JDElite Data Modeler: Your Best Companion for Database Schema Design, Visualization and Re-engineering

Are you looking to fast-track your database SQL schema project?Launch our multi-engine data modeler to build, fix, and optimize your architecture instantly.Major features:
  • fine-tuning AI-generated SQL schemas, or reverse engineering SQL schemas
  • visually modeling SQL schemas as Entity-Relationship Diagrams (ERD)
  • building new SQL schemas from scratch and on-screen editing
  • designed for software developers, business analysts, solo architects, and agile teams
  • streamlined Database ERDs & complex flowcharts—powered by patented orthogonal routing
Supported databases: SQL Server, Oracle, MySQL, MariaDB, PostgreSQL, IBM DB2, and SQLite.
Try for free the Playground Access No account required to get started
Safely download Desktop File Browser to get full access to your file system
Patented connections layout, no visual clutter
For visual modeling, JDElite Data Modeler uses the proprietary orthogonal connections layout: patent No. US 10,424,096 - JDElite Consulting: Jordan Raykov, Sep. 24, 2019: Technique for Orthogonal Edge Routing of Directed Graph Diagrams with Edge Crossings Reduction.
JDElite ERD Modeling - How It Works
  • JDElite Data Modeler implements Entity-Relationship Diagram (ERD) modeling to visualize database tables, columns, keys, indexes, LOB (Large Data Objects), relationships, and constraints.
  • Database schema tables are modeled as diagram nodes, and the relationships between the tables are modeled as links between the primary and foreign keys.
  • Automated Bidirectional Parsing: Instantly imports SQL schemas into clean ERDs, edits visually, and exports back to valid SQL. Or create on-screen new ERD diagrams using mouse drag-n-drop.
  • Unified Local Native Support: 7 multi-engine targets (SQL Server, Oracle, MySQL, MariaDB, PostgreSQL, IBM DB2, and SQLite), managed under a proprietary unified JSON schema format.
  • Strict database integrity by automatically enforcing constraints and relationships during the ERD design phase.
JDElite Data Modeler Strictly Adheres to Industry-standard ERD Principles
  • Entity Relationship Structure – database schema tables are represented as diagram nodes, with columns shown as node rows, corresponding to table columns.
  • Using Mouse Actions – dragging a primary key handle highlights all foreign key potential recipients, ensuring accurate database constraints.
  • Automatic Referential Integrity - two-way synchronization between a graphical link and a constraint: creating a link by dragging the mouse will also automatically create the corresponding foreign key constraint. Vice versa, defining a foreign key constraint in the table editor generates the corresponding graphical link.
How to Run
JDElite Data Modeler’s Playground mode gives you access to most features, allowing you to create and edit diagrams, as well to open and edit different built-in templates within the secure browser sandbox. However, in order to get access to the Windows file system to import, export and save your projects, you need to install the Desktop File Browser module that uses node.js.
  • For new designs, either start from scratch, or select an ERD template from the provided set of solutions, based on various industry domains, like:
  • Company Management
  • Manufacturing/Warehouse Management
  • Enterprise Resource Planning
A Smarter Way to Design Flowcharts
Whether you're managing database schemas or visualizing processes, JDElite Data Modeler makes it easy. Create flowcharts, from simple to large and complex, by drag-and-drop and inline editing. The advanced layout algorithms reduce visual clutter, ensuring your diagrams are as clear and scalable as your ideas.