Open-source alternatives to React Native Render Html

CssToInlineStyles is a CSS inliner for HTML emails that converts stylesheets into inline style attributes on HTML elements. It functions as a style resolver and transformation engine, mapping CSS selectors to HTML tags to ensure consistent visual rendering across diverse email clients and providers. The tool calculates final computed styles by applying specificity and inheritance rules before injecting the resolved properties directly into the style attributes of the corresponding HTML elements. It utilizes DOM-based style calculation and selector mapping to determine which declarations apply

NativeBase is a comprehensive toolkit of accessible components and responsive design frameworks used to build consistent mobile and web applications. It provides a cross-platform UI component library and a React Native component framework that enable the creation of layouts across Android, iOS, and the web from a single codebase. The system is distinguished by a responsive design system that automatically adjusts layouts and global themes to fit different screen sizes and color modes. It utilizes a utility-based styling approach, allowing developers to apply visual styles directly through com

react-syntax-highlighter is a component for rendering source code with syntax highlighting in React applications. It acts as a wrapper for the PrismJS and Highlight.js engines to provide formatted code display and language-specific colors. The project provides a customizable code block renderer that supports custom DOM injection, line numbering, and inline styling. It allows users to replace default HTML tags with custom React components to control how code is injected into the document object model. The library covers code presentation management through visual themes and line numbering. It

Imaginary is a self-hosted HTTP server for image processing that applies transformations like resizing, cropping, rotating, and format conversion through URL parameters. It operates as a stateless request-response pipeline, processing images fetched from remote URLs or served from a local directory without requiring client-side dependencies. The server distinguishes itself through its security and access control capabilities, offering optional API key validation, HMAC-signed URL verification, and remote origin whitelisting to restrict which image sources are permitted. It also provides a heal

This project is a cross-platform user interface framework that maps mobile-native component primitives to standard web elements. It enables developers to build consistent applications that function across both mobile and web environments by providing a unified library of components and shared logic. The framework distinguishes itself through a specialized style engine that converts JavaScript object-based declarations into optimized, scoped CSS at runtime. It also features a responsive layout engine that implements a flexbox-based system, ensuring that interfaces adapt dynamically to differen

This repository contains the HTML specification, which defines the core standards for web page structuring, content organization, and document rendering. It establishes the fundamental algorithms for state-machine-based tokenization, tree construction for the document object model, and origin-based security isolation. The specification provides a framework for defining custom elements with independent lifecycles and registries. It also details the requirements for cross-document communication, session history management, and the synchronization of interface properties with content attributes.

HedgeDoc is a self-hosted documentation platform and real-time collaborative Markdown editor. It serves as a digital workspace for creating shared technical notes and managing knowledge through a privately hosted system. The platform enables multiple users to write and format Markdown documents simultaneously in a shared live environment. It integrates external identity providers such as LDAP, SAML, and social platforms via OAuth2 to manage user access and authentication. The system includes capabilities for content publishing, including exporting notes to GitHub Gists and generating automat

tailwind-rn is a utility-first mobile UI kit and integration framework that allows the use of Tailwind CSS utility classes to style React Native components. It functions as a responsive mobile styling engine that transforms CSS style definitions into JSON objects compatible with native mobile view styling. The project provides a CSS-to-JSON style converter and a responsive engine that adapts styles based on screen breakpoints, dark mode preferences, and viewport orientation. This enables the implementation of mobile responsive design and state-based styling without writing manual stylesheets.

Kraken is a cross-platform UI framework and web standards runtime designed to build native applications using standard web markup and styling. It utilizes a Flutter-based rendering engine to process HTML and CSS, producing visually consistent user interfaces across mobile and desktop platforms. The system distinguishes itself by compiling the runtime to machine code and employing a synchronous rasterization pipeline to ensure animations and scrolling match the fluidity of native applications. It further integrates high-performance native components directly into a web-standard document object

This project is a cross-platform mobile app template and UI starter for Android and iOS. It provides a foundation for building consistent mobile interfaces from a single declarative codebase. The architecture implements a reactive state management framework using BLoC and RxDart to decouple business logic from the user interface. It also includes an internationalized mobile architecture to manage multi-language support and regional localization across the application. The codebase covers capabilities for mobile client implementation, including the rendering of remote content, local data pers

Valdi is a cross-platform native UI framework that compiles declarative TypeScript code into native platform views. It functions as a declarative UI engine and multi-platform frontend toolchain designed to achieve high performance by avoiding web views. The framework features a native bridge binding tool that generates type-safe bindings between TypeScript and native languages, allowing direct access to platform APIs. It supports a hot-reload development workflow, enabling real-time updates to the user interface across platforms without requiring full project recompilation. The system includ

Uno is a cross-platform development framework used to build native mobile, web, desktop, and embedded applications from a single C# and XAML codebase. It provides a native UI framework that renders visual elements across different operating systems using shared layout and styling rules. The platform features a hot reload development environment that allows for the modification of code and layouts in a running application without restarting the process. It supports a dual-mode rendering system, offering a choice between a shared cross-platform canvas and native platform controls. The framewor

Ionic Framework is a cross-platform UI toolkit and hybrid app framework used to build native-quality mobile and progressive web applications using HTML, CSS, and JavaScript. It functions as a web component library that enables the deployment of a single codebase across iOS, Android, and the web. The framework features a platform-adaptive design system that automatically switches the visual style of components to match the design patterns of the host operating system. It utilizes a web-component-based architecture with CSS custom properties for global theming and specialized bindings to synchr

