Image Editors

Paint.NET
Free
A free image and photo editing software for PCs.
Upscayl
Free
Free and Open Source AI Image Upscaler.
Light Image Resizer
Free
Right click to easily resize pictures.
Microsoft Image Composite Editor
Free
An advanced panoramic image stitcher.
RawTherapee
Free (Open Source)
A free RAW converter and digital photo processing software.
ImageMagick
Free
A software suite to create, edit, compose, or convert bitmap images.
ON1 Effects Free
Free
FastStone Photo Resizer
Free (For Personal Use)
An image converter and renaming tool.
Photoline
Free Trial
A professional image editor which offers creatives a mostly non-destructive workflow.
Leonardo
Free Trial
LightZone
Free
Open-source digital darkroom software.
GIMP
Free (Open Source)
Create and alter photos and graphics manually or via scripting.
PixBuilder Studio
Free
A free image editing software program for digital photo editing, images processing, and resizing.
Darktable
Free
An open source photography workflow application and raw developer.
DMesh
Free
Turns images into techy artwork.
Pinta
Free (Open Source)
A free, open source program for drawing and image editing.
RIOT
Free
A free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize.
Fotosizer
Free
Resize hundreds of photos in a matter of minutes in a quick and easy way.
Image Resizer
Free
Lets you resize images by right-clicking.
Image Tuner
Free Trial
A compact and efficient tool for mass image resizing, renaming and conversion.