Super fast image compressor keeps a copy of the original and allows you create profiles for different needs. Supports WebP and has a resizing option.

An image compressor with all the options up front. It keeps the original and has the option to resize.

Ingenious little app lets you right-click on an image, choose Copy Image, then save it into the folder of your choice as a PNG.

Convert videos to high-quality GIFs.

Capture videos, or anything else that moves on your screen, as an animated gif with one-click stop and start. Allows for precision editing and sharing with friends.

Assemble a mosaic of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.

Drag and drop .jpeg, .png and .gif images and see them instantly slim down. This open source app works by finding the best compression parameters and removing unnecessary comments and colour profiles. Which is just what you want to make websites load faster.

View and manage your photos and videos in gallery mode, full screen mode or with thumbnails. Select to apply actions: move, copy, trash or open in Finder. Compare photos with split screen.

Use a ruler to measure stuff on your screen in pixels or ems. Make as many rulers as you like. Great for web designers.

Have mindless fun taking bizarre photos that have been circulating around the Internet — annoying Facebook girl, for example — and applying your own slogans to them. Or, as the website version puts it: “Bluntly offensive statements and careless advice with animal icons.”

Open source digital compositor for VFX and motion graphics. The software features powerful keying and 2D tracking tools that are staple for all current film production visual effects. Flexible roto and rotopaint tools can generate unlimited layers of masks, mattes and shapes.

A quick and easy way to browse photos in a folder, optionally as a slideshow. Some JPEG transformations are also available.

This colour picker lets you check out contrast ratios and confirm WCAG accessibility compliance. Choose from formats like formats like hex, RGB, HSB, or HSL. You can set up a global hot key to access it from anywhere.

All those hundreds of icons on thriftmac have had their transparent pixels trimmed to the artwork itself. I found a cheap paid app to do this, but now QuickCrop does the same for free.

Create a grid or layout on the full screen or the window of your choice. Can also put lines where you want them and save them as sets. Includes a zoom tool and is highly customizable.

This open source alternative to the likes of QuarkXPress and InDesign supports CMYK colour, separations, ICC colour management and versatile PDF creation. It may take some getting used to, but there is a strong community of users to offer support.

Create, view and edit colour palettes. Supports import of Adobe swatch exchange (.ase) and color list (.clr) files, wide-gamut colours, and multiple formats: RGB, OKLCH and hex.

A reader for e-graphic novels using the .cbr/.cbz graphic novel file format for a collection of page images. Features include multi-page reading modes, a thumbnail browser, and support for both right-to-left and left-to-right reading (for manga).

Create colourful risographs suitable for prints and magazines. Extensive documentation available for this distinctive art form.

A nice app version of the color picker that comes with your Mac. It can be invoked from the menu bar or record your own shortcut. It gives values in hex, hsl and rgb.

Drag and drop one image, many images or a folder of images to be resized and output as jpeg or png. Options for margin, canvas, destination, resolution, watermark and more.

Drag and drop a folder of photos to batch create thumbnail versions. You can set the format, sizing, compression, antialiasing and sharpening.

Take a grainy old picture, and make it both bigger and better with the help of AI.