Open-source alternatives to Packery

This project is a comprehensive collection of web development reference guides and technical cheat sheets. It provides a curated set of markdown-based documentation designed to help developers quickly locate syntax patterns and API examples for common web technologies and programming languages. The repository serves as a specialized reference library covering several distinct technical domains. It includes extensive guides for CSS, focusing on selectors, Flexbox, Grid, and responsive layout properties, as well as a DevOps command reference for Docker, Kubernetes, AWS, Ansible, and general she

This project is a fixed-width CSS layout framework designed to organize web content into a standardized grid of columns and gutters. It provides a set of CSS rules and dimensions that ensure consistent page alignment and spacing across a frontend design grid. The system synchronizes visual design mockups with technical implementations using a 960 pixel width. It includes specialized style sheets that mirror grid alignment to support right-to-left language directions. The framework covers grid management through column implementation and layout spacing control. It further provides design inte

Magic of CSS is a structured tutorial series that teaches web developers advanced CSS layout, typography, and animation techniques through hands-on examples. The course covers the full spectrum of CSS capabilities, from foundational box model and positioning concepts to sophisticated animation and interactive state management, all without relying on JavaScript. The series distinguishes itself by teaching practical, real-world CSS patterns such as inline-block justified grids, percentage-based absolute positioning, table-display vertical centering, and letter-span styling techniques. It demons

Isotope is a JavaScript grid layout library used to create filterable and sortable grids with automatic element positioning in the browser. It functions as a layout engine that calculates absolute coordinates for elements to maintain a dense grid regardless of individual item dimensions. The library features a masonry layout engine that arranges items of varying heights into a compact grid to eliminate vertical gaps. It includes a coordinate-based layout animator for smooth transitions during layout shifts and a CSS selector filtering tool to show or hide elements without reloading the page.

bricks.js is a masonry layout engine and responsive grid layout tool used for arranging fixed-width elements into a packed grid system. It functions as a dynamic element packer that calculates the absolute positions of items based on specific size parameters. The library distinguishes itself through incremental layout integration, utilizing a system that identifies and merges newly added elements into an existing layout without recalculating every item on the page. It also includes a mechanism for tracking browser window dimensions to trigger layout repacks when screen sizes match predefined

React Grid Layout is a draggable and resizable grid system for React that organizes components into a coordinate-based layout. It functions as a responsive layout manager and a serialized grid state engine, providing the tools necessary to create user-customizable workspaces where interface elements can be moved and resized. The system distinguishes itself through breakpoint-driven layout mapping, which adjusts grid configurations based on container width. It utilizes a serialized state model to convert spatial positions and dimensions into data formats for saving and restoring user layouts,

React Grid Layout is a toolkit for building draggable, resizable, and responsive dashboard interfaces. It functions as a coordinate-based grid system that reconciles component positions and dimensions through declarative metadata, allowing developers to manage complex collections of UI elements that users can interact with directly. The library distinguishes itself through an automated packing algorithm that maintains structural integrity by shifting elements to fill gaps and resolving overlaps. It supports responsive design by monitoring container width changes against pre-defined breakpoint

This project is a collection of responsive CSS Grid dashboard templates and a data visualization UI kit. It provides a set of HTML layouts designed for building analytics interfaces and monitoring views for KPIs and business metrics that adapt to different screen sizes. The toolkit is library-agnostic, allowing the connection of static HTML templates to any external data source or third-party charting library without requiring custom adapter code. It uses a template-driven approach to separate the visual structure of the dashboard from the underlying data. The capabilities cover the assembly

Makie.jl is a high-performance Julia data visualization library and hardware-accelerated plotting engine used to create interactive 2D and 3D visualizations. It functions as a reactive visualization framework where plots update automatically via observables and compute graphs, and as a vector graphics generator for high-resolution academic output. The system is distinguished by its backend-agnostic rendering pipeline, which supports OpenGL, WebGL, and ray-traced scenes. It employs a grammar-of-graphics approach to map variables to aesthetic attributes and utilizes a hierarchical scene graph t

