Fast Light Toolkit - Fast Light Toolkit (FLTK)

Latest Release:	1.3.8
Release Notes:	View Release Notes
Weekly Snapshot:	1.4.x-20220805-128aa08b
Developer Roadmap:	View Roadmap
Commit Activity: (updated every 15 min.)	View Graph

FLTK (pronounced "fulltick") is a cross-platform C++ GUI toolkit for UNIX^®/Linux^® (X11), Microsoft^® Windows^®, and MacOS^® X. FLTK provides modern GUI functionality without the bloat and supports 3D graphics via OpenGL^® and its built-in GLUT emulation.

FLTK is designed to be small and modular enough to be statically linked, but works fine as a shared library. FLTK also includes an excellent UI builder called FLUID that can be used to create applications in minutes.

FLTK is provided under the terms of the GNU Library Public License, Version 2 with exceptions that allow for static linking.

	Current Poll [ Show All ]
	Note: This poll is closed. Do you need / use the "FLTK Apps" and "Links" tabs on the FLTK website? We may want to close these parts if users don't want or need them. You may pick more than one answer. (please pick all that apply) Yes, I'm often looking for interesting FLTK apps. Yes, please keep, but I don't use them frequently. No, I don't really need these apps and links pages. No, I never use them, please remove. I use FLTK Apps but not Links. I use Links but not FLTK Apps. I used them when I was new to FLTK. I believe they are important for new users. I like them, but they should be better accessible. I abstain. [ Results ] (442 votes, 4 comments)

	Top 10 Links [ Show All ]
	Installation CodeBlocks with FLTK on Windows 2021-12-01
	FLTK 1.3.0 Tutorial for Beginners 1
	The Daily Journal 2-0.2
	KasoVerb 3
	iMage 1.0
	Tilemap Studio 4.0.1
	SpiritVNC - FLTK 0.4.7
	flrig 1.3.37
	FLTK Python binding course (pyFltk) 0.1
	fltklayout 0.1

Site News

Dec 01, 2018: The FLTK Team is proud to announce that we moved our source code repository to Git and the FLTK website to a new server. Please see article FLTK Moved to Git and to a new Server.

May 2013: Back in April 2013 we had to move the fltk.general and fltk.coredev lists to Google Groups. Please join us there to reconnect. All postings from today on back through 2004 are available on the FLTK Forums page.

Recent Articles [ Show All ]

Git for FLTK Users Sticky

08:19 Jun 14, 2021 by AlbrechtS, 2 comments
How to use Git for downloading and using FLTK. [ Read ]

Git for FLTK Developers Sticky

06:24 Feb 11, 2019 by AlbrechtS, 0 comments
How to use Git as a FLTK developer to push your changes to the FLTK Git repository - work in progress... [ Read ]

What are the Versions of FLTK? Sticky

11:09 Nov 20, 2021 by engelsman, 3 comments
There is a lot of confusion, especially for people who are new to FLTK, about the different versions that are available, what they offer, and when they will be released. This article attempts to clarify matters. [ Read ]

FLTK 1.4.x Weekly Snapshot (master)
00:05 Aug 05, 2022 by WebsiteCron, 0 comments
A new weekly snapshot of FLTK 1.4.x (master) is now available [ Read ]

Installation CodeBlocks with FLTK on Windows 2021-12-01
10:17 Jul 24, 2022 by greg.ercolano, 0 comments
How to install FLTK together with CodeBlocks on Windows and how to create FLTK programs with the GNU C++ compiler. [English + German] [ Read ]

FLTK 1.3.8 released on Nov. 20, 2021
10:50 Nov 20, 2021 by AlbrechtS, 0 comments
FLTK 1.3.8 is a maintenance release with minor enhancements and some macOS related improvements. One new function 'fl_choice_n()' has been introduced. [ Read ]

Tilemap Studio 4.0.1
17:42 Nov 01, 2021 by roukaour, 0 comments
Tilemap Studio is a tilemap editor and creator for Game Boy, Game Boy Color, Game Boy Advance, DS, and SNES projects. It has 12 GUI themes based on different operating systems, toolkits, or other applications. [ Read ]

fltk-rs: Rust bindings for FLTK
07:00 Sep 08, 2021 by Mo_Al_, 0 comments
An introduction of the Rust bindings for FLTK [ Read ]

Tylosaurus v1
07:04 Sep 04, 2021 by davejordan, 0 comments
A utility for players of Scrabble, Word With Friends, and similar tile-based word games. [ Read ]

Tylosaurus
23:26 Aug 05, 2021 by davejordan, 0 comments
A utility for players of Scrabble, Word With Friends, and similar tile-based word games. [ Read ]

FLTK 1.3.7 released on July 25, 2021
08:50 Jul 25, 2021 by AlbrechtS, 0 comments
FLTK 1.3.7 is a maintenance release for macOS only. It fixes one regression introduced in FLTK 1.3.6 and two long standing timer issues on macOS. Other platforms than macOS are not affected. [ Read ]

FLTK 1.3.6 released on May 15, 2021
05:17 May 15, 2021 by AlbrechtS, 0 comments
FLTK 1.3.6 is a maintenance release with some enhancements and bug fixes. It is expected to be the last release in the 1.3.x series. [ Read ]

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