Side by side
ERBuilder Data Modeler vs OpenDBD
Both stand on database design tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
ERBuilder covers both forward and reverse database engineering, with a broad list of supported databases. Its paid editions add capabilities such as Git collaboration and documentation generation, while the license type affects machine and network requirements.
Visit ERBuilder Data Modeler Free plan Web
OpenDBD combines visual schema design, AI assistance, and a broad set of export formats in a free web app. Check provider charges and the browser-based storage model against your needs.
Visit OpenDBDThe facts
| ERBuilder Data Modeler | OpenDBD | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | Web |
| Lowest paid plan | Professional: $139 a year | Free or on request |
| Plans published | 7 | 1 |
| Maker | Not published | Not published |
| Website | soft-builder.com | opendb.design |
| On database design tools | #13 of 35 | #17 of 35 |
ERBuilder Data Modeler: what it does well
- Supports four diagram notations.
- Generates DDL scripts and databases from models.
- Reverse engineers existing databases into graphical models.
- Trial provides all features for 15 days.
- Enterprise supports Git collaboration and documentation generation.
What to know first
- Available on Windows only.
- Workstation licenses are limited to one machine.
- Floating licenses require a minimum order quantity of two.
OpenDBD: what it does well
- Visual canvas keeps schema elements structured.
- Supports multiple AI providers, including local Ollama.
- Exports SQL, diagrams, images, and scripts.
- Multiple projects, notes, chat, and undo/redo are included.
What to know first
- AI provider charges may apply.
- Workspace is stored in the browser and is not synced to the maker's servers.
Alternatives to ERBuilder Data Modeler Alternatives to OpenDBD The whole list
