<ul><li>APIDog is a cost-effective alternative to Postman that offers all the features of the paid version at a fraction of the cost.</li><li>Draw.io, Pencil Project, Creately, Dia, Graphviz, yEd, Apache OpenOffice Draw, Cacoo, and Figma are open-source alternatives to LucidChart for diagramming purposes.</li><li>These tools provide diverse features, collaboration capabilities, and extensibility, catering to various professional fields.</li><li>APIDog offers a user-friendly GUI, easy migration from Postman, and Dark Mode, making it a great option for API testing and collaboration.</li></ul>

Top 10 Open Source Alternatives to LucidChart You Need Now

Discover more