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SQL Schema Builder

Draft SQL tables, seed rows, and test queries against a temporary local SQLite database before copying the schema elsewhere.

Result table

Run a query to see rows here.

Run a query to see the result table.
Join map and table relationships1 JOIN

JOIN report

JOIN shape ready

JOIN clauses and schema relationships were parsed from the current query and schema.

Tables: users, posts

Foreign keys: 1

Schema and sample dataUsers, posts, and a JOIN query.
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Questions

Can this design a database schema visually?

The first version is text-first: edit CREATE TABLE statements, seed rows, and validate the schema by running queries locally.

Can I test foreign keys?

Yes. Use the preset schemas or write your own FOREIGN KEY definitions, then test related queries in the same workspace.

Should I use this output directly in production?

Use it as a local draft and learning workspace. Review database-specific syntax, indexes, migrations, and constraints before production use.

Does Utilumo upload my input?

No. Utilumo has no backend that could receive your input. Where a tool makes a request as part of its function, it goes directly from your browser to the destination you choose, never through Utilumo.

Do I need an account?

No. Utilumo tools are built to work without accounts or sign-in.