DSpice: Design and Simulation of Circuits using Spice
A national virtual bridge engineering contest for kids of all ages.
very good CAD software
PlateEditor, a free web application to work with multi-well plates
SCADA HMI for substations, IoT and automation applications
RobBX - is a powerfull DIY Arduino constructor based from IQBX
JavaScript-Based Molecular Viewer From Jmol
FungiRegEx
Divide numbers with recurring decimals
Open-source JavaScript library for mobile-friendly interactive maps
Minimalistic wide-open GPS-locator/tracker
Peacefair PZEM PC application (web app)
CSS package for contin., discrete and combined modelling & simulation
A toolkit for managing and manipulating text annotations
Open source SCADA
Web application for long-term monitoring of radioactivity levels
Google Earth Enterprise - Open Source
Web labeling tool for bitmap images and point clouds