Open-source alternatives to React Native Skia

This project is a graphics library for React Native that provides a cross-platform vector rendering engine. It maps SVG XML elements to native graphics APIs, allowing for the creation of scalable shapes and custom illustrations that maintain visual consistency across mobile and web environments. The library functions as a mapper that converts standard SVG markup into declarative component structures. It enables the creation of interactive vector interfaces by providing components that can detect and respond to user touch events. Its capability surface includes drawing basic geometric primiti

The Book of Shaders is an interactive educational guide and curriculum for learning GLSL fragment shader programming to create procedural graphics and visual effects. It provides a structured learning path and a categorized reference guide for data types, built-in functions, and mathematical operations used in shader development. The project features a web-based shader sandbox and interactive editor that allows for real-time iteration and visualization of GLSL code. Users can experiment with procedural art and share their results via unique URLs. The curriculum covers a wide range of graphic

This repository is a comprehensive collection of functional 2D and 3D demo projects and implementation samples for the Godot Game Engine. It serves as an interactive tutorial and reference library, providing a working codebase to demonstrate how to apply engine features in real-world scenarios. The collection focuses on practical implementation guides, covering a wide array of technical capabilities from basic engine fundamentals to advanced rendering and scripting techniques. It allows users to study the application of node-based composition, asset pipelines, and game logic through direct ex

NanoVG is a hardware-accelerated 2D drawing engine and C graphics primitive library. It provides a lightweight renderer designed for high-quality antialiased vector graphics using an OpenGL backend. The engine specializes in the construction and rendering of complex geometric paths. It supports the definition of precise shapes using lines, beziers, and arcs, with integrated winding rules to create hollow areas and composite shapes. The library covers a broad range of vector graphics capabilities, including path composition and the rendering of antialiased shapes. These tools enable the devel

Skia is a high-performance 2D graphics rendering library used for drawing text, geometries, and images on digital surfaces. It functions as a hardware-accelerated graphics engine that offloads drawing operations to the GPU, a vector graphics processor for SVG and complex paths, and a typography engine for shaping and drawing characters with Unicode support. The project provides a cross-platform image codec for encoding and decoding standard image formats into raw pixel data across multiple operating systems. It also enables the development of user interfaces that maintain visual consistency a

Leafer UI is a high-performance HTML5 canvas rendering engine and 2D vector graphics library. It utilizes a hierarchical scene tree to manage shapes, paths, and text, providing a toolkit for building interactive canvas applications and expansive infinite canvases. The engine is designed as a cross-platform canvas toolkit that decouples core logic from the drawing API, allowing it to run across web, mobile, server, and mini-program environments. It distinguishes itself by providing specialized tools for interactive graphic editor development, including hit detection, event bubbling, and transf

Vello is a cross-platform graphics library and GPU-accelerated 2D vector renderer. It functions as an engine for drawing high-performance 2D scenes, rendering scalable vector graphics files, and playing Lottie animations. The project utilizes GPU compute shaders for rasterization and stores vector geometry in a GPU-resident scene graph to minimize data transfer. It employs a tiled rendering architecture and parallelized path rendering to process complex imagery across diverse graphics APIs. The library provides hardware-accelerated compositing and enables the output of rendered 2D visual dat

node-canvas is a server-side 2D vector graphics and image processing library for Node.js. It provides a server-side implementation of the HTML5 Canvas API using the Cairo graphics library as its rendering engine to draw shapes, text, and paths. The library enables the programmatic generation of dynamic images and the creation of scalable vector graphics and PDF documents. It supports the registration of custom and system fonts for typography rendering and allows for the import of image assets via local paths, buffers, data URIs, and remote URLs. Capabilities include low-level pixel manipulat

Blotter is a WebGL text rendering engine and fragment shader text visualizer. It provides a system for composing and previewing stylized text effects by applying custom GLSL fragment shaders to text elements on a web canvas. The project includes a shader editor for defining and updating custom shader logic and uniforms in real time. This interface allows for the creation of unique visual styles and the modification of rendering variables without reloading the underlying logic. The engine incorporates performance optimizations for WebGL rendering, utilizing texture atlas batching and a single

