Data Architecture & Modeling Hub

Schema Architecture & Modeling Hub

Database engineering in your browser: SQL to ER diagrams, ERD to DDL, multi-dialect translation, ORM code generation (Prisma, Django, SQLAlchemy), automated data dictionaries, and schema diffing.

Dedicated SQL to ERD Tool →

100% Client-Side Privacy: Schema DDL and database structures never leave browser memory. Operations execute entirely in local browser tab memory.

Mermaid ERD → SQL DDL

Convert Mermaid `erDiagram` syntax directly to PostgreSQL, MySQL, or SQLite CREATE TABLE statements.

Dialect:

Mermaid erDiagram Input

Generated SQL DDL

-- Generated from a Mermaid erDiagram. Dialect: postgresql.
-- 3 statement(s) from 3 entities and 2 relationship(s).

CREATE TABLE "USER" (
  id INTEGER NOT NULL,
  email VARCHAR(255),
  name VARCHAR(255),
  PRIMARY KEY (id)
);

CREATE TABLE "ORDER" (
  id INTEGER NOT NULL,
  user_id INTEGER,
  total_amount NUMERIC(12,2),
  placed_at DATE,
  PRIMARY KEY (id),
  FOREIGN KEY (user_id) REFERENCES "USER" (id)
);

CREATE TABLE ORDER_ITEM (
  id INTEGER NOT NULL,
  order_id INTEGER,
  product_id INTEGER,
  quantity INTEGER,
  PRIMARY KEY (id),
  FOREIGN KEY (order_id) REFERENCES "ORDER" (id)
);

Chosen from where these tools sit in the catalogue — the same workbench, the same category, the same words. Nothing here measures what you or anyone else opened.

Schema Architecture & Modeling Hub

Mermaid ERD → SQL DDL

Next in this job