Flowchart Builder
Build process diagrams, decision trees, and workflows — right in your browser. No account, no upload, nothing sent to a server. Your diagram lives in local storage until you clear it or export it.
OpenER Diagram Builder
Design professional Entity Relationship (ER) diagrams directly in your browser with drag-and-drop editing, PK/FK support, Crow's Foot cardinality, smart relationship routing, automatic local saving, and PNG export. Perfect for database design, SQL modeling, and software architecture.
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