SPlayer is a cross-platform music player and local library manager. It serves as a client for self-hosted media servers including Jellyfin, Navidrome, and Emby, while also functioning as a cloud music drive player and a tool for organizing local audio files. The application distinguishes itself through real-time audio spectrum visualization and word-by-word lyrics synchronization. It features a dynamic interface that automatically adjusts its color palette based on the dominant colors of album artwork. The software covers a broad range of media capabilities, including local metadata tag edit

imutils is a computer vision utility toolkit and image processing library designed to simplify common manipulation tasks using OpenCV. It serves as an image analysis helper and geometry transformation tool for automating visual data processing. The toolkit provides specialized capabilities for maintaining image integrity during transformations, such as resizing images while preserving aspect ratios and rotating images without cropping corners. It also includes tools for four-point perspective warping to create top-down views and the extraction of topological skeletons from binary images. The

The official rendering library for PAG (Portable Animated Graphics) files that renders After Effects animations natively across multiple platforms.

This project is a technical catalog and cross-platform mobile styling reference used for building mobile user interfaces. It serves as a mobile UI property catalog and a translation guide that maps standard web styling concepts to the JavaScript object notation required by mobile frameworks. The reference provides specific guidance on mobile flexbox layout for arranging elements and controlling alignment. It further translates CSS concepts into mobile-compatible notation to assist with the migration of web styling to mobile environments. The documentation covers a broad range of visual styli

React 360 is a framework for building immersive virtual reality experiences that run in a web browser using a declarative React component model. It functions as a browser-based VR platform and a WebGL VR renderer, enabling developers to create 360-degree panoramic and stereoscopic content without requiring native code installation. The framework provides a declarative VR component library that describes VR scenes as nested React components, with props mapping to 3D objects, lights, and camera positions. It handles user input from VR controllers, gaze tracking, and mouse events through a unifi

This project is a multi-vendor marketplace platform designed for food, grocery, and courier delivery services. It provides a comprehensive system for managing the entire lifecycle of a delivery request, including customer ordering, vendor menu management, and logistics coordination between customers, vendors, and delivery agents. The platform distinguishes itself through a cross-platform architecture that bridges web-based application code into native mobile environments for deployment on standard app stores. It utilizes real-time socket communication to synchronize location updates and order

Shattered Pixel Dungeon is an open-source roguelike dungeon crawler built as a turn-based strategy game. It features procedurally generated levels, hundreds of collectible items, and permadeath mechanics, all rendered from a single Java codebase that runs on Android, iOS, and desktop platforms. The game offers six distinct hero classes, each with branching subclass trees, endgame abilities, and talent points for deep character customization. Players battle over 60 enemy types, 30 traps, and 10 bosses across five dungeon regions, while managing equipment, enchantments, and alchemy-crafted gear

React-Native-Elements is a cross-platform mobile UI toolkit and component library designed for the React Native framework. It provides a system of pre-styled visual components to build consistent user interfaces across mobile and web platforms using a single shared codebase. The framework enables the development of applications that run across different operating systems and web browsers while maintaining a unified look and feel. It supports rapid UI prototyping and application design by providing reusable building blocks that reduce the need to create every custom component from scratch.

react-native-svg is a cross-platform vector graphics engine and rendering library designed for mobile and web applications. It functions as an SVG to component converter, transforming standard vector markup into renderable components using a compatible component-based architecture. The library enables the rendering of scalable vector graphics across diverse platforms using a single set of components. It ensures visual consistency between web and mobile environments by sharing graphics and providing a unified API. The system covers the creation of custom icons and complex shapes through compo

Build performant, native and cross-platform desktop applications with native React powerful CSS like styling.🚀

aptv is a cross-platform m3u IPTV player and multi-platform media client designed for streaming live television channels. It functions as a cloud-synced media manager that stores playlists and application settings in the cloud to maintain consistent configurations across different devices. The application provides a native viewing experience across mobile, desktop, television, and automotive interfaces. It includes an electronic program guide to display scheduled broadcasts and channel information, alongside support for live television catch-up to play back previously aired programs. The sys

KittenTricks is a cross-platform mobile starter kit and UI library for building applications for iOS and Android. It provides a foundational set of production-ready, accessible components and pre-built screens to accelerate the bootstrapping of mobile interfaces. The project features a dynamic mobile theming system that allows for the management and switching of light and dark color schemes at runtime. This framework enables real-time updates to the visual appearance of the interface without requiring an application restart. The library implements a comprehensive design system to ensure visu

Aidea is a cross-platform AI client and self-hosted infrastructure project. It consists of a Flutter application and a containerized backend system designed to provide a unified interface for interacting with large language models and AI image generation services. The project functions as a self-hosted AI gateway, allowing users to manage and deploy private instances of language and image models on their own hardware. This architecture enables the routing of diverse data queries through a standardized API gateway to multiple AI providers while maintaining control over data storage and server

This project is a cross-platform mobile icon library and renderer that provides scalable vector icon components for mobile and web applications. It functions as a vector font integration tool, utilizing a rendering layer that maps vector fonts to mobile components and web CSS to ensure consistent iconography across different platforms. The library includes a configuration-driven pipeline to convert SVG files and CSS stylesheets into usable icon font packages. It supports the integration of proprietary font files and glyph maps, allowing for the use of brand-specific iconography through custom