Free ERD modeling tool for creating Entity-Relationship Diagrams and relational/star schemas, aiding in visualizing and designing databases.

Learn Entity Relationship Diagram (ERD). Read this ERD guide for everything you need to know about data modeling and database design with ERD.

ER Diagrams are most often used to design or debug relational databases in the fields of software engineering, business information systems, education and research.

ERD stands for entity relationship diagram. People also call these types of diagrams ER diagrams and Entity Relationship Models. An ERD visualizes the relationships between entities like people, things, …

Mar 12, 2026 · An Entity Relationship Diagram (ERD) is a graphical representation that shows how entities, such as people, objects, or concepts, relate to each other within a system.

An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things of interest) …

Dec 12, 2025 · What is an entity relationship diagram (ERD)? An entity relationship diagram (ERD) is a visual representation that shows how different pieces of information in a database relate to each …

Entity relationship diagrams (ERD), or ER models, show the logical structure of databases and highlight the interrelations between specific concepts, or entities, (i.e. objects, people, places, etc.) in a given …

No matter you want to create a conceptual, logical or physical data model, our online ERD tool just works perfectly. Need some inspiration? We've put together some ERD examples below to help you …

Oct 14, 2025 · An entity relationship diagram (ERD), also known as an entity relationship model, is a graphical representation that depicts relationships among people, objects, places, concepts or …