Welcome

Plagues

A Free, Open Source Solution That Allows You To Create Backends Without Code

Database Designer is an offline, no-code PostgreSQL modeling tool that auto-generates SQL, documentation, and C# Entity Framework with PQC-resistant security.

Windows • Linux (Soon) • Fully Offline • Post Quantum Computing Resistant • No BS

## How It Works

Database Designer provides a visual, schema-first workflow for building application backends. It generates:

✅ Complete SQL files — schemas, tables, references, and indexes ready to deploy
📘 Markdown documentation — clean, exportable, and team-friendly
💻 Entity Framework–ready C# classes — plug-and-play with your applications

Instead of writing raw SQL or juggling migrations manually, you:

  • Design tables visually
  • Define relationships and constraints explicitly
  • Generate schemas, documentation, and code artifacts
  • Keep everything offline and under your control

The tool is designed to stay out of your runtime — it helps you design systems, not lock you into them.

Meet the Team

Database_AM_Weakness.png Database_Erick_Evil.png Assets/Members/Database_John_Default.png Database_Lisa_Nails.png Database_Walker_Default.png Database_Chubu_Paper.png
Alain
QA & Creative Feedback

“Quis ut Deus?”		 IiErickiI
QA & Creative Feedback

“The fake is of far greater value. In its deliberate attempt to be real, it’s more real than the real thing.”		 Jpena173
Backend Support / Development Help

"I cant think of a quote you can leave it alone for now"		 KennaJoSmith
Lead Artist

“Hmu I draw furries”
Instagram		 WalkerDev
Founder / Lead Developer

“Don't be afraid of change—Think of it as something that'll open the door to deeper, more precious feelings for you in the future.”
YouTube		 Chubu
QA & VN Artist

"If you don't know how to do something, keep doing it! You'll figure it out eventually! :3"

💜 Meet Masuki-chan! 🐰

left

Hey, you idiot! Don't just stand there staring—get over here already!

I'm Masuki-chan, the mascot for this Database Designer thing you've got open. I've been waiting forever for someone to finally use it properly!

Designing databases doesn't have to be all boring and tedious like building stupid walls, y'know? With me around, you'll whip up perfect schemas, SQL files, docs, and even C# models in no time! Then you can stop wasting hours and actually focus on creating awesome stuff!

What’s In Here

Area Description
UI / Table Editor Visual table, column, and relationship editor
Templates Predefined schemas and table layouts
Validation System Naming rules, duplicate prevention, schema checks
Exporters SQL, documentation, and code-ready structures
Project System Organize schemas by project and schema namespace

Using Database Designer

You do not link it into your application.
You design, export, and implement however you want.

Typical workflow:

  1. Create or open a project
  2. Define schemas and tables
  3. Add columns, indexes, and relationships
  4. Validate structure
  5. Export SQL / docs / models
  • No runtime dependency
  • No forced framework
  • No surprises

License & Artwork

Code:
NON-AI MPL 2.0

This software is licensed under MPL 2.0 with the following exception:

You may not offer this software, or any derivative work, as a hosted service, SaaS, or online application to third parties without explicit written permission from the licensor

All output created by the software belongs solely to the user, including derivative work of the output. This does not grant rights to modify or redistribute the software itself except under the terms of this license.

Artwork:
© Kennaness — NO AI training. NO reproduction. NO exceptions.

Unauthorized use of the artwork — including copying, distribution, modification, or inclusion in any machine-learning training dataset — is strictly prohibited and will be prosecuted to the fullest extent of the law.