FLTK Alternatives

FLTK is described as 'The Fast, Light Toolkit (FLTK, pronounced fulltick) is a cross-platform graphical user interface (GUI) library developed by Bill Spitzak and others. Made to accommodate 3D graphics programming, it has an interface to OpenGL, but it is also suitable for general GUI programming' and is an app in the development category. There are more than 10 alternatives to FLTK for a variety of platforms, including Windows, Linux, Mac, BSD and Online / Web-based. The best alternative is Qt, which is both free and Open Source. Other great apps like FLTK are Qt Creator, GTK+, wxWidgets and Uno Platform.

FLTK alternatives are mainly IDEs but may also be Game Development Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of FLTK.

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FLTK

Free • Open Source

Mac
Windows
Linux

The Fast, Light Toolkit (FLTK, pronounced fulltick) is a cross-platform graphical user interface (GUI) library developed by...

Learn more about FLTK

Qt
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Freemium • Open Source
Mac
Windows
Linux
BSD
47 alternatives to Qt
Qt is a cross-platform application framework that is widely used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while having the power and speed of native applications.
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Qt Features
Desktop Application
Clean API
C++
Embedded Device development
Native application
Cross-Platform
FOSS
Qt Creator
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Paid • Open Source
IDE
Mac
Windows
Linux
BSD
133 alternatives to Qt Creator
Qt Creator is a cross-platform integrated development environment (IDE) built for the maximum developer experience. Qt Creator runs on Windows, Linux, and macOS desktop operating systems and allows developers to create software across desktop, mobile, and embedded platforms.
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Qt Creator Features
1. AutocompletionQt Creator can predict and complete the rest of a word or phrase you're typing.
2. Code FormattingQt Creator supports code formatting for multiple languages and code styles.
3. Ad-freeQt Creator doesn't contain any form of external advertising.
4. Syntax HighlightingQt Creator supports syntax highlighting for various programming and markup languages.
5. Works OfflineQt Creator can be used without the need to connect to the internet.
C++
QT Based
Build system
Visual studio intergration
Debugging
Refactoring
Qt Creator vs FLTK opinions
pros, cons and recent comments
Guest
fltk is a library. Qt creator is an IDE.
Negative comment•
1

ILYA_
QT Creator is so old IDE but still crashed even with harmless operations. FLTK is not IDE but provides better stability.
Comment•
0

Guest
QT Creator is an ide not a library
Negative comment•
3
GTK+
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No
Free • Open Source
Mac
Windows
Linux
Chrome OS
31 alternatives to GTK+
GTK+ is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK+ is suitable for projects ranging from small one-off tools to complete application suites.
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GTK+ Features
Cross-Platform
FOSS
wxWidgets
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No
Free • Open Source
Mac
Windows
Linux
29 alternatives to wxWidgets
wxWidgets is a C++ library that lets developers create applications for Windows, OS X, Linux and UNIX on 32-bit and 64-bit architectures as well as several mobile platforms including Windows Mobile, iPhone SDK and embedded GTK+.
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wxWidgets Features
Ruby
C++
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Uno Platform
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Free • Open Source
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
37 alternatives to Uno Platform
Uno is the platform for building native mobile, desktop and WebAssembly apps with C#, XAML from single codebase. It's a Universal Windows Platform Bridge that allows UWP-based code (C# and XAML) to run on iOS, Android, and WebAssembly.
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Uno Platform Features
Support for WebAssembly
Native application
XAML
Avalonia
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Free • Open Source
Mac
Windows
Linux
Microsoft Visual Studio
24 alternatives to Avalonia
Avalonia is a WPF-inspired cross-platform XAML-based UI framework providing a flexible styling system and supporting a wide range of OSs: Windows (.NET Framework, .NET Core), Linux (GTK), MacOS, Android and iOS.
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Avalonia Features
Graphical User Interface
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CrossBrowdy
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No
Free • Open Source
Game Development Tool
Online
469 alternatives to CrossBrowdy
CrossBrowdy is an open-source and free JavaScript framework that let developers create multimedia apps, game engines, games, emulators and so on.
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CrossBrowdy Features
Progressive Web App
Cross-Platform
MauiKit
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No
Free • Open Source
Linux
Android
27 alternatives to MauiKit
MauiKit is a framework based on QQC2 and Kirigami, that helps to create convergent applications that run on GNU Linux and Android, based on the Maui HIG. MauiKit is an open source framework to make the applications look good, made by .
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MauiKit Features
GUI Designer
C++
Add a screenshot
PySide
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Free • Open Source
Mac
Windows
Linux
16 alternatives to PySide
The PySide project provides LGPL-licensed Python bindings for the Qt cross-platform application and UI framework. PySide Qt bindings allow both free open source and proprietary software development and ultimately aim to support all of the platforms as Qt itself.

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PyQt
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Free • Open Source
Mac
Windows
Linux
16 alternatives to PyQt
PyQt combines all the advantages of Qt and Python .
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PyQt Features
1. Support for scriptingPyQt supports scripts and macros to automate or customize tasks.
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