PureRef 
PureRef is a powerful, easy-to-use software program designed to help you organize and manage your reference images. It is a free, lightweight, and user-friendly image reference tool that helps you quickly access and compare multiple reference images while creating digital artwork.
                
                    
                        PureRef offers efficient, intuitive organization for all types of reference images.
                    
                    
                Features: 
- Intuitive Interface: PureRef's intuitive interface makes it easy to navigate, allowing you to quickly find the images you need for your project. 
- Manage Multiple Images: PureRef allows you to manage multiple images at once, so you can easily compare and contrast different reference images. 
- Image Preview: PureRef displays previews of images so you can quickly scan through and find the image you need. 
- Customizable Backgrounds: PureRef allows you to customize the background of your workspace, so you can easily see your images on a variety of backgrounds. 
- Copy & Paste Images: Easily copy and paste images from PureRef into other applications or programs.
- Resize Images: Quickly resize images to fit your needs. 
- Zoom & Pan: Easily zoom in and out of images and pan around them. 
- Reorder Images: Reorder images with a simple drag and drop. 
- Image Transparencies: Easily adjust the transparency of images to create custom views. 
- Image Rotation: Quickly rotate images to the angle you need. 
- Image Cropping: Easily crop images to the size you want. 
- Image Effects: Add effects to images to give them a unique look. 
- Multiple Workspaces: Create multiple workspaces for different projects. 
- Drag & Drop Images: Easily drag and drop images from your computer into PureRef. 
- Keyboard Shortcuts: Use keyboard shortcuts to quickly access and use PureRef's features. 
- Support for Many File Formats: PureRef supports a variety of image file formats, including JPEG, PNG, TIFF, and more. 
- Cross-Platform Support: PureRef is available for both Windows and Mac. 
- Free & Open Source: PureRef is completely free and open source, so you can use it without any cost.