Zod Schema to Kysely Interface Generator

Convert runtime Zod object schemas into type-safe Kysely TypeScript table interfaces with Generated annotations and Database registry.

At a glance

Zod to Kysely Interface Generator is a free developer utility that transforms runtime Zod validation schemas into type-safe Kysely TypeScript table interfaces. It accurately infers Generated wrappers for primary keys and defaults, maps nullable columns, and produces a root Database interface 100% client-side in browser memory.

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100% Client-Side Zod Schema to Kysely Interface Generator

Zero Server Uploads

Convert runtime Zod validation schemas into type-safe Kysely TypeScript table interfaces with Generated wrappers and root Database registry directly in browser memory.

Local Sandbox
Presets:
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Why Use This Zod Schema to Kysely Interface Generator?

100% Client-Side Privacy: Your schema definitions never leave your browser.
Smart Generated Unwrapping: Infers Generated<number> for autoincrementing IDs and Generated<string> for UUIDs.
Enum Union Generation: Transforms Zod enum schemas into clean exported TypeScript string union types.
Master Database Registry: Automatically generates a root Database interface with pluralized table property keys.
Zero External Dependencies: Runs entirely in browser memory with zero server telemetry or remote network latency.

How to Use Zod Schema to Kysely Interface Generator

1

Input Zod Schemas

Paste your Zod validation schemas or choose one of the built-in presets.

2

Configure Preferences

Choose interface suffix, date representation, or default wrapper settings.

3

Copy or Download

Copy the generated Kysely TypeScript interfaces or download as a .ts file.

Zod to Kysely Conversion example

Demonstrates converting a Zod userSchema into a Kysely UserTable interface with Generated modifiers and root Database registry.

Zod Validation Schema Source 
export const userSchema = z.object({
  id: z.number().int(),
  email: z.string().email(),
  name: z.string().nullable(),
  createdAt: z.date().default('now'),
});
Kysely TypeScript Interfaces Processed 
import type { Generated } from 'kysely';

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

export interface Database {
  users: UserTable;
}

Technical Specifications & Engine Details

Technical specifications and engine details for Zod Schema to Kysely Interface Generator
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 Zod to Kysely Interface Generator safe with proprietary 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 generator determine which fields get wrapped in Generated<T>?
Fields named id or ending in _id that are numbers or UUID strings, as well as any field using .default(...), are wrapped in Kysely's Generated<T> modifier.
Does this tool 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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