open-windows-file-dialog

Programmatically open a file dialog window (explorer) for picking files. Only works on Windows. Also see: open-finder-dialog, open-linux-file-dialog, and open-file-manager-dialog for other platforms.

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Install

Install with npm:

$ npm install --save open-windows-file-dialog

Usage

import { openWindowsFileDialog } from 'open-windows-file-dialog';
// or
import openWindowsFileDialog from 'open-windows-file-dialog';

API

Main Function

openWindowsFileDialog

export const openWindowsFileDialog = async (
  filepath?: string,
  options?: FileDialogOptions
): Promise<FileDialogResult>;

Opens a Windows file dialog to select files and returns detailed results including selected files and cancellation status.

Convenience Function

openWindowsFileDialogSync

export const openWindowsFileDialogSync = async (
  filepath?: string,
  options?: FileDialogOptions
): Promise<string[]>;

Returns only the array of selected file paths for simpler usage.

Types

interface FileDialogOptions {
  multiple?: boolean; // Allow multiple file selection (default: true)
  checkFileExists?: boolean; // Verify files exist (default: true)
  filter?: string; // File type filter (default: '*.*')
  title?: string; // Dialog title (default: 'Select File(s)')
  defaultExtension?: string; // Default file extension
}

interface FileDialogResult {
  files: string[]; // Array of selected file paths
  canceled: boolean; // Whether the dialog was canceled
}

Examples

Basic Usage

// Open dialog in current directory with default options
const result = await openWindowsFileDialog();
console.log('Selected files:', result.files);
console.log('Was canceled:', result.canceled);

// Simple version that returns only file paths
const files = await openWindowsFileDialogSync();
console.log('Selected files:', files);

Custom Directory

// Open dialog in specific directory
const result = await openWindowsFileDialog('C:\\Users\\Documents');

Single File Selection

// Allow only single file selection
const result = await openWindowsFileDialog(undefined, {
  multiple: false,
  title: 'Select a single file'
});

File Type Filtering

// Filter for text files only
const result = await openWindowsFileDialog(undefined, {
  filter: '*.txt',
  title: 'Select Text Files'
});

// Multiple file types with custom format
const result = await openWindowsFileDialog(undefined, {
  filter: 'Text files (*.txt)|*.txt|All files (*.*)|*.*',
  title: 'Select Files'
});

// Image files
const result = await openWindowsFileDialog(undefined, {
  filter: '*.jpg;*.png;*.gif',
  title: 'Select Images'
});

Advanced Options

const result = await openWindowsFileDialog('C:\\Projects', {
  multiple: true,
  checkFileExists: true,
  filter: 'JavaScript files (*.js)|*.js|TypeScript files (*.ts)|*.ts',
  title: 'Select Source Files',
  defaultExtension: 'js'
});

if (!result.canceled) {
  console.log(`Selected ${result.files.length} files:`);
  for (const file of result.files) {
    console.log(`  ${file}`);
  }
}

Parameters

filepath (optional)

The initial directory where the dialog should open. Defaults to the current working directory.

• Type: string
• Default: process.cwd()

options (optional)

Configuration object for the file dialog behavior.

options.multiple

Allow selection of multiple files.

• Type: boolean
• Default: true

options.checkFileExists

Verify that selected files actually exist on the filesystem.

• Type: boolean
• Default: true

options.filter

File type filter string. Can be in simple format (*.txt) or Windows filter format (Text files (*.txt)|*.txt).

• Type: string
• Default: '*.*' (all files)

options.title

Title displayed in the dialog window.

• Type: string
• Default: 'Select File(s)'

options.defaultExtension

Default file extension to append if user doesn't specify one.

• Type: string
• Default: '' (empty)

Requirements

• Windows operating system
• PowerShell must be available and executable
• .NET Framework (for Windows Forms components)

Error Handling

The functions throw FileDialogError in these cases:

• PowerShell is not available on the system
• Invalid filepath parameter (non-string)
• PowerShell execution errors
• Dialog timeout (after 5 minutes)

try {
  const result = await openWindowsFileDialog();
  // Handle successful result
} catch (error) {
  if (error instanceof FileDialogError) {
    console.error('File dialog error:', error.message);
  }
}

Related

You might also be interested in:

• open-file-manager: Cross-platform utility to open a file or directory in the system's default file manager (Finder… more | homepage
• open-finder-dialog: Open a finder dialog window (finder prompt) programmatically. Only works on MacOS. | homepage
• open-linux-file-dialog: Open a file dialog window programmatically to allow the user to select one or more… more | homepage

About

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Author

Jon Schlinkert

• GitHub Profile
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License

Copyright © 2025, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.8.0, on May 25, 2025.