SQL to Prisma

What is SQL to Prisma?

SQL to Prisma converts SQL CREATE TABLE statements into Prisma schema model definitions. It maps SQL data types to Prisma field types, handles primary keys, foreign key relationships (including one-to-many and many-to-many), unique constraints, default values, and nullable columns. The tool generates relation fields with proper naming and supports PostgreSQL, MySQL, and SQLite dialect differences.

Backend developers adopting Prisma for existing databases, full-stack engineers setting up new projects from SQL designs, and database architects reviewing ORM mappings. The tool runs entirely in your browser — your data never leaves your device.

How to Use SQL to Prisma

1. Paste your SQL CREATE TABLE statements into the input editor
2. Select the SQL dialect — PostgreSQL, MySQL, or SQLite — for correct type mapping
3. Review the generated Prisma schema with model definitions and relation fields
4. Check that foreign key relationships are correctly represented as Prisma relations
5. Copy the Prisma schema to your schema.prisma file and run prisma generate

Common Use Cases

• Migrating an existing database to Prisma by converting the schema dump to Prisma models
• Creating Prisma models from SQL design scripts written during database planning
• Reverse-engineering a production database schema for use in a new Prisma-based project
• Converting SQL examples from tutorials into Prisma schema for learning and experimentation
• Generating initial Prisma models from database ERD tools that export CREATE TABLE SQL

Pro Tips

• PostgreSQL's SERIAL type maps to Prisma's @default(autoincrement()) — make sure your ID strategy matches between the SQL source and the generated Prisma model
• Many-to-many relationships through a junction table generate implicit many-to-many relations in Prisma — review these to decide if you want explicit or implicit relations
• Prisma requires a unique identifier on every model — if your SQL table lacks a primary key, you will need to add an @id field manually to the generated model

Why Use This Tool?

• Privacy-first: All processing happens locally in your browser. No data is transmitted to any server.
• No installation required: Works in any modern browser on desktop or mobile.
• Completely free: No account, no credit card, no usage caps.
• Fast and reliable: Powered by modern Web APIs for near-instant results.

Related Concepts

Learn more about related topics: Prisma schema, ORM, Database migration, Introspection.

Frequently Asked Questions