Image Editors

Upscayl
Free
Free and Open Source AI Image Upscaler.
ImageMagick
Free
A software suite to create, edit, compose, or convert bitmap images.
Pinta
Free (Open Source)
A free, open source program for drawing and image editing.
Caesium Image Compressor
Free
Compress your pictures up to 90% without visible quality loss.
Darktable
Free
An open source photography workflow application and raw developer.
DMesh
Free
Turns images into techy artwork.
Paint.NET
Free
A free image and photo editing software for PCs.
GIMP
Free (Open Source)
Create and alter photos and graphics manually or via scripting.
LightZone
Free
Open-source digital darkroom software.
Light Image Resizer
Free
Right click to easily resize pictures.
FreeVimager
Free
A Free & Fast Image Viewer and Editor for Windows.
Image Resizer
Free
Lets you resize images by right-clicking.
Chasys Draw IES
Free
A suite of applications including a layer-based image editor with animation, vista-style icon support and super-resolution via image stacking, a multi-threaded image file converter and a fast image viewer.
FastStone Photo Resizer
Free
An image converter and renaming tool.
Microsoft Image Composite Editor
Free
An advanced panoramic image stitcher.
ON1 Photo RAW
Free Trial
RapidRAW
Free
A beautiful, non-destructive, and GPU-accelerated RAW image editor built with performance in mind.
RIOT
Free
A free image optimizer that will let you to visually adjust compression parameters while keeping minimum filesize.
AndreaMosaic
Free
Create photographic mosaics made with your own pictures.
Bzzt! Image Editor
Free
Compress, rotate, resize and convert images in bulk from an easy drag-and-drop interface.