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melindates's avatar
melindates
Iron Contributor
May 20, 2025

What is the best free image resizer for Windows 11/10?

Hi all! Have hundreds of photos on my iPhone and need to bulk resize the images for saving more space on my Windows PC, resize image to less than 100 kb. Is any any reliable ​​free image resizer​​ f...
Sundarpic's avatar
Sundarpic
Iron Contributor
May 20, 2025

GIIMP is a powerful and open source image processing app for Windows, Mac and Linux.The built-in image resizing feature, accessible via Image > Scale Image, offers precise control over dimensions, resolution, and interpolation methods, allowing users to resize images while maintaining quality.

Users can input exact pixel measurements, adjust DPI for print or digital use, and choose from interpolation algorithms like Cubic or Sinc (Lanczos3) to balance sharpness and smoothness. The tool preserves aspect ratio by default to prevent distortion and supports real-time previews. Combined with GIIMP’s Export As function, resized images can be saved in various formats (JPEG, PNG, etc.) with customizable compression, making it ideal for both basic adjustments and professional workflows within its free image resizer for Windows.

Steps for bulk resize images on Windows:

1. Download and install GIIMP app on Windows OS.

2. Go to ​​File > Batch Image Manipulation​​.

3. Click ​​Add Images​​ and select all the files/folders you want to resize.

4. Click ​​Add Manipulation​​ > ​​Resize​​ and Set the ​​dimensions.

5. Click ​​OK​​ to save the resize settings.

6. Under ​​Output​​, choose the output Folder​​ where resized images will be saved and file format​​.

7. Click ​​Apply​​ to start resizing. A progress bar will show the status. Once done, check the output folder for your resized images.

You can resize images to 100 kb or even 20 kb with this free image resizer utility. You can adjust the pixels, percentage, or physical units for this purpose.