Open Source JavaScript Drawing Software

Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms. The latest stable version of Pencil is 3.1.0 which contains stability fixes and many new features. More details can befound in the releaste notes. Pencil provides various built-in shapes collection for drawing different types of user interface ranging from desktop to mobile platforms. Starting from 2.0.2, Pencil is shipped with Android and iOS UI stencils pre-installed. This makes it even easier to start protyping apps with a simple installation. Starting from 2.0.2 Pencil has even more shape collections included by default. The list of built-in collections now includes general-purpose shapes, flowchart elements, desktop/web UI shapes, Android and iOS GUI shapes.

CompassCAD is a simple, light, yet minimalist 2D-only CAD software. It lowers the barriers for novice CAD users to learn about CAD and sketch their very own design from scratch, and ensures everyone can try CAD. If applicable, it could also be used as a professional software with features such as collaboration (up to 2 persons, more will be added later on), SVG exporting, ready to be printed and shared with your co-workers. CompassCAD has a very small project size bundled in a single file, so your file is ready for distribution without breaking any of your favorite messaging app's file limit.

Web-based drawing program

This is a HTML5 and JS multi-user drawing application for webpages, the goal is to create a no-plugins needed place for users to sketch and converse. The home page is a demo of the latest version.

An endless drawing canvas desktop app made with Tauri (Rust) and React. Pointless is an endless drawing canvas that provides useful features when you're in need of a simple whiteboard/note app. It is build using Tauri (Rust) and React with a pure SVG canvas and local files are saved with brotli-unicode compression to ensure small file sizes.

Simple and basic whiteboard drawing app in html5.