Issues

• @tsdown/css skips Vue SFC <style src="..." />, build fails with UNSUPPORTED_FEATURE

  bugcss
  Bug

  rolldown/tsdown#1095 · Filter by author pont1s opened on Oct 12, 2026

• css.splitting: false puts a shared chunk's CSS after the entries that import it

  bugcss
  rolldown/tsdown#1086 · Filter by author dadajam4 opened on Sep 23, 2026

• Change clean behavior to preserve existing output files

  enhancementneeds discussion
  Feature

  rolldown/tsdown#1079 · Filter by author m-canton opened on Sep 18, 2026
  2

• workspace: include globs match directories without package.json, and the resulting "Cannot find entry" error names the root config instead of the offending directory

  buggood first issue
  Bug

  rolldown/tsdown#1067 · Filter by author relanse opened on Sep 10, 2026

• pack.dts writes declaration files back to upstream workspace package src/ when moduleResolution: "Bundler" + tsconfig paths resolve directly to upstream src/*.ts

  bugdtshas workaround
  Bug

  rolldown/tsdown#1048 · Filter by author liuweiGL opened on Aug 12, 2026
  2

• Composed CSS modules are duplicated

  bugcss
  Bug

  rolldown/tsdown#979 · Filter by author Treycos opened on Jun 20, 2026
  1

• Call build:prepare hook on rebuild in watch mode

  enhancementneeds discussion
  Feature

  rolldown/tsdown#972 · Filter by author Karibash opened on Jun 12, 2026

• declaration emit can trigger TS2742 when public types are local aliases re-exported later

  bugdtsupstream
  rolldown/tsdown#958 · Filter by author unional opened on May 24, 2026
  1

• Code splitting cause optional export/module to be referenced by other modules

  bug
  Bug

  rolldown/tsdown#942 · Filter by author fuma-nama opened on May 10, 2026

• local @import statement isn't stripped when placed after @source

  cssneeds discussion
  Bug

  rolldown/tsdown#922 · Filter by author ntjess opened on Apr 19, 2026

• style file is generated twice when selected two formats

  cssquestion
  Bug

  rolldown/tsdown#887 · Filter by author denis88k opened on Apr 1, 2026

• Changes of projects in monorepo won't cause other projects rebuild in watch mode

  enhancement
  Bug

  rolldown/tsdown#880 · Filter by author neko-para opened on Mar 29, 2026

• clean is not respected on format.outDir

  buggood first issue
  Bug

  rolldown/tsdown#843 · Filter by author dmurvihill opened on Mar 19, 2026

• exe support: roadmap & tracking

  enhancement
  Task

  rolldown/tsdown#776 · Filter by author hyfdev opened on Feb 21, 2026
  6

• Unable to use tsgo for types output if project imports json files even tho tsgo can build the project

  bugupstream
  Bug

  rolldown/tsdown#742 · Filter by author kalvenschraut opened on Jan 31, 2026
  1

• Build hangs indefinitely with ~3000 unbundled entry files

  upstream
  Bug

  rolldown/tsdown#696 · Filter by author alexx855 opened on Jan 7, 2026
  2

• Question: Does tsdown support compiling Web Worker files?

  enhancementhas workaroundpr welcome
  Feature

  rolldown/tsdown#491 · Filter by author atox996 opened on Sep 15, 2025
  15

• minification with unbundle results in unoptimized output

  enhancementunbundle
  Feature

  rolldown/tsdown#447 · Filter by author sakgoyal opened on Aug 19, 2025
  1

• Built-in support for moduleSuffixes field

  enhancement
  Feature

  rolldown/tsdown#431 · Filter by author smallmain opened on Aug 14, 2025

• Support publishConfig.directory

  enhancementneeds discussion
  Feature

  rolldown/tsdown#414 · Filter by author Janpot opened on Aug 5, 2025

• The alias path package in independent config file is invalid

  enhancementneeds discussion
  Feature

  rolldown/tsdown#395 · Filter by author apades opened on Jul 25, 2025
  2

• Potential side effect imports preserved in ESM .d.ts

  enhancementupstream
  Bug

  rolldown/tsdown#391 · Filter by author SuperchupuDev opened on Jul 22, 2025
  1

• d.ts namespace re-export bug

  bugdts
  Bug

  rolldown/tsdown#366 · Filter by author Groupguanfang opened on Jul 5, 2025
  6

• enabling declaration maps force-enables source maps

  dtsenhancementhas workaroundupstream
  Feature

  rolldown/tsdown#360 · Filter by author altano opened on Jul 1, 2025
  1

• Cannot bundle workspace:* in Yarn PnP environment

  enhancementneeds discussionneeds report upstream
  Feature

  rolldown/tsdown#248 · Filter by author gronxb opened on May 21, 2025
  6