Browse free open source Diagram software and projects for Windows below. Use the toggles on the left to filter open source Diagram software by OS, license, language, programming language, and project status.
Security-first diagramming for teams
Diagram and flowchart generation from text similar to markdown
Distributed tracing system to gather timing data
Security-first diagramming for teams
Xfig is a diagramming tool
The Pencil Project's unique mission is to build a free tool
Generate diagrams from textual description
JavaScript client-side editor for general diagramming & whiteboarding
Reads from existing public and private cloud providers
D2 is a modern diagram scripting language that turns text to diagrams
Smart, fast and extensible build system
an Open Source BPMN 2.0 / DMN 1.1 Modeler
Diagram as Code for prototyping cloud system architectures
JavaScript diagramming library for interactive flowcharts & org charts
Interactive Terraform visualization. State and configuration explorer
Automatically generate class diagram from code
Graph and network visualization using tabular data in R
Digital timing diagram rendering engine
Machine learning, conversational dialog engine for creating chat bots
The easiest way to use deep metric learning in your application
Prototyping Tool for exporting React/Typescript Applications!
Display dynamic, automatically organised, customizable network views
C4-PlantUML combines the benefits of PlantUML and the C4 model