Free • Open Source • v Latest

BRModelo Download — Free Database Modeling & ER Diagram Tool

BRModelo is a powerful and easy-to-use database modeling tool that allows you to design ER diagrams, relational schemas, and visualize database structures efficiently.

ER Diagram Designer
Database Modeling Tool
Relational Schema Support
Lightweight Desktop App
Open Source Software
Cross-Platform Compatibility
BRModelo ER diagram editor showing database tables and relationships
What is BRModelo?

A focused tool for designing databases visually

BRModelo is a free, open-source desktop application built for students, developers and data professionals who need a fast way to plan, document and understand database structures — from a single table to a full relational schema.

  • Create ER diagrams visually
  • Design relational database structures
  • Understand database relationships
  • Improve database planning
  • Useful for learning and professional projects
  • Lightweight and easy to use
Core Features

Everything you need to model databases

A complete set of modeling capabilities focused on clarity, speed and learning.

ER Diagram Designer

Build entity-relationship diagrams visually with an intuitive drag-and-drop canvas.

Relational Schema Generator

Convert conceptual models into clean relational schemas ready for implementation.

Visual Database Modeling

Design entities, attributes and relationships in a fully visual workspace.

Table Relationship Mapping

Define one-to-one, one-to-many and many-to-many relations with clarity.

Attribute & Key Definition

Set primary keys, foreign keys and constraints with structured tools.

Export Diagram Support

Export your models and diagrams in common formats to share or document.

Cross-Platform Desktop App

Runs natively on Windows, Linux and macOS without complex setup.

Lightweight Performance

Minimal resources, fast startup and smooth interaction on low-end machines.

Open Source Community Driven

Backed by a community of developers and educators that keeps it evolving.

Get Started

How to download & install BRModelo

Six simple steps to go from download to your first ER diagram.

  1. 1

    Download BRModelo Package

    Get the latest BRModelo build for your operating system from the download section.

  2. 2

    Extract or Install Setup

    Unzip the archive or run the installer following the on-screen instructions.

  3. 3

    Run Application

    Launch BRModelo from your desktop, applications folder or terminal.

  4. 4

    Create New Project

    Start a fresh modeling workspace and name your database project.

  5. 5

    Design ER Diagram

    Drag entities to the canvas, add attributes and connect relationships.

  6. 6

    Export or Save Model

    Save your project file locally or export the diagram for sharing.

Software Information

BRModelo at a glance

Software Name
BRModelo
Category
Database Modeling Tool
Developer
Open Source Community
License
Free / Open Source
Platforms
Windows, Linux, macOS
Interface
GUI Desktop Application
Purpose
ER Diagram & Database Design
File Support
Project Files / Export Formats
Internet Requirement
Offline Supported
Latest Version
Dynamic
Pricing
Free
How it works

Designed around your modeling workflow

01

Visual Modeling Engine

A drag-and-drop canvas lets you place entities, attributes and relationships with precision — no code required to build a complete ER diagram.

02

Schema Design System

Translate conceptual models into clean relational schemas, defining tables, columns and data structures in a guided workflow.

03

Relationship Mapping

Connect entities with typed relationships and constraints, making cardinalities and dependencies easy to understand at a glance.

04

Export & Project Management

Save reusable project files and export diagrams for documentation, presentations or team handoff.

System Compatibility

Runs everywhere you work

Windows OS

Full support on Windows 10 and Windows 11 with a native desktop experience.

Linux Distributions

Runs on major distributions including Ubuntu, Fedora, Debian and Arch-based systems.

macOS Systems

Compatible with Intel and Apple Silicon macOS releases.

Virtual Machines

Works reliably inside VMs for isolated development or classroom labs.

Low-End PCs

Lightweight footprint keeps it usable on older or modest hardware.

High-End Development Systems

Scales smoothly on powerful workstations used for large data models.

Use Cases

Built for every database challenge

Database Learning & Education

Helps students grasp ER concepts through visual practice.

Software Development Projects

Speeds up schema design at the start of any new product.

Backend System Design

Document and structure backend data layers cleanly.

Academic Assignments

Ideal companion for coursework and database labs.

Enterprise Database Planning

Model complex domains before committing to implementation.

ER Diagram Visualization

Communicate database structure to teams and stakeholders.

Pros & Cons

An honest overview

Pros

  • Free and open source
  • Easy visual interface
  • Great for learning databases
  • Lightweight software
  • Cross-platform support
  • ER diagram focused tool

Cons

  • Limited advanced enterprise features
  • Basic UI compared to modern SaaS tools
  • Requires understanding of database concepts
  • Not cloud-based
Troubleshooting

Common issues & fixes

Verify your operating system meets the requirements and that the downloaded archive is not corrupted. Re-download and try installing again.
Testimonials

Loved by students and professionals

BRModelo made it click for me. Building ER diagrams visually is the best way to learn database design.

Marina Lopes
Database Student

I sketch every new project schema in BRModelo before writing a single line of SQL. Fast and clean.

Daniel Cruz
Software Engineer

A staple tool in my database course. Students get the concepts much faster with visual modeling.

Prof. Helena Souza
University Professor

Lightweight, focused and free. It does ER modeling better than tools that cost a fortune.

Lucas Almeida
Backend Developer

Perfect for hands-on workshops. Installation is simple and the interface is approachable.

Rafaela Mendes
IT Trainer

Great for documenting existing schemas and sharing diagrams with non-technical stakeholders.

Thiago Pereira
Data Analyst
FAQ

Frequently asked questions

BRModelo is a free open-source desktop application for designing entity-relationship diagrams and modeling relational databases visually.

Download BRModelo and start designing databases visually

Create professional ER diagrams and relational database models with a simple and powerful open-source tool.