# No Rust engine (/docs/orm/v6/prisma-client/setup-and-configuration/no-rust-engine)

Location: ORM > v6 > Prisma Client > Setup and Configuration > No Rust engine

As of [v6.16.0](https://pris.ly/release/6.16.0), usage of Prisma ORM without [Rust engine](/orm/v6/more/internals/engines) binaries on PostgreSQL, CockroachDB, Neon, MySQL, PlanetScale, SQLite, D1 & MS SQL Server databases has been [Generally Available](/orm/v6/more/releases#generally-available-ga).

This page gives an overview of how to use this version of Prisma ORM.

Prisma ORM without Rust engines [#prisma-orm-without-rust-engines]

The main technical differences if you're using Prisma ORM without a Rust engine are:

* no `binaryTargets` field on the `generator` block
* no query engine binary that's downloaded into the directory with your generated Prisma Client
* `engineType` needs to be set to `"client"` on the `generator` block
* required usage of [driver adapters](/orm/v6/overview/databases/database-drivers#driver-adapters) for database connection management

> [!WARNING]
> The Rust-free version of Prisma ORM has been thoroughly tested with the `prisma-client` generator (see below), not with `prisma-client-js`. Use the old generator at your discretion.

Usage [#usage]

Prerequisites [#prerequisites]

* Prisma ORM v6.15.0 (or later)

1. Set engineType on the generator block [#1-set-enginetype-on-the-generator-block]

```prisma title="schema.prisma"
generator client {
  provider        = "prisma-client" // or `prisma-client-js`
  output          = "../generated/prisma"
  engineType      = "client" // enable Prisma ORM without Rust
}
```

2. Re-generate Prisma Client [#2-re-generate-prisma-client]

To make the configuration take effect, you need re-generate Prisma Client:

  

#### npm

```bash
npx prisma generate
```

#### pnpm

```bash
pnpm dlx prisma generate
```

#### yarn

```bash
yarn dlx prisma generate
```

#### bun

```bash
bunx --bun prisma generate
```

3. Install the driver adapter [#3-install-the-driver-adapter]

Depending on the database you use, you need to install a different driver adapter library:

  

#### PostgreSQL

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-pg
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-pg
```

#### yarn

```bash
yarn add @prisma/adapter-pg
```

#### bun

```bash
bun add @prisma/adapter-pg
```
    
  </CodeBlockTab>

#### SQLite

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-better-sqlite3
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-better-sqlite3
```

#### yarn

```bash
yarn add @prisma/adapter-better-sqlite3
```

#### bun

```bash
bun add @prisma/adapter-better-sqlite3
```
    
  </CodeBlockTab>

#### D1

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-d1
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-d1
```

#### yarn

```bash
yarn add @prisma/adapter-d1
```

#### bun

```bash
bun add @prisma/adapter-d1
```
    
  </CodeBlockTab>

#### MySQL/MariaDB

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-mariadb
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-mariadb
```

#### yarn

```bash
yarn add @prisma/adapter-mariadb
```

#### bun

```bash
bun add @prisma/adapter-mariadb
```
    
  </CodeBlockTab>

#### PlanetScale

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-planetscale
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-planetscale
```

#### yarn

```bash
yarn add @prisma/adapter-planetscale
```

#### bun

```bash
bun add @prisma/adapter-planetscale
```
    
  </CodeBlockTab>

#### MSSQL

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-mssql
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-mssql
```

#### yarn

```bash
yarn add @prisma/adapter-mssql
```

#### bun

```bash
bun add @prisma/adapter-mssql
```
    
  </CodeBlockTab>

#### CockroachDB

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-pg
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-pg
```

#### yarn

```bash
yarn add @prisma/adapter-pg
```

#### bun

```bash
bun add @prisma/adapter-pg
```
    
  </CodeBlockTab>

#### Neon Serverless

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-neon
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-neon
```

#### yarn

```bash
yarn add @prisma/adapter-neon
```

#### bun

```bash
bun add @prisma/adapter-neon
```
    
  </CodeBlockTab>

4. Instantiate Prisma Client [#4-instantiate-prisma-client]

Finally, instantiate Prisma Client which you can do using the driver adapter and the connection URL for the database instance you're using:

