191 Open Source Drawing Software Projects

Virtual whiteboard for sketching hand-drawn like diagrams

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

HTML5 canvas based smooth signature drawing

:art: Diagram as Code for prototyping cloud system architectures

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

🎨 Classic MS Paint, ＲＥＶＩＶＥＤ + ✨Extras

:camera: A modern, cross-platform, 2D Graphics library for .NET

🍞🎨 Full-featured photo image editor using canvas. It is really easy, and it comes with great filters.

go chart is a basic charting library in native golang.

✏️ Storyboarder makes it easy to visualize a story as fast you can draw stick figures.

LibreCAD is a cross-platform 2D CAD program written in C++11 using the Qt framework. It can read DXF and DWG files and can write DXF, PDF and SVG files. The user interface is highly customizable, and has dozens of translations.

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

Lazy Line Painter - A Modern JS library for SVG path animation

MyPaint is a simple drawing and painting program that works well with Wacom-style graphics tablets.

☝️One <div>. Many possibilities.

📈 A responsive, composable react charting library with a hand-drawn style.

Using Dijkstra's algorithm ("finding the shortest paths between nodes in a graph") to draw maps :earth_africa:.

📐⚙ 2D vector line drawing and shape modeling for CNC and laser cutters.

A canvas in your browser. Literally.

A small JS library for beautiful drawing and handwriting on the HTML Canvas.

iOS painting and drawing library based on Metal. 神笔马良有一支神笔（基于 Metal 的涂鸦绘图库）

🍂🗺️ The most powerful leaflet plugin for drawing and editing geometry layers

online image editor

Pencil2D is an easy, intuitive tool to make 2D hand-drawn animations. Pencil2D is open source and cross-platform.

A compact Android utility for constructing and drawing rounded regular polygons.

Minimalist Vector Tool

Simple GTK# Paint Program

Publication-ready NN-architecture schematics.

A View on which you can freely draw, customizing paint width, alpha and color, and take a screenshot of the content. Useful for note apps, signatures or free hand writing.

🎨 A React Native <Sketch /> component for touch-based drawing.

CLI app to convert ASCII arts into hand drawn diagrams.

A collaborative drawing program

Draw tools for mapbox-gl-js

Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots.

An open source library that lets your users draw on things - mark up images with text, shapes, etc.

Tools for exploring OpenVG

Sketch Tool for React based applications, backed up by FabricJS

Convert images to vectorized line drawings for plotters.

Canvas is a Go drawing library based on OpenGL or using software rendering that is very similar to the HTML5 canvas API

Simple android library to present an animated ferris wheel

React Component for drawing in canvas

Vector and illustration framework for macOS

Tart - draw ASCII art in the terminal with your mouse!

A drawing application for the GNOME desktop.

Capture signature view in Swift and export it as a vector graphics or bitmap

Code examples and notes for displaying data with C#

🎨 Snapchat-style color picker in Swift

Simple drawings using vector graphics; Cairo "for tourists!"

Software for plotters - especially the wall-hanging polargraph also called Makelangelo.

A simple, lightweight drawing framework written in Swift

🎨 A multi-platform graphic library

Sketch have a lot of basic functions to develop a drawing app for iPhone. Anyone can easily create drawing iOS Application.

✏️ Nice modular interactive 2D drawing library

AutoCAD Code Pack: A powerful library that helps you to develop AutoCAD plugins using the AutoCAD .NET API

LibreCAD 3 is a next generation 2D CAD application written to be modular, with a core independent from GUI toolkits. Scripting is possible with Lua.

A toolbox for pick/edit/capture photo or video. Written in Swift.

A GPU-accelerated texture painter written in Godot 3.0

Small, Sharp Sketch Tool

Drawing robot capable of rendering SVG paths over WebSockets. Powered by a Raspberry Pi running Node.js.

Tiny OpenGL3 Wrapper / 3D Engine in C++

A clone of skribbl.io - Play on https://scribblers-official.herokuapp.com/ or

A subclass of UIView which allows you to draw with your fingers.

A library written on node.js for creating math figures on HTMLCanvas in XKCD style.

From Vectors to (sub) Pixels, C# 2D Rendering Library

Graphics editor for Android.

Linux user-space drivers for Huion Graphic Tablets

:art: 一个让你跳过canvas，直接绘图的 2d 绘图库，上手简单，接口简洁，功能丰富.

The software for your friendly painting robot kit!

Modélisation Conceptuelle de Données. Nickel. Ni souris.

Graphic Devices Based on AGG

:pencil: NativeScript plugin to provide a way to capture any drawing (signatures are a common use case) from the device

A drop-in UIGraphicsRenderer port -- CrossPlatform, Swift 4, Image & PDF

An experiment in R to convert photos into single-line-drawings

Some very simple examples to get you started with the Line-us API

Simple CAD program

Modern ANSI & ASCII Art Editor

A library for libGDX that draws simple shapes using a batch.

Proof of concept for a vector drawing app without canvas boundaries.

Sketchpad is fully customisable collaborative whiteboard plugin written in pure JavaScript.

Genetic Algorithms for drawing images

Convenience package for dealing with graphics in my pixel drawing experiments.

A C++ drawing framework for Windows that makes simple graphics programming as fun and easy as the days when computers booted directly to a BASIC prompt

A Quartz/UIKit drawing tool for IOS. Include geometry/Context convenient method, image processing, along path drawing, polygon path, gradient fill, 3D inner outer shadow glow render, gauss blur, animation effect, attributed Text Drawing.

:pencil2: A simple web app to make drawings that are easy to embed, particularly for Notion.so.

An open drawing project

A flutter implementation of drawing app ⦗⦓⦔⦕⦖⦘

A fast (?) random sampling drawing library

A .NET library provides the hardware-accelerated high performance immediate mode rendering functionality via Direct2D API.

A Flutter implementation of the rough.js library

Efficiently create compact tree layouts in Java

Cross-platform single header text rendering library for OpenGL

🎨💪 Modern, modular paint and more! (pre-alpha, not much done yet)

Android library for getting lightweight DrawingActivity into your Android app

A perpetual artwork streaming app. (Website Repo)

pie.js - Photo&Image Editor (OpenSourse analogue of "Pixie - Image Editor")

DrawRacket4Me draws trees and graphs from your code, making it easier to check if the structure is what you wanted.

Image manipulation library

grbl 0.9i with Servo Motor support and CoreXY configuration Used For Crazy Engineer's Drawing Robot

A playground for android developers

Draw a tube or thick line in SceneKit