---
title: "tsdown - The Elegant Library Bundler - Air Market"
description: "You have a library to publish and need it bundled, typed, and available in more than one module format. tsdown does that bundling, built on Rolldown. Reach for it when you are setting up a library bu…"
canonical: "https://airmarket.ai/app/tsdown"
---

[Air Market](/) / [Developer Tools](/category/devtools) / tsdown - The Elegant Library Bundler

Skill by [Anthony Fu](/@antfu)

# tsdown - The Elegant Library Bundler

Ship a TypeScript library in the formats consumers expect

## What this does

You have a library to publish and need it bundled, typed, and available in more than one module format. tsdown does that bundling, built on Rolldown. Reach for it when you are setting up a library build or moving one over from tsup.

### Top 3 things it does for you

- Bundle a TypeScript or JavaScript library
- Generate type declarations
- Build for several output formats

## Information

**tsdown - The Elegant Library Bundler at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Anthony Fu](/@antfu) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 175 KB |
| Licence | MIT |
| Repository | [antfu/skills](https://github.com/antfu/skills/tree/a74f281a27dadc02397bc1a174b0f2c97531b6ae/skills/tsdown) |
| GitHub stars | 5,792 (as of Nov 2026) |
| Installs | 13,966, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of tsdown - The Elegant Library Bundler and recorded 0 findings and 3 flagged items. AIR's verdict: **safe**.

**What tsdown - The Elegant Library Bundler's check was run against**

|  |  |
| --- | --- |
| Commit | a74f281a27dadc02397bc1a174b0f2c97531b6ae |
| Content hash | a5f445c0df6b7c2be393ea8339e05390b1a0e2f4f0b2431440d22864073360ae |
| Files read | [Browse the files at this exact commit](https://github.com/antfu/skills/blob/a74f281a27dadc02397bc1a174b0f2c97531b6ae/skills/tsdown/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for tsdown - The Elegant Library Bundler](/security/tsdown)

## About tsdown - The Elegant Library Bundler

tsdown bundles TypeScript and JavaScript libraries, powered by Rolldown.

Use it when building libraries, generating type declarations, bundling for multiple formats, or migrating from tsup.

## What's inside

- SKILL.md - instructions
- LICENSE.md - reference
- README.md - reference
- references/advanced-benchmark.md - reference
- references/advanced-ci.md - reference
- references/advanced-hooks.md - reference
- references/advanced-plugins.md - reference
- references/advanced-programmatic.md - reference
- references/advanced-rolldown-options.md - reference
- references/guide-getting-started.md - reference
- references/guide-introduction.md - reference
- references/guide-migrate-from-tsup.md - reference
- references/option-cjs-default.md - reference
- references/option-cleaning.md - reference
- references/option-config-file.md - reference
- references/option-css.md - reference
- references/option-dependencies.md - reference
- references/option-dts.md - reference
- references/option-entry.md - reference
- references/option-exe.md - reference
- references/option-lint.md - reference
- references/option-log-level.md - reference
- references/option-minification.md - reference
- references/option-output-directory.md - reference
- references/option-output-format.md - reference
- references/option-package-exports.md - reference
- references/option-platform.md - reference
- references/option-root.md - reference
- references/option-shims.md - reference
- references/option-sourcemap.md - reference
- references/option-target.md - reference
- references/option-tree-shaking.md - reference
- references/option-unbundle.md - reference
- references/option-watch-mode.md - reference
- references/README.md - reference
- references/recipe-react.md - reference
- references/recipe-solid.md - reference
- references/recipe-svelte.md - reference
- references/recipe-vue.md - reference
- references/recipe-wasm.md - reference
- references/reference-cli.md - reference
- SYNC.md - reference

## Questions

### Is tsdown - The Elegant Library Bundler safe to install?

AIR scanned this exact version of tsdown - The Elegant Library Bundler and recorded 0 findings and 3 flagged items. AIR's verdict: safe. The verdict is named by the content that was read, at commit a74f281a27da, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/tsdown.

### How do I install tsdown - The Elegant Library Bundler?

Open https://airmarket.ai/app/tsdown on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/antfu/skills/tree/a74f281a27dadc02397bc1a174b0f2c97531b6ae/skills/tsdown. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by Anthony Fu](/@antfu)

---

Canonical URL: <https://airmarket.ai/app/tsdown>