Kysely to Drizzle ORM Schema Converter

Transform compile-time Kysely database table interfaces into executable Drizzle ORM schemas across PostgreSQL, MySQL, and SQLite.

At a glance

Kysely to Drizzle ORM Schema Converter is a free developer utility that transforms Kysely TypeScript table interfaces into idiomatic Drizzle ORM schemas. It unwraps Generated and ColumnType modifiers into serials, autoincrements, and defaults across PostgreSQL, MySQL, and SQLite 100% client-side in browser memory.

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100% Client-Side Kysely to Drizzle ORM Schema Converter

Zero Server Uploads

Transform compile-time Kysely database table interfaces into executable Drizzle ORM schemas across PostgreSQL, MySQL, and SQLite directly in browser memory.

Local Sandbox
Presets:
0 lines | 0 chars

Why Use This Kysely to Drizzle ORM Schema Converter?

100% Client-Side Privacy: Your TypeScript interface code never leaves your browser.
Multi-Dialect Output: Transpiles to PostgreSQL (pgTable), MySQL (mysqlTable), or SQLite (sqliteTable).
Accurate Modifier Unwrapping: Converts Generated<T> into serials, autoincrements, or defaultNow().
Enum Union Conversion: Maps TypeScript string literal union types into first-class Drizzle enum declarations.
Zero External Dependencies: Runs entirely in browser memory with zero external telemetry or server overhead.

How to Use Kysely to Drizzle ORM Schema Converter

1

Input Kysely Interfaces

Paste your Kysely TypeScript table interfaces or choose one of the built-in presets.

2

Select Target Dialect

Choose your target SQL dialect: PostgreSQL, MySQL, or SQLite.

3

Copy or Download

Copy the generated Drizzle ORM schema code or download as a schema.ts file.

Kysely to Drizzle Conversion example

Demonstrates converting a Kysely UserTable interface into a PostgreSQL pgTable Drizzle schema definition with serial primary key and timestamp default.

Kysely TypeScript Interface Source 
export interface UserTable {
  id: Generated<number>;
  email: string;
  name: string | null;
  createdAt: Generated<Date>;
}

export interface Database {
  users: UserTable;
}
Drizzle ORM Schema (PostgreSQL) Processed 
import { integer, pgTable, serial, text, timestamp } from 'drizzle-orm/pg-core';

export const users = pgTable('users', {
  id: serial('id').primaryKey(),
  email: text('email').notNull(),
  name: text('name'),
  createdAt: timestamp('created_at').defaultNow().notNull(),
});

Technical Specifications & Engine Details

Technical specifications and engine details for Kysely to Drizzle ORM Schema Converter
Specification Details
Supported Formats TYPESCRIPT, TEXT → TYPESCRIPT, TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints Runs 100% client-side in browser memory. Performance and file limits are bounded by available local device RAM.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your code remains strictly on your local machine. Zero telemetry or server logging.

Frequently Asked Questions

Is Kysely to Drizzle ORM Schema Converter safe with proprietary database schemas?
Yes. All parsing and code generation executes 100% locally in your browser memory. No code is transmitted to any server or external service.
How does the converter handle Generated<T> and ColumnType modifiers?
Generated<number> on ID fields is mapped to serial (PostgreSQL) or autoincrement integer (MySQL/SQLite). Generated<Date> is mapped to timestamp with .defaultNow().notNull().
Does this generator require Node.js or any external npm package at runtime?
No. The generator runs completely client-side in vanilla JavaScript with zero external runtime dependencies.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .

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