Topic

bundler

3 posts

tsup vs unbuild: Should You Switch? 931ms vs 2034ms

tsup 8.5.1 vs unbuild 3.6.1 on a 150-module TypeScript library (ESM+CJS): median 931 ms vs 2034 ms (~2.2x); with .d.ts 3213 ms vs 3740 ms (~1.16x). unbuild ESM 4.9% smaller, CJS 8.3% smaller; tsup README says not actively maintained.

5 Oct 20265 min read

Should You Leave Rollup? 964ms vs 246ms

Rolldown 1.2.12 vs Rollup 4.64.0 on 501 ESM files (197380 B source): median wall 245.617 ms vs 964.3 ms (~3.9x). Output 130522 vs 126894 B. Direct node bin, 5 interleaved warm runs, no minify.

5 Oct 20264 min read

Rspack 2.2.8: resolver cache, memory shrinks, modern-module deferral (28 Sep 2026)

Rspack published @rspack/core@2.2.8 on 28 September 2026: resolver caching, memory shrinks, and modern-module deferral fixes on the 2.2 line. Upgrade checklist only; no affiliate.

5 Oct 20264 min read