Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. After you change the diagram, you change the database; you can import those changes back in the diagram. The only flaw is ordering of column names in the diagrams - that do not necessarily match with the ordinality of the column names in the real database if you do so.

Why choose Lucidchart as your ERD maker

Database Er Diagrams Examples

Tool For Er Diagrams

• Visualize relationships with our entity relationship modeling tool

  Entity relationship diagrams (ERDs) help you understand relationships between entities within a system, such as customers, products, or order IDs. An entity relationship diagram tool like Lucidchart helps you conceptualize your database design before you build it, including the overall structure and the ways different types of data interact, if at all. So, if you’re designing, patching, or debugging relational databases for software engineering, business information systems, or another industry, create ER diagrams online to better visualize your schemas, while spotting and correcting flaws early on.

• Easily diagram using ERD templates, symbols, and notations

  Our ER diagram tool simplifies database modeling, whether your diagrams are conceptual or physical. Drag and drop standard ERD shapes and symbols onto the canvas within seconds using our ER diagram creator. Differentiate relationships, entities, and their attributes. Include tables, fields, and primary or foreign keys, then connect each entity with specific crow’s foot notations to indicate the cardinality and ordinality of each entity. Or, select and customize a template by swapping symbols and notations to match your database structure.

• Import your database structure

  Lucidchart makes it easy to visualize your database structure and build ER diagrams online. Our ER diagram generator automatically generates an ERD and draws relationship lines when you import your database tables and schemas directly to your toolbox. Worry less about updating your diagrams every time you make a change—Lucidchart updates your fields whenever you import new or revised database files. Export your diagram to your database management system, including MySQL, PostgreSQL, SQL Server, or Oracle.

• Import your Salesforce schema

  Contrary to other ER diagram tools, Lucidchart eases the pain of managing your Salesforce database with our Salesforce schema builder. As a Salesforce admin or consultant, you can optimize your CRM faster and easier than ever before. Lucidchart automatically generates an ERD—all you have to do is simply import your Salesforce schema. Within seconds, start visualizing tables and relationships, and begin restructuring symbols and entities to discover new ways to customize your CRM.

• Collaborate and share with anyone, anywhere, anytime

  Invite team members to help you quickly assess the accuracy of your ERD as it grows larger and more complex. Lucidchart makes it easy to collaborate in real time as you draw ER diagrams online, whether your teams use Mac, PC, or Linux. Share your document via email or URL, and use @mention notifications and the comment locator to direct individuals to specific parts of your diagram. You can also export your diagram to Jira or Confluence or include it in a company presentation to facilitate understanding among individuals with different levels of technical knowledge.