1281 Open source projects that are alternatives of or similar to Butterfly

Opal is a vector drawing library with an API similar to Quartz 2D built on top of Cairo.

Paperwork - OpenSource note-taking & archiving alternative to Evernote, Microsoft OneNote & Google Keep

Modélisation Conceptuelle de Données. Nickel. Ni souris.

A Flutter implementation of the rough.js library

A fast (?) random sampling drawing library

I created this repo to save all my python related language notes

Yet Another Standardfile (standardnotes server) Implementation written in Golang

Simple GTK# Paint Program

svg drawing library.

TryHackMe CTFs writeups, notes, drafts, scrabbles, files and solutions.

HedgeDoc - The best platform to write and share markdown.

A JavaScript library that allows you to draw in a canvas HTML element, straightforward to use and extremely lightweight.

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

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

The most elegant and easiest way to visual you data in playground

Android app - (Deprecated) - New version: https://github.com/standardnotes/mobile

A collaborative drawing program

Notes, Questions, Ideas

A very small class to work with images faster in .net

🚴 iOS面试题 (iOS interview) && iOS Dev Notes ,Git ...

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

Notes for getting to know the Julia programming language in one day.

DrawingBotV3 is a software for creating line drawings from Images

Android开发核心知识点笔记（不断更新中🔥）

🎨 Classic MS Paint, ＲＥＶＩＶＥＤ + ✨Extras

💡 A list of knowledge repositories

Package cairo provides full Go bindings for Cairo, a 2D graphics library.

Note-taking application, write down your thoughts.

🎨 A multi-platform graphic library

🎨 Drawing application for Android made easy

🤪 A list of funny and tricky JavaScript examples

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

Vector graphics software to generate HPGL output to drive a plotter

📚A Java back-end engineer's study notes https://loveincode.github.io/notes

Graphics editor for Android.

An interactive board with plugins focusing on replacing the need of multiple platforms for teaching, presenting, managing or explaining your ideas 🌎

A Beat Saber mod that allows you to draw in the scene

Tool for annotating images

✏️ Learn faster. Study better.

Draw tools for mapbox-gl-js

Useful tools and scripts during Penetration Testing engagements

A simple drawing library in Nim, inspired by p5js

loam code noted in Chinese（loam中文注解版）

Aurelia Datatable, A highly customizable html datatable, build for the Aurelia Framework.

React Component for Mapbox GL Draw

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.

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

A beautiful notes app

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

An unofficial Evernote desktop client for Linux

Simple CAD program

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

procedurally generated fish drawings

👋 ML/DL学习笔记（基础+论文）

🌟 All the cheat-sheets mentioned on my blog in pdf format

Pydrawing: Beautify your image or video.

Mount your Standard Notes as a filesystem.

📖 [译] 数据科学和人工智能技术笔记

A flutter animation UI challenge.

A GPU-accelerated texture painter written in Godot 3.0