What is SchemaShift?
SchemaShift is a free, browser-based SQL schema converter that instantly transforms any SQL DDL into your preferred ORM or schema format. Whether you need to convert PostgreSQL to Prisma schema, generate TypeORM entities from MySQL, create Drizzle ORM table definitions, or produce Zod validation schemas from your database structure — SchemaShift handles it all in seconds with zero setup, no login, and no data sent to any server.
Built for developers who are tired of manually rewriting database schemas when switching ORMs or adding validation layers to existing projects, SchemaShift is the fastest free SQL schema converter online.
Why Convert SQL Schemas Manually When You Don't Have To?
Writing ORM models by hand from existing SQL schemas is one of the most tedious and error-prone tasks in backend development. A single database with 20 tables can take hours to convert manually to Prisma or TypeORM — and mistakes in type mapping or relationship definitions cause runtime errors that are hard to debug.
SchemaShift eliminates this entirely. Paste your CREATE TABLE statements and get production-ready ORM code in under a second. Switch between output formats instantly to see how the same schema translates across different tools.
Supported SQL Schema Conversions
SQL to Prisma Schema Converter
Convert any PostgreSQL or MySQL schema to a valid Prisma schema file. SchemaShift generates correct Prisma model definitions including @id, @unique, @default, @relation decorators, nullable fields with ?, and proper Prisma scalar types (String, Int, Boolean, DateTime, Json). The output is a ready-to-use schema.prisma file compatible with Prisma Client and Prisma Migrate.
SQL to TypeORM Entity Generator
Generate TypeORM entity classes with full decorator syntax from any SQL DDL. SchemaShift produces @Entity, @PrimaryGeneratedColumn, @Column, @ManyToOne, and @OneToMany decorators automatically based on your table structure and foreign key relationships. The output is ready to drop into any TypeORM project with TypeScript.
SQL to Drizzle ORM Converter
Convert SQL schemas to Drizzle ORM table definitions using the correct pg-core, mysql-core, or sqlite-core imports. SchemaShift generates serial, varchar, boolean, timestamp, and other Drizzle column types with proper chaining of .primaryKey(), .notNull(), .unique(), and .defaultNow() modifiers.
SQL to Mongoose Schema Generator
Transform relational SQL table definitions into Mongoose schemas for MongoDB. SchemaShift generates Schema definitions with correct type mappings, required fields, unique constraints, and default values — plus TypeScript interfaces using the Document pattern.
SQL to Zod Schema Converter
Generate Zod validation schemas directly from SQL DDL. SchemaShift maps SQL column types and constraints to the correct Zod validators including z.string(), z.number().int(), z.boolean(), z.date(), z.nullable(), and z.optional(). The output includes type inference using z.infer for full TypeScript compatibility.
SQL to TypeScript Types Generator
Generate clean TypeScript interfaces and types from SQL schemas. SchemaShift produces correctly typed interfaces with nullable types (string | null), optional properties, and proper Date handling — compatible with any TypeScript project regardless of ORM choice.
SQL to Sequelize Model Generator
Convert SQL CREATE TABLE statements to Sequelize model definitions with DataTypes mapping, allowNull, unique, defaultValue, and primaryKey configuration. Output supports both JavaScript and TypeScript Sequelize patterns.
SQL to MongoDB Schema Converter
Generate MongoDB collection validation schemas in JSON Schema format from SQL DDL. SchemaShift produces $jsonSchema validators with correct bsonType mappings and required field arrays for use with MongoDB's built-in schema validation.
How to Use SchemaShift
- Select your target output format from the format selector (Prisma, TypeORM, Drizzle, etc.)
- Paste your SQL CREATE TABLE statements into the input area
- Click "Convert Schema →"
- Review the generated code in the output panel
- Copy to clipboard or download as a file
- Switch to a different target format to instantly re-convert without re-pasting your SQL
What SQL Syntax Does SchemaShift Support?
SchemaShift supports standard SQL DDL syntax from the most commonly used relational databases:
- PostgreSQL — including SERIAL, BIGSERIAL, UUID, JSONB, TIMESTAMPTZ, and array types
- MySQL and MariaDB — including AUTO_INCREMENT, TINYINT(1), ENUM, and MySQL-specific defaults
- SQLite — basic DDL syntax
- Standard SQL — ANSI SQL CREATE TABLE syntax
Multiple tables in a single input are fully supported. SchemaShift parses all CREATE TABLE blocks and converts them together, preserving foreign key relationships across tables.
Is SchemaShift Free?
Yes. SchemaShift is completely free with no usage limits, no account required, and no premium tier. Convert unlimited schemas at no cost.
Is My Database Schema Private?
Yes. SchemaShift runs entirely in your browser. Your SQL schema is never sent to any server, logged, or stored anywhere. All conversion logic runs client-side in JavaScript. Your database structure stays on your device at all times — making SchemaShift safe to use with proprietary or production database schemas.
Frequently Asked Questions
Can SchemaShift handle multiple tables at once?
Yes. Paste as many CREATE TABLE statements as you need. SchemaShift parses all of them and generates the complete output for all tables in a single conversion.
Does SchemaShift handle foreign key relationships?
Yes. FOREIGN KEY and REFERENCES constraints are detected and converted to the appropriate relationship syntax for each target format — @relation in Prisma, @ManyToOne in TypeORM, ref in Mongoose, and so on.
What if my SQL has comments or non-standard formatting?
SchemaShift strips SQL comments (both -- single line and /* block */ style) before parsing and handles varied whitespace and formatting. Most standard SQL DDL exports from tools like pgAdmin, MySQL Workbench, and DBeaver will parse correctly.
Can I use the output directly in my project?
The generated code is production-ready as a starting point. For complex schemas with custom types, enums, or advanced relationships, minor adjustments may be needed. Always review the output before committing to production.
Does SchemaShift support PostgreSQL enums?
Basic ENUM type detection is supported. For PostgreSQL CREATE TYPE ... AS ENUM statements, partial support is available with full support planned in upcoming updates.
What's the difference between Prisma and Drizzle output?
Prisma output generates a schema.prisma file using Prisma's proprietary schema language. Drizzle output generates TypeScript code using Drizzle ORM's table builder functions — which is type-safe and doesn't require a separate schema file. Both are valid approaches for modern TypeScript backend development.