Why convert Prisma schemas to standalone TypeScript interfaces instead of using @prisma/client?

Prisma Client generates heavy runtime code with native query engine binaries. Generating pure TypeScript interfaces gives you zero runtime overhead, minimal bundle size, and effortless cross-platform sharing with browser, mobile, and serverless environments.

How are Prisma scalar types mapped to TypeScript?

Prisma String maps to string, Int and Float map to number, Boolean to boolean, BigInt to bigint, DateTime to Date (or string), Decimal to number | string, and Json to Record .

Can I generate string union types instead of native TypeScript enums?

Yes. You can configure enum generation to output native TS enums, const objects (as const), or pure string union types ('ADMIN' | 'USER').

Are database relation fields supported in generated interfaces?

Yes. Relations (such as 1-to-1, 1-to-many, and many-to-many model references) can be fully included, made optional, or omitted entirely for flat record typing.

Is my schema file uploaded or processed on external servers?

No. The entire conversion process runs 100% in your local browser using client-side AST token parsing. Your database schema and data models remain completely private.

PRISMA 3 / 4 / 5 / 6 COMPATIBLE• Standalone Zero Runtime

Prisma Schema to TypeScript Interfaces & Types Generator

Extract Prisma schema models, enums, optional fields, and relations into standalone TypeScript interfaces without Prisma Client runtime.

Presets:

Prisma Schema Inputschema.prisma

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

generator client {
  provider = "prisma-client-js"
}

enum Role {
  CUSTOMER
  VENDOR
  ADMIN
}

enum OrderStatus {
  PENDING
  PROCESSING
  SHIPPED
  DELIVERED
  CANCELLED
}

/// User customer or merchant account
model User {
  id            String       @id @default(uuid())
  email         String       @unique
  name          String?
  role          Role         @default(CUSTOMER)
  walletBalance Decimal      @default(0.00)
  createdAt     DateTime     @default(now())
  updatedAt     DateTime     @updatedAt
  orders        Order[]
  profile       UserProfile?

@@map("users")
}

model UserProfile {
  id        String   @id @default(cuid())
  userId    String   @unique
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  phone     String?
  address   String?
  city      String?
  country   String   @default("US")
  metadata  Json?
}

model Product {
  id          Int          @id @default(autoincrement())
  sku         String       @unique
  title       String
  description String?
  price       Decimal
  inventory   Int          @default(0)
  isPublished Boolean      @default(true)
  categoryId  Int?
  category    Category?    @relation(fields: [categoryId], references: [id])
  orderItems  OrderItem[]
  createdAt   DateTime     @default(now())

@@index([categoryId])
  @@map("products")
}

model Category {
  id          Int       @id @default(autoincrement())
  slug        String    @unique
  name        String
  products    Product[]
}

model Order {
  id          String      @id @default(uuid())
  orderNumber String      @unique
  userId      String
  user        User        @relation(fields: [userId], references: [id])
  status      OrderStatus @default(PENDING)
  totalAmount Decimal
  items       OrderItem[]
  createdAt   DateTime    @default(now())
  updatedAt   DateTime    @updatedAt

@@index([userId])
  @@map("orders")
}

model OrderItem {
  id        Int     @id @default(autoincrement())
  orderId   String
  order     Order   @relation(fields: [orderId], references: [id], onDelete: Cascade)
  productId Int
  product   Product @relation(fields: [productId], references: [id])
  quantity  Int     @default(1)
  unitPrice Decimal

@@unique([orderId, productId])
}

Lines: 99•Chars: 2325•Size: 2.3 KB

Models: 6Enums: 2Relations: 10

/**
 * Standalone TypeScript Definitions
 * Generated from Prisma Schema without Prisma Client runtime
 * Generated via ToolsAA Prisma-to-TypeScript Engine
 */

