Free SQL→ER diagram tool, runs in the browser, nothing uploaded

# SQL to ER Diagram — Free Online ERD Generator from SQL Source: [https://sqltoerdiagram.com/](https://sqltoerdiagram.com/) ## SQL to ER Diagram — free online ERD generator: convert a SQL schema \(CREATE TABLE statements\) into an interactive entity\-relationship diagram in your browser\. Turn SQL into a diagram instantly, no signup\. SQL to ER Diagram ## Paste SQL, see the schema\. Drop your`CREATE TABLE`statements on the left\. Drag tables, scroll to zoom, double\-click to rename, export when done\. 100% local — your schema never leaves your browser\. No accounts, no uploads\. SQL to ER Diagram is a free, open\-source tool that converts a SQL schema into an interactive entity\-relationship diagram \(ERD\) right in your browser\. Paste your`CREATE TABLE`statements and instantly visualize tables, columns, primary keys, foreign keys and relationships\. Works with PostgreSQL, MySQL, SQLite and SQL Server\. Drag tables, auto\-arrange the layout, add notes, and export to PNG or SVG\. Nothing is uploaded — your schema stays on your machine\. ## Frequently asked questions ### How do I create an ER diagram from SQL? Paste your SQL`CREATE TABLE`statements into the editor and SQL to ER Diagram instantly renders an interactive entity\-relationship diagram\. Drag tables to arrange them, then export as PNG or SVG\. ### Which SQL dialects are supported? It parses standard`CREATE TABLE`and`ALTER TABLE`DDL and works with PostgreSQL, MySQL, SQLite and SQL Server syntax, including primary keys, foreign keys, unique and not\-null constraints\. ### Is it free? Yes\. SQL to ER Diagram is completely free and open source, with no account or sign\-up required\. ### Is my data private? Does my SQL get uploaded? Everything runs locally in your browser\. Your SQL schema is never uploaded to or stored on any server\. ### Can I export the diagram? Yes\. You can export a high\-resolution PNG or a vector SVG, save the full project as a file, or copy a shareable link that encodes the diagram in the URL\. ### Do I need to install anything? No installation needed\. It runs entirely in your web browser on both desktop and mobile\.