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.
Image Resizer
Free
Lets you resize images by right-clicking.
Light Image Resizer
Free
Right click to easily resize pictures.
FreeVimager
Free
A Free & Fast Image Viewer and Editor for Windows.
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.
CameraBag
Free Trial
Brings a fresh new approach to photo editing.