Create ER diagrams, SQL schemas, and DBML models entirely in your browser. No uploads, no tracking, and fully offline. Your database schema never leaves your computer. Ideal for engineering teams that prioritize privacy and data protection.
Your diagrams stay on your computer. No uploads, no accounts, no cloud storage, and no tracking scripts.
After the first load, the entire application runs locally in your browser without an internet connection.
Database schemas often contain critical business logic and internal architecture. Keep everything secure and local.
Define relational database diagrams using open-source schema languages with instant visual rendering.
Export CREATE TABLE statements and visualize SQL database structures instantly.
Create clean, presentation-ready ER diagrams for architecture reviews, planning, and documentation.
Databasediagram.com is a privacy-focused database diagram tool for developers, architects, and engineering teams. Design relational database schemas visually using DBML or ERDL with instant diagram generation directly in your browser.
Unlike cloud-based ER diagram tools, all processing and rendering happen locally on your device. No schema uploads, no server-side processing, and no tracking.
Visualize PostgreSQL, MySQL, SQLite, and SQL Server database schemas with fast offline editing, SQL DDL generation, and clean presentation-ready diagrams.
| Feature | dbdiagram.io | Databasediagram.com |
|---|---|---|
| Monthly subscription required | ✔️ | 💰 One-time perpetual license |
| Works Offline | ❌ | ✔️ |
| Private diagrams on free plan | ❌ | ✔️ |
| No signup required to export | ❌ | ✔️ |
| Fully local processing & rendering | ❌ | ✔️ |
| DBML support | ✔️ | ✔️ |
| ERDL support | ❌ | ✔️ |
| Instant preview & sharing | ✔️ | ✔️ |
Create database diagrams using open-source languages including DBML and ERDL. These formats make it easy to maintain, version, and share relational database schemas across engineering teams.
Database schemas frequently contain sensitive information about your application architecture, business logic, internal systems, and customer data structures.
Most online database diagram tools upload your schema to cloud servers for processing. Databasediagram.com processes everything locally in your browser, keeping your diagrams fully private and under your control.
Ideal for enterprise engineering teams, consultants, regulated industries, healthcare, finance, and organizations with strict security requirements.
Yes. All database diagram rendering and processing happen locally in your browser. Your schemas are never uploaded to servers.
Yes. After the initial page load, the application works fully offline directly in your browser.
No signup or account is required to create ER diagrams, edit DBML files, or export SQL schemas.
Yes. The editor fully supports DBML for defining relational database schemas and generating visual ER diagrams instantly.
Yes. You can generate SQL CREATE TABLE statements directly from your diagrams and schema definitions.
Databasediagram.com can be used to model PostgreSQL, MySQL, SQLite, SQL Server, and other relational database schemas.
Offline database diagram tools help protect sensitive schemas, internal architecture, and proprietary business logic by keeping all processing local to your device.
Yes. Because diagrams are processed locally without cloud uploads, the tool is ideal for security-focused teams, consultants, healthcare, finance, and enterprise environments.
DBML (Database Markup Language) is an open-source language for defining relational database schemas in a clean and readable text format.
Yes. You can export diagrams, generate SQL DDL, and copy schema visuals into architecture documentation and presentations.
