Gimp - GNU Image Manipulation Program, A photoshop alternative

•    C

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GIMP is the GNU Image Manipulation Program. It has many capabilities. It can be used as a simple Paint program, with full suite of painting tools including Brush, Pencil, Airbrush, Clone, etc. It supports Photo Enhancement, Digital Retouching, Image format converter, Animation etc.

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Inkscape - Vector Graphics Editor

•    C++

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Inkscape is a vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format. It supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more.

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ImageSharp - A cross-platform library for the processing of image files; written in C#

•    CSharp

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ImageSharp is a new, fully featured, fully managed, cross-platform, 2D graphics API. Without the use of System.Drawing we have been able to develop something much more flexible, easier to code against, and much, much less prone to memory leaks. Gone are system-wide process-locks; ImageSharp images are thread-safe and fully supported in web environments. Built against .Net Standard 1.1 ImageSharp can be used in device, cloud, and embedded/IoT scenarios.

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p5 - JS client-side library for creating graphic and interactive experiences, based on the core principles of Processing

•    Javascript

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p5.js is a JavaScript library that starts with the original goal of Processing, to make coding accessible for artists, designers, educators, and beginners, and reinterprets this for today's web.Using the original metaphor of a software sketchbook, p5.js has a full set of drawing functionality. However, you're not limited to your drawing canvas, you can think of your whole browser page as your sketch! For this, p5.js has addon libraries that make it easy to interact with other HTML5 objects, including text, input, video, webcam, and sound.

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jspaint - 🎨 Classic MS Paint, ＲＥＶＩＶＥＤ + ✨Extras

•    Javascript

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The goal is to remake MS Paint (including its little-known features), improve on it, and to extend the types of images it can edit. So far, it does this pretty well.Ah yes, good old paint. Not the one with the ribbons or the new skeuomorphic one with the interface that can take up nearly half the screen. And sorry, not the even newer Paint 3D.

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Leaflet.draw - Vector drawing and editing plugin for Leaflet

•    Javascript

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Adds support for drawing and editing vectors and markers on Leaflet maps. Supports Leaflet 0.7.x and 1.0.0+ branches.

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go-chart - go chart is a basic charting library in native golang.

•    Go

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Package chart is a very simple golang native charting library that supports timeseries and continuous line charts. The v1.0 release has been tagged so things should be more or less stable, if something changes please log an issue.

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drawingboard.js - A canvas based drawing app that you can integrate easily on your website.

•    Javascript

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This is a canvas based drawing app that you can integrate easily on your website. drawingboard.js consists of a blank canvas surrounded by a few UI elements that control it: a color picker, a pencil, a paint can, an eraser, a pencil size chooser, navigations and reset buttons.

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Macaw - Powerful and easy-to-use vector graphics Swift library with SVG support

•    Swift

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Macaw is a powerful and easy-to-use vector graphics library written in Swift. Modern designs contain tons of illustrations and complex animations. Mobile developers have to spend a lot of time on converting designs into native views that will be resizable for different screens. With Macaw you can reduce development time to a minimum and describe all graphics in high level scene elements. Or even render SVG graphics right from your design tool with Macaw events and animation support.

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FreeCAD - An Open Source parametric 3D CAD modeler

•    C++

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FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. FreeCAD is based on OpenCASCADE, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API.

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pencil - The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use

•    Javascript

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Only OSX 64bit 10.9 and later are supported. Windows 7 and later are supported, older operating systems are not supported (and do not work).

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SingleDivProject - ☝️One <div>. Many possibilities.

•    HTML

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☝️ One <div>. Many possibilities. This project focuses on exploring all the possibilities that can be done with a single <div> element using CSS only.

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OpenJSCAD - Set of modular, browser and command line tools for creating parametric 2D & 3D designs with Javascript

•    Javascript

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OpenJsCad.org is a more up-to-date OpenJsCAD frontend where you can edit .jscad files either locally or online via JS editor (built-in). A few functions are available to make the transition from OpenSCAD to OpenJSCAD easier (scad-api built-in), as well CLI (command-line interface) for server-side computations with NodeJS.

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PolygonDrawingUtil - A compact Android utility for constructing and drawing rounded regular polygons

•    Java

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A compact Android utility for constructing and drawing rounded regular polygons. This video was captured using the sample application in this repository. It provides convenient controls for exploring PolygonDrawingUtil's capabilities.

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GoJS - JavaScript diagramming library for interactive flowcharts, org charts, design tools, planning tools, visual languages

•    Javascript

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GoJS is a JavaScript and TypeScript library for creating and manipulating diagrams, charts, and graphs. GoJS is a flexible library that can be used to create a number of different kinds of interactive diagrams, including data visualizations, drawing tools, and graph editors. There are samples for flowchart, org chart, business process BPMN, swimlanes, timelines, state charts, kanban, network, mindmap, sankey, family trees and genogram charts, fishbone diagrams, floor plans, UML, decision trees, pert charts, Gantt, and hundreds more. GoJS includes a number of built in layouts including tree layout, force directed, radial, and layered digraph layout, and a number of custom layout examples.

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Krita - Digital painting application

•    C++

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Krita is a free and open source digital painting application. It is for artists who want to create professional work from start to end. Krita is used by comic book artists, illustrators, concept artists, matte and texture painters and in the digital VFX industry.

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Archimedes: The open CAD

•    Java

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Archimedes is a free and open source CAD (Computer Aided Design) software. It is a robust system built over Eclipse's Rich Client Platform fully based on plug ins. This means it is easily extensible but also has a pretty thin core that allows you to select the features you need and drop the other ones easily.

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MyPaint - Simple drawing and painting program

•    Python

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MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets. Its main features are a highly configurable brush engine, speed, and a fullscreen mode which allows artists to fully immerse themselves in their work.

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ImplicitCAD - A math-inspired CAD program in haskell. CSG, bevels, and shells; 2D & 3D; gcode generation

•    Haskell

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ImplicitCAD is a programmatic CAD program, implemented in haskell. Unlike traditional CAD programs, programmatic CAD programs use text descriptions of objects, as in programming. Concepts like variables, control structures and abstraction are used, just as in programming. Generally, objects in programmatic CAD are built with Constructive Solid Geometry or CSG. Unions, intersections and differences of simpler shapes slowly build the object. ImplicitCAD supports all this and much more.

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Openscad - The Programmers Solid 3D CAD Modeller

•    C++

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OpenSCAD is software for creating solid 3D CAD models. Unlike most free software for creating 3D models (such as Blender) it does not focus on the artistic aspects of 3D modelling but instead on the CAD aspects. Thus it might be the application you are looking for when you are planning to create 3D models of machine parts but pretty sure is not what you are looking for when you are more interested in creating computer-animated movies.

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