diff --git a/CHANGELOG.md b/CHANGELOG.md
index 786ebc8..6b789d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 - Use `main` as default branch
 - Move files to `src` and compile to `dist`
 - Check `main`, `bin`, and `browser` paths are relative
+- Support passing a directory to the CLI `pkg-ok some/path`
 
 ## 2.3.1
 
diff --git a/README.md b/README.md
index 857ae52..8c54c34 100644
--- a/README.md
+++ b/README.md
@@ -28,11 +28,23 @@ npm publish
 # Since main file doesn't exist, publish is blocked
 ```
 
-## Options
+## CLI
 
-`pkg-ok` can be configured to check additional `package.json` fields or bin files
+Check the `package.json` in the current directory.
 
+```sh
+pkg-ok
+```
+
+Check the `package.json` in a specific directory.
+
+```sh
+pkg-ok some/directory
 ```
+
+Check additional `package.json` fields or bin files.
+
+```sh
 pkg-ok --field someField --bin script.sh
 ```
 
diff --git a/src/bin.test.ts b/src/bin.test.ts
new file mode 100644
index 0000000..f9e5ec7
--- /dev/null
+++ b/src/bin.test.ts
@@ -0,0 +1,167 @@
+import { beforeAll, describe, expect, it } from '@jest/globals';
+import { execFile } from 'child_process';
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
+
+let directory = '';
+
+describe('pkg-ok', () => {
+  beforeAll(() => {
+    directory = fs.mkdtempSync(path.join(os.tmpdir(), 'pkg-ok-'));
+    fs.mkdirSync(path.join(directory, 'A'));
+    fs.writeFileSync(
+      path.join(directory, 'A/package.json'),
+      JSON.stringify({
+        main: 'unknown.js',
+        bin: 'unknown.js',
+        types: 'unknown.js',
+        typings: 'unknown.js',
+        module: 'unknown.js',
+        es2015: 'unknown.js',
+        browser: 'unknown.js',
+        exports: 'unknown.js',
+      })
+    );
+    fs.mkdirSync(path.join(directory, 'B'));
+    fs.writeFileSync(
+      path.join(directory, 'B/package.json'),
+      JSON.stringify({
+        bin: {
+          X: 'unknown.js',
+          Y: 'unknown.js',
+        },
+      })
+    );
+    fs.mkdirSync(path.join(directory, 'C'));
+    fs.writeFileSync(
+      path.join(directory, 'C/package.json'),
+      JSON.stringify({
+        foo: 'unknown.js',
+      })
+    );
+    fs.mkdirSync(path.join(directory, 'D'));
+    fs.writeFileSync(
+      path.join(directory, 'D/package.json'),
+      JSON.stringify({
+        foo: {
+          bar: 'bar',
+          baz: 'baz',
+        },
+      })
+    );
+    fs.mkdirSync(path.join(directory, 'E'));
+    fs.writeFileSync(
+      path.join(directory, 'E/package.json'),
+      JSON.stringify({
+        bin: './script.js',
+      })
+    );
+    fs.writeFileSync(path.join(directory, 'E/script.js'), 'foo\r\nbar');
+    fs.writeFileSync(path.join(directory, 'E/another-script.js'), 'baz\r\nqux');
+    fs.mkdirSync(path.join(directory, 'F'));
+    fs.mkdirSync(path.join(directory, 'F', 'dist'));
+    fs.writeFileSync(
+      path.join(directory, 'F/package.json'),
+      JSON.stringify({
+        browser: {
+          './dist/lib.cjs.js': './dist/lib.cjs.browser.js',
+          './dist/lib.esm.js': './dist/lib.esm.browser.js',
+        },
+      })
+    );
+    fs.writeFileSync(path.join(directory, 'F/dist/lib.cjs.browser.js'), 'cjs');
