FLTK vs Klex
A side-by-side look at FLTK and Klex. For an in-depth review of either product, follow the links below.
FLTK
Development
FLTK (pronounced 'fulltick') is a lightweight, cross-platform C++ GUI toolkit for developing graphical user interfaces (GUIs). It provides modern GUI functionality without the bloat, supports 3D graphics via OpenGL, and works on Linux, Windows, and macOS.
crossplatformclightweight3d-graphicsopengl
Klex
Office & Productivity
Klex is an open-source alternative to Microsoft Excel that provides similar spreadsheet functionality. It allows users to create and edit spreadsheets, build formulas and charts, analyze data, and more. As an open-source software, Klex is free to download, use, and share.
spreadsheetexcel-alternativeopen-source