// ==========================================
// Enums
// ==========================================

export enum Role {
  CUSTOMER = 'CUSTOMER',
  VENDOR = 'VENDOR',
  ADMIN = 'ADMIN',
}

export enum OrderStatus {
  PENDING = 'PENDING',
  PROCESSING = 'PROCESSING',
  SHIPPED = 'SHIPPED',
  DELIVERED = 'DELIVERED',
  CANCELLED = 'CANCELLED',
}

// ==========================================
// Models & Types
// ==========================================

/**
 * User customer or merchant account
 * @table users
 * @id [id]
 */
export interface User {
  id: string; // @id @default(uuid()
  email: string; // @unique
  name?: string | null;
  role: Role; // @default(CUSTOMER)
  walletBalance: number; // @default(0.00)
  createdAt: Date; // @default(now()
  updatedAt: Date; // @updatedAt
  orders?: Order[]; // @relation
  profile?: UserProfile | null; // @relation
}

/**
 * @id [id]
 */
export interface UserProfile {
  id: string; // @id @default(cuid()
  userId: string; // @unique
  user?: User; // @relation
  phone?: string | null;
  address?: string | null;
  city?: string | null;
  country: string; // @default("US")
  metadata?: Record<string, unknown> | null;
}

/**
 * @table products
 * @id [id]
 */
export interface Product {
  id: number; // @id @default(autoincrement()
  sku: string; // @unique
  title: string;
  description?: string | null;
  price: number;
  inventory: number; // @default(0)
  isPublished: boolean; // @default(true)
  categoryId?: number | null;
  category?: Category | null; // @relation
  orderItems?: OrderItem[]; // @relation
  createdAt: Date; // @default(now()
}

/**
 * @id [id]
 */
export interface Category {
  id: number; // @id @default(autoincrement()
  slug: string; // @unique
  name: string;
  products?: Product[]; // @relation
}

/**
 * @table orders
 * @id [id]
 */
export interface Order {
  id: string; // @id @default(uuid()
  orderNumber: string; // @unique
  userId: string;
  user?: User; // @relation
  status: OrderStatus; // @default(PENDING)
  totalAmount: number;
  items?: OrderItem[]; // @relation
  createdAt: Date; // @default(now()
  updatedAt: Date; // @updatedAt
}

/**
 * @id [id]
 */
export interface OrderItem {
  id: number; // @id @default(autoincrement()
  orderId: string;
  order?: Order; // @relation
  productId: number;
  product?: Product; // @relation
  quantity: number; // @default(1)
  unitPrice: number;
}

Output: 116 lines•Size:: 2.5 KB•Mode: typescript

Zero Prisma Runtime Dependency

Prisma Models

Extracted data models & enums

TypeScript Types

116

Generated pure interfaces & helpers

Zero Client Runtime

0 kB

Zero dependencies or npm binaries

Pure In-Browser Lexer & Parser

Parses models, enums, composite attributes (@@id, @@unique, @@map), defaults, and relation cascades entirely on the client without Node.js or Prisma CLI.

100% Client-Side Privacy Shield

Your database schema and internal architecture definitions never leave your browser. Zero server uploads, tracking, or network round-trips.

Universal TypeScript & Zod Output

Instantly generate clean types for frontend web apps, serverless functions, shared monorepos, and isomorphic Zod runtime validation schemas.

Prisma Schema to TypeScript Interfaces & Types Generator

Pure In-Browser Lexer & Parser

100% Client-Side Privacy Shield

Universal TypeScript & Zod Output

Prisma Schema to TypeScript Interfaces & Types Generator — Reference Guide

Key Parameters & Controls

Pro Tips & Best Practices

Zero-Runtime Monorepo Sharing

Prisma '?' fields represent SQL

Isolated DTO Generation

Common Gotchas & Troubleshooting

Unsupported Prisma attributes causing parsing errors

Circular relation references causing deep TypeScript recursion

Custom Json and Decimal scalar typing defaults

Frequently Asked Questions

Related Tools & Utilities