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Logo Fltk (Fast Light ToolKit) is a LGPL'd C++ user interface toolkit for X and OpenGL and Win32 NT/95. Fltk was created to build in-house applications at Digital Domain for image processing and 3D graphics, but the author has released it to the public domain in the hopes that it can be used to make better, faster, and nicer-looking Unix programs. Fltk is written directly on top of Xlib and has been carefully optimized for code size and performance. It hides the Xlib interface and is thus designed to be portable to non-X systems.

Current Version:   1.0.10

License Type:   LGPL

Home Site:

Source Code Availability:   Yes

Available Binary Packages:

  • Debian Package:   No
  • RedHat RPM Package:   No
  • Other Packages:   ??

Targeted Platforms:

UNIX, Windows

Software/Hardware Requirements:


Other Links:

Mailing Lists/USENET News Groups:, to subscribe, send email to with "subscribe fltk" in message.

User Comments:

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