Announcement
Rolldown: Fast Rust-based JS/TS Bundler with Rollup Compatibility
Rolldown is a high-performance JavaScript and TypeScript bundler written in Rust, offering a Rollup-compatible API for a seamless migration path. Accelerate your build times with native speed.
Project Introduction
Summary
Rolldown is a modern, fast, and efficient module bundler built in Rust. It aims to be a drop-in replacement or a high-performance alternative to existing bundlers like Rollup, focusing on speed and developer experience.
Problem Solved
Traditional JavaScript bundlers, often written in JavaScript or TypeScript themselves, can become a bottleneck in large-scale frontend and backend projects due to their single-threaded nature and inherent performance limitations of the runtime. Rolldown addresses this by moving the core bundling logic to Rust.
Core Features
Rust-native Performance
Leverages Rust's performance characteristics for significantly faster bundling times compared to Node.js-based alternatives.
Rollup API Compatibility
Designed to be highly compatible with the Rollup API, allowing developers to easily switch bundlers with minimal code changes.
JS/TS Support
Provides robust support for both JavaScript and TypeScript projects out-of-the-box.
Tech Stack
Use Cases
Rolldown can be used in various scenarios where efficient and fast JavaScript/TypeScript bundling is required, including:
Large Application Builds
Details
For large-scale web applications with complex dependency graphs, Rolldown can significantly cut down on local development build times and production bundling duration.
User Value
Faster local development iterations and quicker deployments.
Accelerating CI/CD Builds
Details
Integrate Rolldown into Continuous Integration and Deployment pipelines to reduce the time spent on the build step, leading to faster feedback loops.
User Value
Reduced CI/CD pipeline duration and lower infrastructure costs for build minutes.
Migrating from Rollup
Details
Migrate existing projects using Rollup to Rolldown to leverage Rust's speed while maintaining most of the existing configuration.
User Value
Improved build performance with minimal migration effort.
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