Open Source Software for Graphic Design
Photo
Gimp
GIMP is a free open-source raster-based image editing program. GIMP provides the tools you need to get the job done whether you're a graphic designer, photographer, artist, or scientist.
GIMP's various customization options and third-party plugins might help you increase your efficiency even further.
GIMP has the powerful selection and montage tools, several methods to edit your photos, cropping, noise reduction, and color modification tools, configurable brushes, gradients, and much more. There's also much for experienced users, such as layer masks, bezier curves, filters, and even an animation package.
The interface is very configurable, and the GIMP community has created a plethora of good free plugins. The application is jam-packed with lessons, and there's lots of support to be found in the program's active and helpful community.
Pros:
Free
Advanced tools
Cons:
Non-Destructive Editing
Krita
Krita isn't designed for photo editing; rather, it's designed for digital art, although it can still be used to edit most photos.
It may help you produce comic books by allowing you to draw smooth shapes, vanishing points, complex selection tools, layer masks, and so on.
Krita is Photoshop-compatible, having the ability to open and save.psd files. Photoshop brushes may be imported into Krita. Depending on their settings, certain brushes will import better than others. Not all of them are perfectly transferable.
Krita supports raster animation on a frame-by-frame basis. This feature only provides basic animation tools. The tool, on the other hand, is excellent for generating quick, basic animations.
Pros:
Free
Non-Destructive Editing
Cons:
Not enough tool for photo manipulation
Vector
Inkscape
Inkscape is the best open-source illustration software and the best Adobe Illustrator replacement.
If you are an illustrator, designer, web designer, or simply wish to produce vector artwork, Inkscape is for you.
Inkscape has a number of tools as well as a variety of shapes, paths, text, markers, clones, transparency effects (alpha), transformations, gradients, patterns, and groups.
Simply said, if you can do it in Adobe Illustrator, you can probably do it in Inkscape, and the next forthcoming version of Inkscape is closer to Illustrator than ever before, with planned capabilities like shape builder and snapping making Inkscape fantastic for a piece of free vector software. At the very least, give it a go and see how you like it; if it's not for you, you haven't lost anything.
Pros:
Styling objects
Supports various types of file formats
Operation depends on the path
Manipulation in the object can be done effectively
Cons:
Learning curve
SVG-Edit
SVG-edit is a free and open-source vector graphics editor that runs on the web. It may be used to create and edit Vector Graphics graphics directly from a web browser, without the need for any program installation.
Pros:
Browser-based tool
Cons:
Not enough feature
3D
Blender
Pros:
Free
Great community
So many free tutorials
Professional grade
Cons:
Not easy
Art
Krita
Krita is a fantastic digital painting graphics designer that focuses heavily on digital painting and illustration. It is mostly utilized in the production of comic books. It is a free program with powerful templates and functionality.
Pros:
All tools for digital painting
Professional grade
Cons:
Slow