Programmatic Usage

You can use tsdown directly from your JavaScript or TypeScript code. This is useful for custom build scripts, integrations, or advanced automation.

Example

ts

import { build
 } from 'tsdown'

await build
({
  entry
: ['src/index.ts'],
  format
: ['esm', 'cjs'],
  outDir
: 'dist',
  dts
: true,
  // ...any other options
})

All CLI options are available as properties in the options object. See Config Options for the full list.