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.
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 a
diagram — an interactive entity-relationship diagram (ERD) — right in your browser.
Paste your CREATE TABLE statements or raw DDL and instantly visualize tables,
columns, primary keys, foreign keys and relationships. Use it as a SQL diagram
generator, a SQL schema visualizer, or a SQL-to-ERD
converter — it works with PostgreSQL, MySQL, SQLite, SQL Server, Oracle, MariaDB,
Snowflake and BigQuery. Drag tables, auto-arrange the layout, add notes, and export to PNG,
SVG, Mermaid, DBML or PlantUML. Nothing is uploaded — your schema stays on your machine. It
also reads Prisma schemas, DBML, Mermaid, SQLAlchemy and Sequelize.
It's part of yourbrowsercandoit.com,
a collection of free tools that run entirely in your browser — nothing uploaded.
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.
Paste your SQL CREATE TABLE statements or DDL and the tool instantly converts
them into an interactive diagram you can drag, arrange and export to PNG, SVG, Mermaid, DBML
or PlantUML — a free online SQL-to-diagram converter, no signup.
Yes. It visualizes any SQL database schema as an entity-relationship diagram — every table, column, key and foreign-key relationship — and works with PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, Snowflake and BigQuery.
It parses standard CREATE TABLE and ALTER TABLE DDL and works
with PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle, Snowflake and BigQuery syntax,
including primary keys, foreign keys, unique and not-null constraints.
Yes. SQL to ER Diagram is completely free and open source, with no account or sign-up required.
Everything runs locally in your browser. Your SQL schema is never uploaded to or stored on any server.
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.
No installation needed. It runs entirely in your web browser on both desktop and mobile.