Database Schema & Entity Relationship (ER) Table Maker

Document relational database tables, columns, primary and foreign keys, and indexes in clean GitHub Flavored Markdown.

Presets:

Table Definition

Columns (4)

Generated Schema Markdown
Complete Guide & Overview

Database Schema & Entity Relationship (ER) Table Maker

Document relational database tables, columns, primary and foreign keys, and indexes in clean GitHub Flavored Markdown.

How to Use the Database Schema & Entity Relationship (ER) Table Maker

1

Input Content

Paste or compose your markdown or source data into the input editor.

2

Customize Settings

Select formatting options, syntax modes, or display options.

3

Copy or Download

Copy the processed output to your clipboard or download the generated file.

Key Features & Capabilities

Tabbed multi-table schema manager with column attributes, primary keys, and foreign keys.
Clear visual badges for 🔑 PK, 🔗 FK references, and 🔴 NOT NULL constraints.
Table index listings for quick performance optimization audits.
Zero credentials or database connections required — 100% private and client-side.

Frequently Asked Questions

Why use Markdown tables for database schema documentation?

Markdown schema tables can be versioned directly inside git repositories alongside application migration files, ensuring that database schema contracts are clearly visible in pull requests and architectural reviews.

How are Primary Keys and Foreign Keys designated?

Primary keys are marked with a 🔑 **PK** badge and foreign keys are marked with 🔗 *FK* alongside their target reference pointer (e.g. `users(id)`).

Is any database connection or credential required?

No. This generator is completely offline and client-side. You never provide database credentials or connect to any live database instance.