--- description: Deploy a Next.js application to Cloudflare Workers with the OpenNext adapter. title: OpenNext adapter image: https://developers.cloudflare.com/og-docs.png --- [Skip to content](#main-content) > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/workers/llms.txt > Use this file to discover all available pages before exploring further. # OpenNext adapter Last updated Aug 1, 2026|Copy as Markdown|[View as Markdown](https://4f1c5cd2.previews.developers.cloudflare.com/workers/framework-guides/web-apps/opennext/index.md)|[Agent setup](https://4f1c5cd2.previews.developers.cloudflare.com/agent-setup/) Recommended path Cloudflare recommends [vinext](https://4f1c5cd2.previews.developers.cloudflare.com/workers/framework-guides/web-apps/nextjs/) instead of OpenNext for new Next.js applications on Cloudflare Workers. Use this guide to maintain an existing OpenNext application. Migrate to vinext when compatibility allows. [OpenNext ↗](https://opennext.js.org/) adapts the output of `next build` so it can run on different platforms, including Cloudflare Workers. ## Supported features Most Next.js features are supported by the Cloudflare OpenNext adapter: | Feature | Cloudflare OpenNext adapter | Notes | | ------------------------------------- | --------------------------- | --------------------------------------------------------------------------------------------------- | | App Router | Supported | | | Pages Router | Supported | | | Route Handlers | Supported | | | React Server Components | Supported | | | Static Site Generation (SSG) | Supported | | | Server-Side Rendering (SSR) | Supported | | | Incremental Static Regeneration (ISR) | Supported | | | Server Actions | Supported | | | Response streaming | Supported | | | Asynchronous work with next/after | Supported | | | Middleware | Supported | | | Image optimization | Supported | Supported through [Cloudflare Images](https://4f1c5cd2.previews.developers.cloudflare.com/images/). | | Partial Prerendering (PPR) | Supported | PPR is experimental in Next.js. | | Composable Caching ("use cache") | Supported | Composable Caching is experimental in Next.js. | | Node.js in Middleware | Not yet supported | Node.js middleware introduced in Next.js 15.2 is not yet supported. | For detailed OpenNext documentation, refer to [OpenNext for Cloudflare ↗](https://opennext.js.org/cloudflare). ## Configure OpenNext manually Wrangler automatic configuration uses vinext for Next.js projects. To use OpenNext, configure the adapter manually. 1. **Install the OpenNext Cloudflare adapter.** npmyarnpnpmbun ``` npm i @opennextjs/cloudflare@latest ``` ``` yarn add @opennextjs/cloudflare@latest ``` ``` pnpm add @opennextjs/cloudflare@latest ``` ``` bun add @opennextjs/cloudflare@latest ``` 2. **Install Wrangler.** npmyarnpnpmbun ``` npm i -D wrangler@latest ``` ``` yarn add -D wrangler@latest ``` ``` pnpm add -D wrangler@latest ``` ``` bun add -d wrangler@latest ``` 3. **Add a Wrangler configuration file.** In your project root, create a [Wrangler configuration file](https://4f1c5cd2.previews.developers.cloudflare.com/workers/wrangler/configuration/) with the following content: ```jsonc { "$schema": "./node_modules/wrangler/config-schema.json", "name": "my-app", "main": ".open-next/worker.js", // Set this to today's date "compatibility_date": "2026-08-25", "compatibility_flags": [ "nodejs_compat" ], "assets": { "directory": ".open-next/assets", "binding": "ASSETS" }, "observability": { "enabled": true } } ``` ```toml name = "my-app" main = ".open-next/worker.js" # Set this to today's date compatibility_date = "2026-08-25" compatibility_flags = ["nodejs_compat"] [assets] directory = ".open-next/assets" binding = "ASSETS" [observability] enabled = true ``` Note You must turn on the [nodejs\_compat compatibility flag](https://4f1c5cd2.previews.developers.cloudflare.com/workers/runtime-apis/nodejs/) and set your [compatibility date](https://4f1c5cd2.previews.developers.cloudflare.com/workers/configuration/compatibility-dates/) to `2024-09-23` or later. 4. **Add an OpenNext configuration file.** In your project root, create `open-next.config.ts`: ```ts import { defineCloudflareConfig } from "@opennextjs/cloudflare"; export default defineCloudflareConfig(); ``` Use this file to configure OpenNext features such as caching. For more information, refer to [OpenNext caching ↗](https://opennext.js.org/cloudflare/caching). 5. **Update `package.json`.** Add scripts for previewing, deploying, and generating Cloudflare types: ```json { "scripts": { "preview": "opennextjs-cloudflare build && opennextjs-cloudflare preview", "deploy": "opennextjs-cloudflare build && opennextjs-cloudflare deploy", "cf-typegen": "wrangler types --env-interface CloudflareEnv cloudflare-env.d.ts" } } ``` Script usage * `preview`: Builds your app and serves it locally in the Workers runtime. * `deploy`: Builds your app and deploys it to Cloudflare Workers. * `cf-typegen`: Generates `cloudflare-env.d.ts` with Cloudflare binding types. 6. **Develop locally.** Start the Next.js development server. npmyarnpnpm ``` npm run dev ``` ``` yarn run dev ``` ``` pnpm run dev ``` 7. **Preview with OpenNext.** Preview your application in the Workers runtime. npmyarnpnpm ``` npm run preview ``` ``` yarn run preview ``` ``` pnpm run preview ``` 8. **Deploy your project.** Deploy your project to Cloudflare Workers. npmyarnpnpm ``` npm run deploy ``` ``` yarn run deploy ``` ``` pnpm run deploy ``` Workers Builds [Workers Builds](https://4f1c5cd2.previews.developers.cloudflare.com/workers/ci-cd/builds/) requires you to configure environment variables in [Build variables and secrets](https://4f1c5cd2.previews.developers.cloudflare.com/workers/ci-cd/builds/configuration/#build-variables-and-secrets). This ensures the Next.js build has access to both public `NEXT_PUBLIC_` variables and non-public variables required for static generation and server-side build work. For more information, refer to [OpenNext environment variables ↗](https://opennext.js.org/cloudflare/howtos/env-vars#workers-builds). Was this helpful? YesNo ## On this page [![](https://4f1c5cd2.previews.developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://4f1c5cd2.previews.developers.cloudflare.com/) ```json {"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/workers/framework-guides/web-apps/opennext/#page","headline":"OpenNext adapter · Cloudflare Workers docs","description":"Deploy a Next.js application to Cloudflare Workers with the OpenNext adapter.","url":"https://developers.cloudflare.com/workers/framework-guides/web-apps/opennext/","inLanguage":"en","image":"https://developers.cloudflare.com/og-docs.png","dateModified":"2026-08-01","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. 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