![]() ![]() As with all things, you get what you pay for, so the price of each tool reflects its list of features. ![]() There are free tools and some very expensive systems. Similarly, the price range for ER diagram tools is very wide. Some are little more than graphics packages, while others support the entire database design process and can even connect to the database and set up the schema for you. Therefore, when looking for the best ER diagram tools, we selected a range. Thanks to the endless varieties of human nature, there isn’t one ER diagram tool that would suit everybody. Some people just like to be able to create an ERD, while others just want one created automatically so they can move on to other tasks. Some people like automated ERD tools, while others are going to start unpicking features in a generated ER diagram. Not everyone has the same process for designing a database. A tool that supports the entity-attribute step, suggests attribute groupings, and generates the ERD with all keys and relationships automatically identified is even better. Straightforward utilities that enable you to zoom in or out, query each entity for its attributes, and try out different relationships really help. The ER diagram will extend over many “pages” and that means you will need to generate views of different areas and also get a tool that enables you to scroll around a much larger design area. It is available in free and paid versions. Dbdiagram.io A web-based ER diagram tool that enables design sharing. ![]()
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