The core difference between Remix and Next.js lies in data processing: Remix uses loader and action to implement unified request response on the server, natively supports form submission and redirection, and reduces client requests and errors; Next.js relies on getServerSideProps or API routes to cooperate with front-end fetch, and the data flow is clear but it is easy to cause hydration inconsistency. 2. In terms of routing, both use files, that is, routing, but Remix's nested routing is more natural. Subroutines inherit layout and renders through useOutlets, which is suitable for complex middle and backends; Next.js' App Router supports nesting and React Server Components, but has a relatively complex structure. 3. In terms of deployment, Next.js supports SSG, SSR, and ISR, which can be exported statically, suitable for static sites such as blogs, and deployed on platforms such as Vercel, Netlify, etc.; Remix focuses on SSR, requiring a runtime environment (such as Node.js or edge functions), and does not support pure static export, which is more suitable for dynamic applications. 4. Ecologically, Next.js is a huge community, rich integration, and high development efficiency, suitable for rapid prototypes and enterprise projects; Remix pays more attention to web standards, barrier-free and form security, has a small plug-in ecosystem and a steep learning curve, which is suitable for developers who pursue data consistency and gradual enhancement. Summary: If the project is static content, marketing page or needs to be developed quickly, choose Next.js; if it is a backend system with complex forms and multi-step operations and attaches importance to the Web principle, choose Remix; the two continue to evolve, Next.js is more mainstream, and Remix is closer to the native Web experience.

Remix and Next.js are both full-stack frameworks based on React, and can build high-performance modern web applications. However, they have obvious differences in design concepts, data processing methods and usage scenarios. Which one to choose depends on your project needs and development preferences.

1. The interaction between data loading and server is different

This is the most core difference between the two.

• Next.js uses traditional API to route front-end requests mode:

  
  • The page obtains data through getServerSideProps , getStaticProps or client fetch .
  • The API is written in the /pages/api directory as a separate endpoint.
  • The data flow is clear, but it is prone to cause "hydration inconsistency" or additional client requests.

• Remix adopts a unified request/response model :

  • All data is processed on the server through loader and action functions.
  • Form submission and data reading are both standard HTTP requests, and there is no need to write API routes.
  • It is closer to web native behavior, automatically dealing with form errors, redirection, and status recovery.

For example: a user submits a login form.

• In Next.js, you usually use fetch to POST to /api/login and then manually handle jumps or errors.
• In Remix, directly submit it with <form></form> , the action function automatically receives the request, and after processing, it can directly redirect or return an error, and the UI will be automatically updated.

This design makes Remix safer and less error-making when handling forms, complex state flows.

2. Routing mechanism and file structure

Both use file-based routing, but the implementation logic is different.

• Next.js routing :

  • Based on /pages or /app directories (App Router is a newer feature).
  • App Router supports nested layouts and React Server Components, but learning costs are rising.
  • Dynamic routes such as [id].js support convention files such as loading.js and error.js .

• Remix routing :

  • The routing files are placed in /routes and support deep nesting.
  • The child route automatically inherits the parent layout and renders it through useOutlet .
  • More flexible routing matching rules, supporting wildcard characters, parameter capture, etc.

Remix's nested routing is more "native" and is suitable for middle and backend and multi-level page applications.
Next.js' App Router is catching up with this ability, but it is still a bit complicated at the moment.

3. Deployment and operation environment

• Next.js :

  • Supports multiple rendering modes: SSG, SSR, ISR, and client rendering.
  • Flexible deployment: Vercel is preferred to support it, but it is also compatible with Netlify, Node.js servers, and Serverless.
  • There are many options for generating static files during construction, which is suitable for content-based websites (such as blogs and document sites).

• Remix :

  • Emphasizes runtime capabilities, focusing on SSR and dynamic response.
  • A server environment running JavaScript is required (Node, Deno, Cloudflare Workers, etc.).
  • Pure static exports are not supported (although experimental schemes) and are not suitable for completely static websites.

Next.js is more suitable if you want to "deploy static pages with one click".
If you need strong server logic, form processing, and real-time data flow, Remix has more advantages.

4. Development experience and ecology

• Next.js has a stronger ecosystem :

  • Backed by Vercel, the community is large, the documents are complete, and the third-party library is rich.
  • Excellent integration with Tailwind, TypeScript, Prisma.
  • More corporate projects are adopted, and there are more recruitment and learning resources.

• Remix focuses more on the web core :

  • Emphasize semantic HTML, accessibility, and form security.
  • The plug-in system is growing, but there are relatively few third-party libraries.
  • The learning curve is slightly steep, especially for developers who are accustomed to SPA.

Remix is more like a "framework designed for the web", while Next.js is a "framework designed for the efficiency of developers".

Summary: How to choose?

Basically that's it.
Both are evolving rapidly, Next.js is more mainstream, and Remix is more "geek".
If you pursue development speed and ecology, choose Next.js;
If you value data consistency, form security and web principles, try Remix.

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