+    fs.writeFileSync(path.join(directory, 'F/dist/lib.esm.browser.js'), 'esm');
+    fs.mkdirSync(path.join(directory, 'G'));
+    fs.mkdirSync(path.join(directory, 'G', 'dist'));
+    fs.writeFileSync(
+      path.join(directory, 'G/package.json'),
+      JSON.stringify({
+        browser: {
+          'dist/lib.cjs.js': './dist/lib.cjs.browser.js',
+          './dist/lib.esm.js': 'dist/lib.esm.browser.js',
+        },
+      })
+    );
+    fs.writeFileSync(path.join(directory, 'G/dist/lib.cjs.js'), './dist/lib.cjs.browser.js');
+  });
+
+  it('checks /A', (done) => {
+    execFile('node', ['dist/bin.js', path.join(directory, 'A')], (_error, stdout) => {
+      expect(stdout).toMatch(
+        /main[\s\S]*bin[\s\S]*types[\s\S]*typings[\s\S]*module[\s\S]*es2015[\s\S]*browser[\s\S]*exports/
+      );
+      done();
+    });
+  });
+
+  it('checks /B', (done) => {
+    execFile('node', ['dist/bin.js', path.join(directory, 'B')], (_error, stdout) => {
+      expect(stdout).toMatch(/bin\.X[\s\S]*bin\.Y/);
+      done();
+    });
+  });
+
+  it('checks /C', (done) => {
+    execFile(
+      'node',
+      ['dist/bin.js', path.join(directory, 'C'), '--field', 'foo'],
+      (_error, stdout) => {
+        expect(stdout).toMatch(/foo/);
+        done();
+      }
+    );
+  });
+
+  it('checks /D', (done) => {
+    execFile(
+      'node',
+      ['dist/bin.js', path.join(directory, 'D'), '--field', 'foo'],
+      (_error, stdout) => {
+        expect(stdout).toMatch(/foo\.bar[\s\S]*foo\.baz/);
+        done();
+      }
+    );
+  });
+
+  it('checks /E', (done) => {
+    execFile(
+      'node',
+      ['dist/bin.js', path.join(directory, 'E'), '--bin', 'another-script.js'],
+      () => {
+        expect(fs.readFileSync(path.join(directory, '/E/script.js'), 'utf-8')).toEqual('foo\nbar');
+        expect(fs.readFileSync(path.join(directory, '/E/another-script.js'), 'utf-8')).toEqual(
+          'baz\nqux'
+        );
+        done();
+      }
+    );
+  });
+
+  it('checks /F', (done) => {
+    execFile(
+      'node',
+      ['dist/bin.js', path.join(directory, 'F'), '--bin', 'another-script.js'],
+      () => {
+        expect(
+          fs.readFileSync(path.join(directory, '/F/dist/lib.cjs.browser.js'), 'utf-8')
+        ).toEqual('cjs');
+        expect(
+          fs.readFileSync(path.join(directory, '/F/dist/lib.esm.browser.js'), 'utf-8')
+        ).toEqual('esm');
+        done();
+      }
+    );
+  });
+
+  it('checks /G', (done) => {
+    execFile(
+      'node',
+      ['dist/bin.js', path.join(directory, 'G'), '--bin', 'another-script.js'],
+      (_error, stdout) => {
+        expect(stdout).toMatch(/browser.*path[\s\S]*browser.*path[\s\S]*browser.*must/);
+        done();
+      }
+    );
+  });
+});
diff --git a/src/bin.ts b/src/bin.ts
index 15a484d..2924b6b 100644
--- a/src/bin.ts
+++ b/src/bin.ts
@@ -42,8 +42,10 @@ const errorMessage = (error: unknown) => {
   }
 };
 
+const directory = cli.input[0] || process.cwd();
+
 try {
-  pkgOk(process.cwd(), { fields: cli.flags.field, bin: cli.flags.bin });
+  pkgOk(directory, { fields: cli.flags.field, bin: cli.flags.bin });
   console.log(chalk.green('Package ok'));
 } catch (error) {
   console.log(chalk.red('pkg-ok error'));