Remix is a full-stack web framework for React, first released as an open source project in 2021 by the team behind React Router and later acquired by Shopify. Its documentation presents it as a framework that blends older and newer web development models, leaning on the foundations of the web rather than abstracting them away. The same team’s deep experience with client-side routing fed directly into Remix’s design.
A central theme of Remix is its commitment to web standards. Rather than inventing framework-specific abstractions for requests, responses, and forms, Remix builds on the platform’s own primitives, including standard Request and Response objects and HTML forms. This focus means that much of what developers learn while using Remix transfers to the underlying web platform itself.
Remix is organized around nested routes. A URL is composed of nested route segments, and each segment can supply its own piece of the user interface along with its own data loading and data mutation logic. This nesting lets a complex page be assembled from independent, co-located route modules, and it allows the framework to load data for several parts of a page in parallel.
Progressive enhancement is the other pillar. Remix applications are designed so that core functionality, such as navigation and form submission, works even before or without client-side JavaScript, because the framework leans on real HTML forms and server-rendered HTML. When JavaScript is available, Remix hydrates the page and enhances those same interactions with client-side behavior, treating script as an enhancement rather than a requirement.
The Remix source lives at github.com/remix-run/remix. Over time the project’s data-loading and routing ideas were folded back into React Router, so that the React Router framework mode and Remix converged. Remix’s emphasis on standards, nested routing, and graceful degradation influenced how many developers think about building resilient web applications.