Open-source alternatives to Lucidchart

Desktop app for diagrams and flowcharts — Official electron build of draw.io

↔ alternative to Microsoft Visio、Lucidchart

Diagramming and GUI prototyping tool — The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use.

↔ alternative to Lucidchart

Edit, preview and share Mermaid diagrams online — Edit, preview and share mermaid charts/diagrams. New implementation of the live editor.

↔ alternative to Lucidchart

Desktop modeler for BPMN, DMN diagrams and forms — A modeling solution for BPMN, DMN, and Forms based on bpmn.io. As a companion tool to your favorite IDE it supports you in implementing solutions with Camunda.

↔ alternative to Microsoft Visio、Lucidchart

Simple tool for drawing UML diagrams quickly — Free UML Tool for Fast UML Diagrams

↔ alternative to Microsoft Visio、Lucidchart

Database diagramming and automation tool. — Open source database diagramming and automation tool

↔ alternative to Lucidchart、Microsoft Visio