Download of GLE 4.2.5 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free software is a product of GLE. We recommend checking the downloaded files with any free antivirus. Commonly, this program's installer has the following filename: qgle.exe. You can set up GLE on Windows XP/Vista/7/8/10/11 32-bit. The most popular versions among the software users are 4.2 and 4.1. The software is included in Development Tools.
From the developer:
GLE (Graphics Layout Engine) is a graphics scripting language designed for creating publication quality graphs, plots, diagrams, figures and slides.
GLE supports various graph types (function plots, histograms, bar graphs, scatter plots, contour lines, color maps, surface plots) through a simple but flexible set of graphing commands.
You may want to check out more software, such as beaGle, OpenGL ES Emulator or Jana2006, which might be related to GLE.