  

#### PostgreSQL

```typescript
import { PrismaPg } from '@prisma/adapter-pg'
import { PrismaClient } from '../generated/prisma/client'

const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter })
```

#### SQLite

```typescript
import { PrismaBetterSqlite3 } from '@prisma/adapter-better-sqlite3';
import { PrismaClient } from '../generated/prisma/client';

const adapter = new PrismaBetterSqlite3({ url: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter });
```

#### D1

```typescript
import { PrismaClient } from '../generated/prisma/client'
import { PrismaD1 } from '@prisma/adapter-d1'

export interface Env {
  DB: D1Database
}

export default {
  async fetch(
    request: Request,
    env: Env,
    ctx: ExecutionContext
  ): Promise<Response> {
    const adapter = new PrismaD1(env.DB)
    const prisma = new PrismaClient({ adapter })
    // …
    // ... query your DB
  },
}
```

#### MySQL/MariaDB

```typescript
import { PrismaMariaDb } from '@prisma/adapter-mariadb';
import { PrismaClient } from '../generated/prisma/client';

const adapter = new PrismaMariaDb({
host: "localhost",
port: 3306,
connectionLimit: 5
});
const prisma = new PrismaClient({ adapter });
```

#### PlanetScale

```typescript
import { PrismaPlanetScale } from '@prisma/adapter-planetscale'
import { PrismaClient } from '../generated/prisma/client'
import { fetch as undiciFetch } from 'undici'

const adapter = new PrismaPlanetScale({ url: process.env.DATABASE_URL, fetch: undiciFetch })
const prisma = new PrismaClient({ adapter })
```

#### MSSQL

```typescript
import { PrismaMssql } from '@prisma/adapter-mssql';
import { PrismaClient } from '../generated/prisma/client';

const sqlConfig = {
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
server: process.env.HOST,
pool: {
max: 10,
min: 0,
idleTimeoutMillis: 30000
},
options: {
encrypt: true, // for azure
trustServerCertificate: false // change to true for local dev / self-signed certs
}
}

const adapter = new PrismaMssql(sqlConfig)
const prisma = new PrismaClient({ adapter });
```

#### CockroachDB

```typescript
import { PrismaPg } from '@prisma/adapter-pg'
import { PrismaClient } from '../generated/prisma/client'

const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter })
```

#### Neon Serverless

```typescript
import { PrismaClient } from '../generated/prisma/client'
import { PrismaNeon } from '@prisma/adapter-neon'
import dotenv from 'dotenv'

dotenv.config()
const connectionString = `${process.env.DATABASE_URL}`

const adapter = new PrismaNeon({ connectionString })
const prisma = new PrismaClient({ adapter })
```

5. Query your database [#5-query-your-database]

If you went through the previous steps, you can query your database as you're used to with Prisma Client. No other changes are needed.

Usage with Prisma Accelerate or Prisma Postgres [#usage-with-prisma-accelerate-or-prisma-postgres]

When using the Rust-free version of Prisma ORM with [Prisma Accelerate](/accelerate) or [Prisma Postgres](/postgres), you **should not** use driver adapters. Instead, you can directly instantiate Prisma Client with the appropriate extension.

1. Set engineType on the generator block [#1-set-enginetype-on-the-generator-block-1]

```prisma title="schema.prisma"
generator client {
  provider        = "prisma-client" // or `prisma-client-js`
  output          = "../generated/prisma"
  engineType      = "client" // enable Prisma ORM without Rust
}
```

2. Re-generate Prisma Client [#2-re-generate-prisma-client-1]

To make the configuration take effect, you need re-generate Prisma Client:

  

#### npm

```bash
npx prisma generate
```

#### pnpm

```bash
pnpm dlx prisma generate
```

#### yarn

```bash
yarn dlx prisma generate
```

#### bun

```bash
bunx --bun prisma generate
```

3. Instantiate Prisma Client with Accelerate [#3-instantiate-prisma-client-with-accelerate]

Import and instantiate Prisma Client with the Accelerate extension:

```typescript
import { PrismaClient } from "../generated/prisma/client";
import { withAccelerate } from "@prisma/extension-accelerate";

const prisma = new PrismaClient().$extends(withAccelerate());
```

4. Query your database [#4-query-your-database]

If you went through the previous steps, you can query your database as you're used to with Prisma Client. No other changes are needed.

