This is a simple and open source tool written in Python to resize multiple images at once.

Get the latest release and run bir.exe. Click Browse and select the folder containing the images you want to resize. Then enter the width, the height and click on Export.

You can also select whether you want your images to be saved as a PNG or a JPEG file or you can check the Overwrite original checkbox to overwrite the original files.

1. Make sure you have installed Python 3

2. Get these:

   Module	Installation command
   Pillow	pip install Pillow
   enum34	pip install enum34
   py2exe	pip install py2exe
   setuptools	pip install setuptools

3. Run build.bat

I've tested this only on Windows 10. If you don't use Windows and you're experienced with Python, it should be trivial to modify it to support other operating systems (OS X, Linux).

The MIT License, check the LICENSE file.