This project is a jQuery plugin designed for creating responsive grid interfaces that support interactive drag-and-drop reordering and manual resizing of elements. It provides a framework for managing structured layouts where content can be organized into a grid system that automatically adjusts to maintain visual alignment. The library enables users to customize dashboards by rearranging and scaling widgets through mouse-based interactions. It utilizes a coordinate-based system to detect collisions and ensure that elements snap into valid slots, while providing callback functions to monitor

Skeleton is a lightweight responsive CSS boilerplate and mobile-first framework. It provides a foundation for building mobile-friendly websites through a fluid 12-column grid system, a minimal CSS reset library to normalize browser defaults, and default styling for raw HTML elements. The project emphasizes a mobile-first development approach, using percentage-based widths and predefined media queries to progressively enhance layouts for larger screens. It includes a utility-first library of single-purpose classes to manage common layout tasks such as floating elements, clearing, and width con

react-page is a browser-based visual content editor and schema-driven page builder developed with React and TypeScript. It provides a framework for creating web pages through a what-you-see-is-what-you-get interface, utilizing a responsive twelve-column grid engine for arranging elements via drag-and-drop manipulation. The system features a plugin-based architecture that allows for the integration of custom components. These components are managed through a schema-driven system that automatically generates data entry forms based on predefined property definitions, separating the rendering vie

Draggabilly is a JavaScript drag and drop library used to make DOM elements draggable on desktop and mobile. It serves as a coordinate-based UI tool and interaction library for tracking and setting the horizontal and vertical positions of interface elements during user interaction. The library provides a mobile-ready touch handler that converts mouse and touch movements into element translation. It includes specialized capabilities for restricting movement to specific axes or container boundaries and implements grid snapping to align elements to a predefined pixel grid. The tool manages the

Vue-pure-admin is a Vue 3 admin dashboard template and frontend boilerplate designed for developing backend management tools. It functions as a TypeScript web application scaffold that integrates Vite for the build pipeline and Element Plus for the UI framework. The project provides a responsive admin interface that adapts to both desktop and mobile screens. It is structured as an enterprise frontend architecture to support the creation of scalable professional web applications. The system includes capabilities for bootstrapping backend management systems, optimizing bundle sizes, and deploy

QuestPDF is a C# PDF generation library and layout engine used to create structured documents, reports, and invoices. It utilizes a fluent API and a component-based layout approach to convert code into high-fidelity PDF and XPS files. The library distinguishes itself with a dedicated layout debugger that provides real-time previews, hot-reload capabilities, and visual boundary tools to map rendered elements back to source code. It also functions as an accessibility tool, providing semantic tagging and navigational aids to ensure documents comply with international accessibility and archival s

This project is a CSS layout framework that functions as a responsive UI geometry solver. It replaces traditional static box model calculations with a constraint-based engine that determines element positions and dimensions by evaluating relational rules. The engine distinguishes itself by using a system of linear equations to resolve geometric conflicts, ensuring that all spatial constraints are satisfied simultaneously. It utilizes a shorthand visual syntax to define these relationships, allowing developers to describe complex alignment and spacing requirements through a declarative languag

Svelte Grid is a responsive layout library designed for building interactive, draggable, and resizable dashboard interfaces within Svelte applications. It provides a coordinate-based system that allows users to manipulate the position and dimensions of UI components directly on the screen, ensuring that content blocks remain organized within a structured grid. The library distinguishes itself through a constraint-driven engine that enforces minimum and maximum size boundaries during user interactions, preventing overlapping elements and maintaining layout integrity. It includes built-in suppo

Rebass is a React design system library that provides a collection of theme-driven, responsive UI primitives. It functions as a theme-based layout engine, using a set of stateless components to standardize spacing, typography, and colors across a user interface. The library distinguishes itself by mapping style properties to a central design theme through a styled-system approach. This allows for responsive style mapping where components automatically adapt their appearance based on screen size and provides the ability to swap underlying HTML elements while preserving styling logic to maintai