Usage with older versions (Preview) [#usage-with-older-versions-preview]

The Rust-free version of Prisma ORM has been in Preview from versions v6.7.0 to v.6.14.0. Expand below if you're using any of these versions and are unable to upgrade to the latest one.

<details>
  <summary>
    Expand to see instructions for Prisma ORM v6.7.0 to v6.14.0
  </summary>

  Prerequisites [#prerequisites-1]

  * Any Prisma ORM version between 6.7.0 and 6.14.0

  1. Set feature flags [#1-set-feature-flags]

  Usage of the new architecture requires the `driverAdapters` and `queryCompiler` feature flags to be set:

  ```prisma title="schema.prisma"
  generator client {
    provider        = "prisma-client"
    previewFeatures = ["queryCompiler", "driverAdapters"]
    output          = "../generated/prisma"
  }
  ```

  2. Re-generate Prisma Client [#2-re-generate-prisma-client-2]

  To make the feature flags take effect, you need re-generate Prisma Client:

  
    

#### npm

```bash
npx prisma generate
```

#### pnpm

```bash
pnpm dlx prisma generate
```

#### yarn

```bash
yarn dlx prisma generate
```

#### bun

```bash
bunx --bun prisma generate
```
  

  3. Install the driver adapter [#3-install-the-driver-adapter-1]

  Depending on the database you use, you need to install a different driver adapter library:

  
    

#### PostgreSQL

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-pg
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-pg
```

#### yarn

```bash
yarn add @prisma/adapter-pg
```

#### bun

```bash
bun add @prisma/adapter-pg
```
      
    </CodeBlockTab>

#### SQLite

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-better-sqlite3
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-better-sqlite3
```

#### yarn

```bash
yarn add @prisma/adapter-better-sqlite3
```

#### bun

```bash
bun add @prisma/adapter-better-sqlite3
```
      
    </CodeBlockTab>

#### D1

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-d1
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-d1
```

#### yarn

```bash
yarn add @prisma/adapter-d1
```

#### bun

```bash
bun add @prisma/adapter-d1
```
      
    </CodeBlockTab>

#### MySQL/MariaDB

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-mariadb
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-mariadb
```

#### yarn

```bash
yarn add @prisma/adapter-mariadb
```

#### bun

```bash
bun add @prisma/adapter-mariadb
```
      
    </CodeBlockTab>

#### PlanetScale

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-planetscale
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-planetscale
```

#### yarn

```bash
yarn add @prisma/adapter-planetscale
```

#### bun

```bash
bun add @prisma/adapter-planetscale
```
      
    </CodeBlockTab>

#### MSSQL

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-mssql
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-mssql
```

#### yarn

```bash
yarn add @prisma/adapter-mssql
```

#### bun

```bash
bun add @prisma/adapter-mssql
```
      
    </CodeBlockTab>

#### CockroachDB

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-pg
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-pg
```

#### yarn

```bash
yarn add @prisma/adapter-pg
```

#### bun

```bash
bun add @prisma/adapter-pg
```
      
    </CodeBlockTab>

#### Neon Serverless

  

  <CodeBlockTab value="npm">
    ```bash
    npm install @prisma/adapter-neon
    ```

#### pnpm

```bash
pnpm add @prisma/adapter-neon
```

#### yarn

```bash
yarn add @prisma/adapter-neon
```

#### bun

```bash
bun add @prisma/adapter-neon
```
      
    </CodeBlockTab>
  

  4. Instantiate Prisma Client [#4-instantiate-prisma-client-1]

  Finally, you need to instantiate Prisma Client which you can do using the driver adapter and the connection URL for the database instance you're using.

  
    

#### PostgreSQL

