What is Prisma and Zod?

Prisma is an ORM (Object-Relational Mapping) tool that uses a schema file to define your database structure with models, fields, and relationships. Zod is a TypeScript-first schema validation library that lets you define runtime type validators. Converting Prisma schemas to Zod schemas allows you to reuse your database model definitions for input validation, ensuring consistency between your database structure and validation logic throughout your application.

Tool description

This tool automatically converts Prisma schema definitions into Zod validation schemas. It parses your Prisma models, enums, and field types, then generates corresponding Zod schemas with proper type mappings. The tool handles optional fields, arrays, and special Prisma types, creating TypeScript-ready validation schemas that mirror your database structure.

Features

  • Automatic Type Mapping: Converts Prisma types (String, Int, DateTime, etc.) to corresponding Zod validators
  • Enum Support: Generates Zod enum schemas from Prisma enum definitions
  • Array Handling: Properly converts Prisma list fields to Zod array validators

Supported Type Mappings

  • String → z.string()
  • Int, Float, Decimal → z.number()
  • Boolean → z.boolean()
  • DateTime → z.date()
  • Json → z.record(z.any())
  • Bytes → z.instanceof(Buffer)
  • BigInt → z.bigint()
  • Custom types/enums → z.lazy(() => TypeSchema)
  • Lists → z.array()
  • Optional fields → .optional()