# List of language bindings for GTK

As shown in the table below, GTK has a range of bindings for various languages that implement some or all of its feature set. GTK 2 is no longer supported, meaning some languages below do not have current GTK support.
* 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.
* Official GNOME Bindings follow the GNOME release schedule which guarantees API stability and time-based releases.
* Glade Interface Designer
| Language | Name | Supported? | Supported? | Supported? | Supported? | Supported? | License | Notes |
| Language | Name | 2.24 | 3.12 | 4.0 | GIR | Official | License | Notes |
| Ada | GtkAda | Partial | Partial | ? | Yes | No | GPL-3 | Supported up to 3.14. |
| C | GTK | Yes | Yes | Yes | — | Yes | LGPL-2.1 | Native, no binding needed. |
| C++ | gtkmm | Yes | 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. |
| C# and other CLI languages | GtkSharp | No | Yes | No | No | No | LGPL-2.1 | Support for GTK 3 is available up to 3.22. |
| C# and other CLI languages | Gir.Core | ? | ? | Partial | Partial | No | MIT | |
| Crystal | crystal-gobject | No | Yes | Partial | Yes | No | BSD | |
| Crystal | gtk4.cr | No | No | Yes | Yes | No | MIT | |
| D | GtkD | Yes | Yes | ? | Yes | No | LGPL-3 with exceptions | Supported since 2.12 |
| Erlang | gtknode | Partial | No | ? | No | No | MIT | No, partly supported up to 2.16 |
| Fortran | gtk-fortran | Partial | Partial | Partial | No | No | GPL-3 | Supported since 2.24. Supports GTK 3 and GTK 4. |
| 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 | Yes | Partial | ? | No | No | GPL-2 | Secondary to the primary Qt components |
| Genie | Genie | Yes | Yes | Yes | Yes | Yes | LGPL-2.1 | language written for GObject system |
| Go | go-gir-generator | ? | ? | ? | Yes | No | GPL-3 | |
| Go | gotk3 | No | Partial | ? | No | No | ISC | |
| Guile | guile-gnome | Partial | No | ? | No | No | GPL-2 | supported up to 2.12, partly 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 | haskell-gi | No | Yes | 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 | No | Yes | GPL-2 with exception | Unavailable on Microsoft Windows |
| Julia | Gtk4.jl | Yes | Yes | Yes | No | No | MIT | Includes Glib support |
| JavaScript | Gjs | Yes | Yes | Yes | Yes | Yes | MIT | GNOME wiki, based on Mozilla's SpiderMonkey |
| JavaScript | Node-Gtk | No | Yes | Partial | Yes | No | MIT | Dynamic Node.js binding to GObject libraries using GObject-Introspection. |
| JavaScript | Seed | Yes | Yes | ? | Yes | Yes | LGPL-2.1 | GNOME wiki, based on WebKit's JavaScriptCore |
| Kotlin/Native | gtk-kt | No | Partial | Partial | Partial | No | AGPL-3.0 | Partial due to being In development, Usable to an extent. |
| Kotlin/Native | gtk-kn | No | No | No | Partial | No | LGPL-3 | Partial due to being In development, Usable to an extent. |
| Lua | LGI | Partial | Yes | ? | Yes | No | MIT | Dynamic Lua binding to GObject libraries using GObject-Introspection. |
| Lua | lgob | No | Yes | ? | Yes | No | LGPL-3 | lgob provides bindings of GObject-based libraries for Lua 5.1. |
| Nim | gintro | No | Yes | Yes | Yes | No | MIT | High level GObject-Introspection based GTK3/GTK4 bindings for Nim language |
| OCaml | LablGtk | Partial | Partial | ? | 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 | |
| Objective-C | ObGTK | Partial | No | ? | No | No | LGPL-2.1 | |
| Objective-C | 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. |
| Perl | Gtk2-Perl | Yes | Yes | No | Yes | Yes | LGPL-2.1 | |
| PHP | PHP-GTK | Partial | Partial | ? | 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. |
| Python | pygir-ctypes | Partial | Partial | ? | Yes | No | BSD | Pure Python GObject Introspection Repository (GIR) wrapper using ctypes. |
| Python | PyGObject | Yes | Yes | Yes | Yes | Yes | LGPL-2.1 | since 2.22 |
| Python | PyGTK | Yes | No | No | No | Yes | LGPL-2.1 | static bindings, use PyGObject |
| R | RGtk2 | Partial | No | ? | No | No | GPL-2 | RGtk2.pdf Archived 2016-03-09 at the Wayback Machine |
| Racket | gir | ? | ? | ? | Yes | No | MIT | |
| Ruby | GirFFI-Gtk | Partial | Partial | ? | Yes | No | LGPL-2.1 | GirFFI-based bindings for GTK. Supports both GTK+ 2 and GTK+ 3. |
| Ruby | Ruby-GNOME2 Archived 2008-08-21 at the Wayback Machine | Partial | Yes | Yes | No | No | MIT License | Partial, supported up to 2.12, partly supported since 2.14 |
| Rust | gtk-rs | No | Yes | Yes | Yes | No | MIT | |
| Rust | gi-rust | No | Yes | ? | Yes | No | LGPL-2.1 | |
| Smalltalk | GNU Smalltalk GTK+ bindings | Yes | No | ? | No | No | GPL-2 | |
| Smalltalk | Smalltalk YX GTK plugin | Yes | No | ? | No | No | MIT | |
| Smalltalk | SqueakGtk | Partial | No | ? | No | No | MIT | |
| Standard ML | Giraffe Library | No | Yes | ? | Yes | No | LGPL-2.1 | |
| Tcl | Gnocl | Yes | No | ? | No | No | BSD | |
| Vala | Vala | Yes | 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 |

## Gtk#

Gtk# is a set of .NET Framework bindings for the GTK graphical user interface (GUI) toolkit and assorted GNOME libraries. The library facilitates building graphical GNOME applications using Mono or any other compliant Common Language Runtime (CLR). Gtk# is an event-driven system like any other modern windowing library where every widget allows associating handler methods, which get called when certain events occur.
Applications built using Gtk# will run on many platforms including Linux, Windows and macOS. The Mono packages for Windows include GTK, Gtk# and a native theme to make applications look like native Windows applications. Starting with Mono 1.9, running Gtk# applications on macOS no longer requires running an X11 server.
Glade Interface Designer can be used with the Glade# bindings to easily design GUI applications. A GUI designer named Stetic is integrated with the MonoDevelop integrated development environment (IDE).
In addition to support the standard GTK/GNOME stack of development tools, the gtk-dotnet.dll assembly provides a bridge to consume functionality available on the .NET stack. At this point this includes the functionality to use System.Drawing to draw on a widget.
As of September 2020, Gtk# support for Gtk3 remains in the preview phase and forked projects, such as GtkSharp, have been founded to provide full Gtk3 support for C# and other CLI languages. The lack of a released version of Gtk# with support for Gtk3 was cited as a reason to remove the Banshee media player in Ubuntu 12.04.