```typescript
import { PrismaPg } from '@prisma/adapter-pg'
import { PrismaClient } from '../generated/prisma/client'

const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter })
```

#### SQLite

```typescript
import { PrismaBetterSqlite3 } from '@prisma/adapter-better-sqlite3';
import { PrismaClient } from '../generated/prisma/client';

const adapter = new PrismaBetterSqlite3({ url: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter });
```

#### D1

```typescript
import { PrismaClient } from '../generated/prisma/client'
import { PrismaD1 } from '@prisma/adapter-d1'

export interface Env {
  DB: D1Database
}

export default {
  async fetch(
    request: Request,
    env: Env,
    ctx: ExecutionContext
  ): Promise<Response> {
    const adapter = new PrismaD1(env.DB)
    const prisma = new PrismaClient({ adapter })

    // ... query your DB

},
}
```

#### MySQL/MariaDB

```typescript
import { PrismaMariaDb } from '@prisma/adapter-mariadb';
import { PrismaClient } from '../generated/prisma/client';

const adapter = new PrismaMariaDb({
  host: "localhost",
  port: 3306,
  connectionLimit: 5
});
const prisma = new PrismaClient({ adapter });
```

#### PlanetScale

```typescript
import { PrismaPlanetScale } from '@prisma/adapter-planetscale'
import { PrismaClient } from '../generated/prisma/client'
import { fetch as undiciFetch } from 'undici'

const adapter = new PrismaPlanetScale({ url: process.env.DATABASE_URL, fetch: undiciFetch })
const prisma = new PrismaClient({ adapter })
```

#### MSSQL

```typescript
import { PrismaMssql } from '@prisma/adapter-mssql';
import { PrismaClient } from '../generated/prisma/client';

const sqlConfig = {
  user: process.env.DB_USER,
  password: process.env.DB_PASSWORD,
  database: process.env.DB_NAME,
  server: process.env.HOST,
  pool: {
    max: 10,
    min: 0,
    idleTimeoutMillis: 30000
  },
  options: {
    encrypt: true, // for azure
    trustServerCertificate: false // change to true for local dev / self-signed certs
  }
}

const adapter = new PrismaMssql(sqlConfig)
const prisma = new PrismaClient({ adapter });
```

#### CockroachDB

```typescript
import { PrismaPg } from '@prisma/adapter-pg'
import { PrismaClient } from '../generated/prisma/client'

const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL })
const prisma = new PrismaClient({ adapter })
```

#### Neon Serverless

```typescript
import { PrismaClient } from '../generated/prisma/client'
import { PrismaNeon } from '@prisma/adapter-neon'
import dotenv from 'dotenv'

dotenv.config()
const connectionString = `${process.env.DATABASE_URL}`

const adapter = new PrismaNeon({ connectionString })
const prisma = new PrismaClient({ adapter })
```
  

  5. Query your database [#5-query-your-database-1]

  If you went through the previous steps, you can query your database as you're used to with Prisma Client. No other changes are needed.
</details>

## Related pages

- [`Configuring error formatting`](https://www.prisma.io/docs/orm/v6/prisma-client/setup-and-configuration/error-formatting): This page explains how to configure the formatting of errors when using Prisma Client.
- [`Custom model and field names`](https://www.prisma.io/docs/orm/v6/prisma-client/setup-and-configuration/custom-model-and-field-names): Learn how you can decouple the naming of Prisma models from database tables to improve the ergonomics of the generated Prisma Client API.
- [`Database connections`](https://www.prisma.io/docs/orm/v6/prisma-client/setup-and-configuration/databases-connections): Databases connections
- [`Database polyfills`](https://www.prisma.io/docs/orm/v6/prisma-client/setup-and-configuration/database-polyfills): Prisma Client provides features that are not achievable with relational databases. These features are referred to as "polyfills" and explained on this page.
- [`Generating Prisma Client`](https://www.prisma.io/docs/orm/v6/prisma-client/setup-and-configuration/generating-prisma-client): This page explains how to generate Prisma Client. It also provides additional context on the generated client, typical workflows and Node.js configuration.