seed	Yes	Yes	Yes	Yes	LGPL-2.1	GNOME wiki, based on WebKit's JavaScriptCore
Lua	LGI	Partial	Yes	Yes	No	MIT[9]	Dynamic Lua binding to GObject libraries using GObject-Introspection.
	lgob	No	Yes	Yes	No	LGPL-3	lgob provides bindings of GObject-based libraries for Lua 5.1.
Nim	gintro	No	Yes	Yes	No	MIT	High level GObject-Introspection based GTK3/GTK4 bindings for Nim language
OCaml	LablGtk	Partial	No	No	No	LGPL-2.1 with exception	No, supported up to 2.16
ooRexx	RexxGTK	Partial	No	No	No	CPL	Yes, 2.0 or later
Objective-C	CoreGTK	No	Partial	No	No	LGPL-2.1
	ObGTK	Partial	No	No	No	LGPL-2.1
	Objective-C GTK	Partial	No	No	No	LGPL-2.1
Pascal	Free Pascal gtk package	Yes	Yes	No	No	LGPL-3 with exception	Supported up to 2.24, integrated into the core distribution. Gtk+3.0 bindings are being developed in the Lazarus-ccr project.[10]
Perl	Gtk2-Perl	Yes	Yes	Yes	Yes	LGPL-2.1
PHP	PHP-GTK	Partial	Partial[11]	No	No	LGPL-2.1	PHP until 5.2, GTK is GTK2
Prolog	PLGI	Partial	Yes	Yes	No	LGPL-2.1	Dynamic Prolog binding to GObject libraries using GObject-Introspection.
Python	pgi	Partial	Partial	Yes	No	LGPL-2.1	GObject Introspection Bindings for PyPy.
	pygir-ctypes	Partial	Partial	Yes	No	BSD	Pure Python GObject Introspection Repository (GIR) wrapper using ctypes.
	PyGObject	Yes	Yes	Yes	Yes	LGPL-2.1	since 2.22[12]
	PyGTK	Yes	No	No	Yes	LGPL-2.1	static bindings, use PyGObject
R	RGtk2	Partial	No	No	No	GPL-2	RGtk2.pdf
Ruby	GirFFI-Gtk	Partial	Partial	Yes	No	LGPL-2.1	GirFFI-based bindings for Gtk+. Supports both Gtk+ 2 and Gtk+ 3.
	Ruby-GNOME2	Partial	Yes	No	No	MIT License	Partial, supported up to 2.12, partially supported since 2.14[13]
Rust	gtk-rs	No	Yes	Yes	No	MIT[14]
	gi-rust	No	Yes	Yes	No	LGPL-2.1
Smalltalk	GNU Smalltalk GTK+ bindings	Yes	No	No	No	GPL-2
	Smalltalk YX GTK+ plugin	Yes	No	No	No	MIT
	SqueakGtk	Partial	No	No	No	MIT
Tcl	Gnocl	Yes	No	No	No	BSD
Vala	Vala	Yes	Yes	Yes	Yes	LGPL-2.1	language written for GObject system
Wrapl	Wrapl GTK+ module	Partial	No	No	No	GPL-3	No, but almost full up to 2.22

See also

• List of language bindings for Qt 4
• List of language bindings for Qt 5
• List of language bindings for wxWidgets

References

1. "Language Bindings". The GTK Project. Archived from the original on 2011-07-13. Retrieved 2013-05-18.
2. "GObject Introspection".
3. http://docs.adacore.com/gtkada-docs/gtkada_ug/_build/html/intro.html
4. https://docs.adacore.com/gtkada-docs/gtkada_ug/_build/html/object_oriented.html
5. https://www.mono-project.com/docs/gui/gtksharp/
6. "GtkD License LGPL-3 with additional exceptions".
7. "gtknode license".
8. "gotk3 license".
9. "LGI license".
10. http://wiki.freepascal.org/Gtk%2B3
11. Alexandre Pereira Bühler (2015-06-22). "Attention: created branch dev-php-gtk3". PHP-GTK General Mailing List.
12. "PyGObject History". Retrieved 2013-08-29.
13. Ruby-GNOME2 Project Team. "gtk3 / Rubygems". Retrieved 2013-05-07.
14. "GTK-rs license".