jsPlumb - JS Visualisation Library
Description: jsPlumb is an open-source JavaScript library for visualizing, manipulating and animating connections between elements in a web interface. It allows developers to easily create diagrams, flowcharts, dependency graphs and more.
Type: software
Pricing: Open Source
Penpot
Description: Penpot is an open source design and prototyping tool for UI and UX designers. It allows designers to create wireframes, mockups, and prototypes with support for canvas grids, symbols, shared libraries, and sketch imports. Penpot has vector editing capabilities, component libraries, and developer handoff features.
Type: software
Pricing: Open Source