This is a comprehensive library of code examples and reference implementations for building cross-platform user interfaces with Flutter. The project provides a collection of demo applications and guides designed to illustrate the implementation of design patterns, animation techniques, and testing workflows. The repository features specific demonstrations for native integration, including examples of embedding modules into existing native applications, using platform channels, and bridging native code with the framework. It also serves as an animation reference, providing implementations for

Flame is a 2D game engine for Flutter and Dart. It provides a component-based game framework for managing entities and their lifecycles through a hierarchical architecture, alongside a dedicated system for game asset management and input handling. The engine distinguishes itself through a specialized integration layer for external physics engines to handle rigid body dynamics and collision detection. It also features a high-performance task model that uses isolates to offload heavy computations and prevent main thread blocking. The framework covers a broad range of capabilities including vis

lottie-react-native is a library for rendering Lottie JSON animations as native graphics within a cross-platform mobile framework. It serves as a JSON-based animation renderer that parses design-exported files into high-performance vector animations on mobile devices. The framework uses a GPU-accelerated vector animation implementation to offload rendering to the device processor, reducing CPU load to maintain smooth motion. It provides a cross-platform motion framework for controlling animation playback, layout scaling, and dynamic color modifications across different mobile screens. The li

Lygia is a GLSL shader library providing a specialized suite of tools for color science, image filtering, noise generation, and implicit surface geometry. It serves as a collection of reusable functions for fragment shaders to handle color space conversion, image processing, and geometric rendering. The project is distinguished by its focus on cross-language shader management, allowing reusable functions to be synchronized across different shading languages to ensure consistent graphics behavior across multiple engines. It also implements a system for remote shader dependency resolution, fetc

Processing is a creative coding environment and Java graphics library designed for writing visual sketches that produce interactive 2D and 3D graphics and animations. It runs on the Java Virtual Machine, using an OpenGL-based hardware-accelerated rendering pipeline, and operates on a sketch-based execution model where programs run as continuous loops of setup and draw functions with event-driven input handling for keyboard, mouse, and window interactions. The environment distinguishes itself as a cross-platform sketch tool that runs visual programs unchanged on desktop, web, Android, and Rasp

PixiEditor is a multi-functional graphics suite that serves as a pixel art editor, a node-based graphics editor, and a vector graphics tool. It functions as a shader-based painting tool and 2D animation software, providing a comprehensive environment for creating raster images and frame-by-frame motion. The project is distinguished by its use of node-based workflows for building complex image transformations, visual effects, and custom digital brush designs. It utilizes a shader-based brush engine and a node graph to define personalized painting tool behaviors and procedural animations. The

learningPixi is an educational resource and instructional guide focused on 2D web graphics and interactive media development. It provides a structured curriculum and tutorials for building 2D games and visual applications using the Pixi.js rendering engine and WebGL for hardware-accelerated graphics. The project covers specialized workflows for sprite animation, including the use of texture atlases and spritesheet frame extraction. It also provides guidance on implementing game state management for scene transitions and rectangular collision detection systems to trigger interactive events. T

SkiaSharp is a cross-platform 2D graphics engine and .NET wrapper for the Skia Graphics Library. It provides a rendering API for drawing shapes, paths, and bitmaps across mobile, desktop, and server environments, functioning as both a raster graphics library and a hardware-accelerated drawing API. The project enables the creation of custom vector drawings and dynamic UI components through precise control over strokes, fills, and mathematical transformations. It also supports programmatic image manipulation, allowing for the loading and modification of pixel arrays. Its capabilities cover bas

This project is a Godot shader library consisting of a collection of GLSL-based visual effects for 2D and 3D graphics. It serves as a resource for improving game visual quality through custom shader files and demo scenes. The library is organized into three primary areas: a 2D sprite effect gallery for visuals such as water simulations and palette swapping, a 3D material shader collection featuring outlines and dissolve effects, and a post-processing shader suite for full-screen effects like Gaussian blur and color inversion. The collection covers a range of capabilities including 2D sprite