NativeScript is a cross-platform mobile development framework that enables the creation of native iOS and Android applications using JavaScript or TypeScript. It provides a direct bridge to native platform APIs, allowing developers to invoke native classes, methods, and properties directly from script code while maintaining full access to underlying mobile operating system features. The framework distinguishes itself through its direct native UI rendering, which maps declarative markup components to actual platform-native widgets rather than web-based views. This architecture is supported by

Flutter-html is a markup rendering engine and UI component library that parses static HTML strings and CSS styles into native user interface widgets for cross-platform mobile and desktop applications. Its core architecture manages media controllers, style cascade engines, markup-to-widget translation, and native platform view embedding through modular extension packages. The library supports content styling using cascading style sheet rules, custom element rendering, data tables, mathematical equation rendering, vector graphics, and embedded frames or web browser components. It includes mult

This project is a programming learning roadmap and interactive coding exercise platform. It functions as a markdown-based content site that uses a static site generator to compile instructional guides and technical challenges into a structured interface. The platform provides a client-side progress tracker that utilizes local browser storage to monitor the completion of challenges without requiring a backend database. It organizes educational content through a sequence of coding exercises and instructional videos designed to guide developers through specific technical domains. The system cov

Ant Design is an enterprise-grade component library and design system framework built for developing complex, data-heavy web applications. It provides a comprehensive collection of pre-built, state-driven interface elements that map data properties to rendered components, ensuring consistent interaction patterns and visual language across large-scale projects. The library distinguishes itself through a robust styling architecture that utilizes design tokens and hierarchical configuration providers to propagate global settings like themes, locale, and layout direction. By employing component-l

The AndroidStaggeredGrid library provides a multi-column, masonry-style grid component for Android applications. It arranges items in a staggered layout where rows contain items of varying heights, similar to a Pinterest-style grid. The library supports dynamic column count configuration and includes built-in item interaction handling through tap event callbacks. Key capabilities include adjustable column counts that can be changed at runtime, separate column configurations for portrait and landscape orientations, automatic scroll position restoration across configuration changes, and an empt

CHTCollectionViewWaterfallLayout is a custom layout for iOS collection views designed to organize items of varying heights into a masonry-style grid. It enables the display of dynamic content in multiple columns to optimize screen space and visual flow. The layout allows for specific configuration of column counts and item population directions, including left-to-right, right-to-left, and shortest-column-first rendering patterns. This approach minimizes vertical gaps by placing items into the column with the lowest current height. The system also manages section-level accessories, integratin

Muuri is a JavaScript grid layout library and draggable UI framework used to create responsive grids with drag-and-drop reordering, sorting, and animated filtering. It features a nested grid system that allows full grid instances to be embedded inside other grid items to create hierarchical structures. The library uses a web worker layout engine to offload heavy coordinate calculations to background threads, maintaining interface responsiveness during complex rearrangements. The system provides interactive capabilities for moving items between multiple containers, filtering visibility based

gridstack.js is a JavaScript grid layout library and responsive dashboard framework used to create interactive interfaces with draggable and resizable elements. It functions as a drag-and-drop layout manager and a JSON-serializable layout engine, allowing user-defined interface states to be persisted and restored. The library distinguishes itself through a touch-enabled grid interface and a responsive system that automatically adjusts item placement based on screen breakpoints. It features a collision-based layout engine that manages overlapping coordinates to shift or swap elements, alongsid

SwiftEntryKit is a Swift presentation framework and UI overlay library used to orchestrate banners, pop-up views, and custom modal presentations on top of an iOS application window. It functions as a view orchestrator that manages the lifecycle, animations, and layering of multiple overlapping user interface elements. The framework features a priority-based queueing system to determine the display order and precedence of overlays, ensuring specific elements can override others. It includes a dedicated animation toolkit for translation, scale, and fade transitions, alongside haptic integration