https://github.com/haan/modelizer
A database modeling tool for teaching
https://github.com/haan/modelizer
database database-modeling education teaching teaching-tool
Last synced: 9 days ago
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A database modeling tool for teaching
- Host: GitHub
- URL: https://github.com/haan/modelizer
- Owner: haan
- License: agpl-3.0
- Created: 2026-01-09T22:37:14.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2026-05-26T06:10:06.000Z (about 1 month ago)
- Last Synced: 2026-05-26T08:03:40.509Z (about 1 month ago)
- Topics: database, database-modeling, education, teaching, teaching-tool
- Language: JavaScript
- Homepage: https://www.modelizer.lu
- Size: 1.06 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Modelizer
Modelizer is a lightweight database modeling tool developed for teaching the database modeling process (initially for courses in Luxembourg).
- Online version: https://www.modelizer.lu/
- Download: GitHub Releases
- Docker image: https://hub.docker.com/r/haanlaurent/modelizer
## Run locally (Windows)
1. Download the latest release from the GitHub Releases page.
2. Unzip it anywhere on your computer.
3. Double-click `modelizer.bat`
4. Open your browser at http://localhost:8080
The release includes a tiny local webserver based on miniserve:
https://github.com/svenstaro/miniserve
## Run with Docker
Run the latest published image from Docker Hub:
https://hub.docker.com/r/haanlaurent/modelizer
```bash
docker run --rm -p 8080:80 haanlaurent/modelizer:latest
```
Then open: http://localhost:8080
Run a specific version tag:
```bash
docker run --rm -p 8080:80 haanlaurent/modelizer:
```
Build and run locally from this repository:
```bash
docker build -t modelizer:local .
docker run --rm -p 8080:80 modelizer:local
```
## Supported modeling elements
Modelizer supports:
- different modeling levels:
- conceptual model (CDM)
- logical model (LDM)
- physical model (PDM)
- classes
- associations
- associative associations
- reflexive associations
- composite aggregations (enable in menu first)
- multiplicities
- attributes
- attribute types
- default values
- constraints: Null, Unique, Auto Increment
- import from Java Modelizer files
## What Modelizer does (and does not do)
Modelizer is intentionally a teaching tool that simplifies drawing and defining models.
It contains no validation logic and does not generate relationships automatically from associations.
It does not help you make the "right" modeling decisions — you do.
## Export & storage
- Export format: PNG
- Models must be downloaded manually (no server-side storage)
- Settings are stored in browser localStorage
## Acknowledgments
- ChartDB (interface design inspiration): https://github.com/chartdb/chartdb/
- Java Modelizer by Bob Fisch: https://modelizer.fisch.lu/
- miniserve (local webserver used in the release bundle): https://github.com/svenstaro/miniserve