tsdown is a bundler for libraries powered by Rolldown.
tsdown addresses the need for a streamlined bundling solution tailored specifically to library development. Rather than requiring developers to configure a general-purpose bundler for library-specific use cases, tsdown provides an opinionated, pre-configured approach built on top of Rolldown. This reduces setup complexity and allows library authors to focus on code rather than build configuration.
Library authors should choose tsdown when they want a bundler optimized for publishing reusable packages without extensive configuration overhead. The tool suits projects where developers prefer convention over customization and want to leverage Rolldown's performance characteristics without managing low-level bundler settings themselves. The README does not name alternative bundlers or make direct comparisons to other tools in the category.
The project shows consistent development activity with regular commits and ongoing maintenance. Pull requests are reviewed and merged steadily, indicating active engagement with contributions. Issue tracking is maintained with responses to user reports and feature requests.