Schema3D
Schema3D is an open-source database visualization tool designed for 3D schema exploration and relationship mapping. It allows developers and teams to inspect SQL, T-SQL, Mermaid ER diagrams, and DrawDB JSON files as interactive 3D models directly within the browser. The platform supports shareable URL-based views and enables users to inspect tables, columns, primary keys, foreign keys, and complex table relationships without connecting to a live database instance.
Checked on Nov 2, 2026.
Alternative resources
An interactive database schema visualizer that parses SQL code to generate structural diagrams and entity relationship maps.
An open-source online database schema design and entity-relationship diagram tool that generates clean DDL scripts for major SQL dialects.
Online SQLite playground for executing SQL queries directly in the browser environment.