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bun.sh/docs/guides/ecosystem/tanstack-start.mdx
Lydia Hallie 6b70b71895 Add TanStack Start guide (#24572)
Adds a guide on how to build and deploy TanStack Start with Bun
2025-11-10 17:38:48 -08:00

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---
title: Use TanStack Start with Bun
sidebarTitle: TanStack Start with Bun
mode: center
---
[TanStack Start](https://tanstack.com/start/latest) is a full-stack framework powered by TanStack Router. It supports full-document SSR, streaming, server functions, bundling and more, powered by TanStack Router and [Vite](https://vite.dev/).
---
<Steps>
<Step title="Create a new TanStack Start app">
Use the interactive CLI to create a new TanStack Start app.
```sh terminal icon="terminal"
bun create @tanstack/start@latest my-tanstack-app
```
</Step>
<Step title="Start the dev server">
Change to the project directory and run the dev server with Bun.
```sh terminal icon="terminal"
cd my-tanstack-app
bun --bun run dev
```
This starts the Vite dev server with Bun.
</Step>
<Step title="Update scripts in package.json">
Modify the scripts field in your `package.json` by prefixing the Vite CLI commands with `bun --bun`. This ensures that Bun executes the Vite CLI for common tasks like `dev`, `build`, and `preview`.
```json package.json icon="file-json"
{
"scripts": {
"dev": "bun --bun vite dev", // [!code ++]
"build": "bun --bun vite build", // [!code ++]
"serve": "bun --bun vite preview" // [!code ++]
}
}
```
</Step>
</Steps>
---
## Hosting
<Steps>
<Step title="Add Nitro to your project">
Add [Nitro](https://nitro.build/) to your project. This tool allows you to deploy your TanStack Start app to different platforms.
```sh terminal icon="terminal"
bun add nitro
```
</Step>
<Step title={<span>Update your <code>vite.config.ts</code> file</span>}>
Update your `vite.config.ts` file to include the necessary plugins for TanStack Start with Bun.
```ts vite.config.ts icon="/icons/typescript.svg"
// other imports...
import { nitro } from "nitro/vite"; // [!code ++]
const config = defineConfig({
plugins: [
tanstackStart(),
nitro({ preset: "bun" }), // [!code ++]
// other plugins...
],
});
export default config;
```
<Note>
The `bun` preset is optional, but it configures the build output specifically for Bun's runtime.
</Note>
</Step>
<Step title="Update the start command">
Make sure `build` and `start` scripts are present in your `package.json` file:
```json package.json icon="file-json"
{
"scripts": {
"build": "bun --bun vite build", // [!code ++]
// The .output files are created by Nitro when you run `bun run build`.
// Not necessary when deploying to Vercel.
"start": "bun run .output/server/index.mjs" // [!code ++]
}
}
```
<Note>
You do **not** need the custom `start` script when deploying to Vercel.
</Note>
</Step>
<Step title="Deploy your app">
Check out one of our guides to deploy your app to a hosting provider.
<Note>
When deploying to Vercel, you can either add the `"bunVersion": "1.x"` to your `vercel.json` file, or add it to the `nitro` config in your `vite.config.ts` file:
<Warning>
Do **not** use the `bun` Nitro preset when deploying to Vercel.
</Warning>
```ts vite.config.ts icon="/icons/typescript.svg"
export default defineConfig({
plugins: [
tanstackStart(),
nitro({
preset: "bun", // [!code --]
vercel: { // [!code ++]
functions: { // [!code ++]
runtime: "bun1.x", // [!code ++]
}, // [!code ++]
}, // [!code ++]
}),
],
});
```
</Note>
<Columns cols={3}>
<Card title="Vercel" href="/guides/deployment/vercel" icon="/icons/ecosystem/vercel.svg">
Deploy on Vercel
</Card>
<Card title="Render" href="/guides/deployment/render" icon="/icons/ecosystem/render.svg">
Deploy on Render
</Card>
<Card title="Railway" href="/guides/deployment/railway" icon="/icons/ecosystem/railway.svg">
Deploy on Railway
</Card>
<Card title="DigitalOcean" href="/guides/deployment/digital-ocean" icon="/icons/ecosystem/digitalocean.svg">
Deploy on DigitalOcean
</Card>
<Card title="AWS Lambda" href="/guides/deployment/aws-lambda" icon="/icons/ecosystem/aws.svg">
Deploy on AWS Lambda
</Card>
<Card title="Google Cloud Run" href="/guides/deployment/google-cloud-run" icon="/icons/ecosystem/gcp.svg">
Deploy on Google Cloud Run
</Card>
</Columns>
</Step>
</Steps>
[→ See TanStack Start's official documentation](https://tanstack.com/start/latest/docs/framework/react/guide/hosting) for more information on hosting.