Phaser is a cross-platform 2D web game engine and framework designed for creating interactive experiences that run on desktop and mobile web browsers. It serves as a GPU-accelerated rendering library and WebGL graphics engine for building two-dimensional games using HTML5 Canvas and WebGL. The engine features a dual-backend rendering pipeline that allows developers to switch between rendering paths. It distinguishes itself through high-performance graphics capabilities, including GPU-driven sprite batching for large-scale image management, a dynamic lighting system with self-shadows, and the

This project is a cross-platform animation library for React Native that provides a declarative engine for building high-performance user interfaces. It functions by offloading animation logic and interaction processing to the native UI thread, ensuring that visual transitions remain smooth and responsive even when the main application thread is under heavy load. The library distinguishes itself through a specialized architecture that transforms standard functions into units capable of executing directly on the native thread. It utilizes shared-memory synchronization to maintain consistent da

Lottie-android is a native vector animation engine and library for Android that parses JSON specification files into high-fidelity animations. It functions as a JSON animation parser and renderer, translating After Effects exported data into native draw calls to maintain design fidelity on mobile devices. The library supports dynamic user interface control by allowing the modification of animation properties, such as colors, text, and shape attributes, during runtime playback. It also integrates with system-level accessibility settings to adjust playback and visibility in accordance with redu

Murder is an entity component system game engine designed for 2D game development. It provides a core framework for managing game objects through an ECS architecture and includes a dedicated 2D game editor for asset management and real-time property configuration. The engine features a specialized 2D rendering pipeline supporting pixel art, sprite slicing, and parallax effects. It includes a hierarchical A* pathfinding system for agent navigation and a comprehensive asset management system for serializing and loading game resources. The project covers a broad range of capabilities, including

Pixel is a 2D game library and graphics engine for the Go programming language. It provides a hardware-accelerated renderer for drawing sprites, geometric shapes, and text, utilizing an optimized system of batching and transformation matrices. The project functions as a comprehensive toolkit for two-dimensional interactive applications, combining a graphics engine with a 2D vector math library for affine transformations and coordinate space projections. It includes a dedicated input manager that tracks keyboard presses and mouse movements using a polling-based system rather than asynchronous

Macroquad is a Rust game engine and 2D graphics library designed for developing cross-platform games and graphical applications. It functions as a rendering engine that enables the deployment of a single codebase to desktop, mobile, and web targets. The engine utilizes an immediate mode rendering model, which allows for the creation of user interfaces and game worlds that render in a single pass within the main application loop. This approach is paired with hardware-accelerated 2D rendering and automatic draw call batching to optimize the display of geometry across different hardware devices.

WebGLStudio.js is a browser-based IDE and graphics editor for creating 3D scenes, textures, and animations using WebGL. It functions as a spatial design environment where users can arrange 3D meshes and assets directly within the browser to build interactive visual experiences. The project features a visual shader graph editor that allows for the development of custom rendering effects and post-processing shaders through a node-based interface. It also includes a virtual file system for organizing 3D models, audio, and textures, and uses URL-state serialization to share entire project configu

gg is a Go 2D graphics library and vector graphics engine designed for programmatic image generation. It provides a canvas rendering API to create custom 2D shapes, paths, and visual assets, which can be exported as PNG and JPG files. The toolkit enables the construction of complex geometry using Bezier curves and custom paths. It supports a variety of rendering operations, including filling and stroking paths, applying linear and radial gradients, and utilizing surface patterns. The library covers a broad range of capabilities, including text rendering with word wrapping and dimension measu

lottie-ios is a vector graphics engine and animation framework for iOS that renders animations exported from After Effects as native visual elements. It functions as a renderer that converts animation data into high-fidelity native shapes to maintain small file sizes on mobile devices. The framework provides tools for managing playback, looping, and real-time property updates. It allows for the modification of colors, positions, and keyframe properties of active animations to respond to application state changes. The system parses JSON-based animation data and maps keyframes to native layers