Announcing Rsbuild 1.0#

September 10, 2024

We are pleased to announce the release of Rsbuild 1.0!

Why Rsbuild#

For a long time, developers using webpack have been bothered by two major issues: slow build times and configuration complexity.

We have used Rust to rewrite webpack into Rspack, which addresses the slow build issue. However, to maintain compatibility with the webpack ecosystem, Rspack retains webpack's configuration and API, which means it still has some complexity and a learning curve.

Evolution of the ecosystem#

In the early days, there were some excellent tools within the webpack ecosystem, such as Create React App (CRA) and Vue CLI. These tools provided best practices for building React or Vue applications, while hiding the complex webpack configuration. As a result, many React and Vue users used these tools to build applications without having to configure webpack from scratch.

As the ecosystem evolved, full-stack web frameworks such as Next.js, Nuxt, and Remix became popular; Vite was introduced as a lightweight build tool and also gained popularity. However, CRA and Vue CLI gradually stopped being maintained.

When we look at the npm download numbers for webpack, CRA, and Vue CLI, we find that a large number of projects are still using these tools. For example, webpack has about 25 million weekly downloads, and CRA has nearly 3 million weekly downloads. Many of these projects are CSR applications that do not require the SSR features of full-stack frameworks. Vite seems like a good choice, but after using Vite in our ByteDance projects, we found that migrating from webpack to Vite comes with high costs and introduces new problems, such as dev and build inconsistency, and slow page refreshes in large applications during development.

For the webpack ecosystem, we discovered a sad fact: the webpack ecosystem lacks a build tool that is easy to use and well maintained. The tool should be as user-friendly as CRA and Vue CLI, fully meet the needs of CSR application development, and have features such as fast startup and plugin support similar to Vite.

Performance#

Rsbuild is currently the fastest build tool in the webpack and Rspack ecosystem. Here is a comparison between Rsbuild, Create React App, Vite, and Rspack CLI:

Metric	Create React App	Vite (with SWC)	Rspack CLI	Rsbuild	Rsbuild vs CRA
dev startup time (1000 modules)	5.47s	1.29s	0.66s	0.39s	14x faster
build time (1000 modules)	5.69s	1.39s	0.51s	0.27s	20x faster
npm dependencies count	1241	15	283	14	99% reduction
npm install size	146.6MB	56.3MB	75.1MB	59.1MB	60% reduction

Compared to the Rspack CLI, Rsbuild provides a richer set of features while demonstrating superior performance.

This is because Rspack CLI needs to maintain compatibility with the webpack-cli. It relies on the webpack-dev-server and provides the same default behavior as webpack, which has some performance limitations. Rsbuild, on the other hand, is designed for modern web development. We have reimplemented a lighter CLI, dev server, and build process for Rsbuild, resulting in faster startup speeds and fewer npm dependencies.

See the Rsbuild Introduction for more comparisons between Rsbuild, webpack, Vue CLI, and Vite.

Who is using#

In the Rspack 1.0 Announcement, we introduced that Rspack is growing rapidly, with almost half of Rspack users using Rsbuild and giving us lots of positive feedback.

At ByteDance, we use Rsbuild as the cornerstone of our internal web frameworks to support thousands of web projects. These projects cover diverse use cases, including desktop web applications, mobile web applications, cross-platform web applications, documentation sites, and more.

For the community, we have open-sourced a high-performance toolchain based on Rsbuild, including the static site generator Rspress, the library build tool Rslib, the full-stack React framework Modern.js, and the Storybook Rsbuild. The extensibility of Rsbuild allows these tools to flexibly integrate with Rsbuild and share its plugin ecosystem.

After releasing Rsbuild 1.0, we also plan to collaborate with some excellent teams like Remix, to bring Rsbuild to more web frameworks.

How to use 1.0#

• If you haven't used Rsbuild before, you can experience it through the CodeSandbox example or refer to the Quick Start to use Rsbuild.
• If you are using Rsbuild 0.7 or earlier, please note that 1.0 includes some breaking changes. You can refer to the Migrating from 0.x document to upgrade.
• Rsbuild also provides migration guides for projects that use webpack, CRA, Vue CLI, etc. See Migrate from Existing Projects.

Give a star 🌟 to the Rsbuild GitHub repository.