diff --git a/README.md b/README.md
index 06c25c0..731a0a5 100644
--- a/README.md
+++ b/README.md
@@ -375,47 +375,6 @@ console.log(transformModule(`console.log(import.meta.url)`), { url: 'test.mjs' }
 
 Options are same as `evalModule`.
 
-## Code Generation
-
-Utilities to generate JavaScript code for ESM syntax.
-
-### `genImport`
-
-Generate a static import statement.
-
-```js
-import { genImport } from 'mlly'
-
-// import { foo } from "pkg"
-console.log(genImport('pkg', 'foo'))
-
-// import { a, b } from "pkg"
-console.log(genImport('pkg', 'foo'))
-
-// import { foo as bar } from "pkg"
-console.log(genImport('pkg', { name: 'foo', as: 'bar' }))
-```
-
-### `genDynamicImport`
-
-Generate a dynamic import statement.
-
-```js
-import { genDynamicImport } from 'mlly'
-
-// () => import("pkg")
-console.log(genDynamicImport('pkg'))
-
-// () => import("pkg").then(m => m.default || m)
-console.log(genDynamicImport('pkg', { interopDefault: true }))
-
-// import("pkg")
-console.log(genDynamicImport('pkg', { wrapper: false }))
-
-// () => import("pkg" /* webpackChunkName: "pkg" */)
-console.log(genDynamicImport('pkg', { comment: 'webpackChunkName: "pkg"' }))
-```
-
 ## Other Utils
 
 ### `fileURLToPath`
diff --git a/src/gen.ts b/src/gen.ts
deleted file mode 100644
index 54c7f0b..0000000
--- a/src/gen.ts
+++ /dev/null
@@ -1,47 +0,0 @@
-export interface CodegenOptions {
-  singleQuotes?: Boolean
-}
-
-// genImport
-export type Import = string | { name: string, as?: string }
-export function genImport (specifier: string, imports?: Import | Import[], opts: CodegenOptions = {}) {
-  const specifierStr = genString(specifier, opts)
-  if (!imports) {
-    return `import ${specifierStr}`
-  }
-
-  const _imports = (Array.isArray(imports) ? imports : [imports]).map((i: Import) => {
-    if (typeof i === 'string') { return { name: i } }
-    if (i.name === i.as) { i = { name: i.name } }
-    // TODO: Ensure `name` and `as` are valid identifiers
-    // TODO: Ensure `as` is provided for default import
-    return i
-  })
-
-  const importsStr = _imports.map(i => i.as ? `${i.name} as ${i.as}` : i.name).join(', ')
-  return `import { ${importsStr} } from ${genString(specifier, opts)}`
-}
-
-// genDynamicImport
-export interface DynamicImportOptions extends CodegenOptions {
-  comment?: string
-  wrapper?: boolean
-  interopDefault?: boolean
-}
-export function genDynamicImport (specifier: string, opts: DynamicImportOptions = {}) {
-  const commentStr = opts.comment ? ` /* ${opts.comment} */` : ''
-  const wrapperStr = (opts.wrapper === false) ? '' : '() => '
-  const ineropStr = opts.interopDefault ? '.then(m => m.default || m)' : ''
-  return `${wrapperStr}import(${genString(specifier, opts)}${commentStr})${ineropStr}`
-}
-
-// genImportName
-
-// Internal
-function genString (input: string, opts: CodegenOptions = {}) {
-  const str = JSON.stringify(input)
-  if (!opts.singleQuotes) {
-    return JSON.stringify(input)
-  }
-  return `'${str.replace(/'/g, "\\'")}'`
-}
diff --git a/src/index.ts b/src/index.ts
index d25d222..7c2e547 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,6 @@
 export * from './analyze'
 export * from './cjs'
 export * from './eval'
-export * from './gen'
 export * from './resolve'
 export * from './syntax'
 export * from './utils'
diff --git a/test/gen.test.mjs b/test/gen.test.mjs
deleted file mode 100644
index c1b36f7..0000000
--- a/test/gen.test.mjs
+++ /dev/null
@@ -1,36 +0,0 @@
-import { expect } from 'chai'
-import { genImport, genDynamicImport } from 'mlly'
-
-const genImportTests = [
-  { imports: 'foo', code: 'import { foo } from "pkg"' },
-  { imports: { name: 'foo', as: 'bar' }, code: 'import { foo as bar } from "pkg"' },
-  { imports: { name: 'default', as: 'Test' }, code: 'import { default as Test } from "pkg"' }
-]
-
-describe('genImport', () => {
-  for (const t of genImportTests) {
-    it(t.code, () => {
-      const code = genImport(t.specifier || 'pkg', t.imports || 'default', t.opts)
-      expect(code).to.equal(t.code)
-    })
-  }
-})
-
-const genDynamicImportTests = [
-  { code: '() => import("pkg")' },
-  { opts: { wrapper: false }, code: 'import("pkg")' },
-  { opts: { interopDefault: true }, code: '() => import("pkg").then(m => m.default || m)' },
-  {
-    opts: { comment: 'webpackChunkName: "chunks/dynamic"' },
-    code: '() => import("pkg" /* webpackChunkName: "chunks/dynamic" */)'
-  }
-]
-
-describe('genDynamicImport', () => {
-  for (const t of genDynamicImportTests) {
-    it(t.code, () => {
-      const code = genDynamicImport(t.specifier || 'pkg', t.opts)
-      expect(code).to.equal(t.code)
-    })
-  }
-})