tsup is a zero-config TypeScript bundler powered by esbuild. It prioritizes speed and simplicity, making it ideal for quickly building modern JavaScript libraries. With automatic externalization of dependencies and support for various output formats (ESM, CJS, IIFE), tsup streamlines the bundling process. Its minimal configuration reduces boilerplate, letting developers focus on writing code instead of build scripts. Popular for its efficient build times and ease of use, tsup is a valuable tool for any TypeScript project.
Tsup's release frequency is highly variable. It was most active in 2020 and 2021, with peaks in May 2020 and March 2021. Release activity has significantly decreased since 2022, with many months having no releases. There have been occasional releases in 2023, 2024, and 2025, but the overall trend is a substantial reduction in frequency.
Tsup downloads show strong growth, rising from 282k in Feb 2024 to a peak of 9.5M in July 2025. August 2025 downloads are at 6.9M, but the month is not yet complete. Overall, tsup has experienced significant adoption and increasing popularity over the past year and a half.
