30 open-source projects similar to oddbird/susy, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
Susy is a responsive grid framework and layout calculation engine for Sass. It provides a toolkit for building fluid or static column structures and gutter spacing directly within stylesheets, automating layout mathematics during the compilation phase to produce precise CSS properties. The system distinguishes itself through a layout calculation engine that translates human-readable shorthand syntax into structured data for mathematical functions. It also includes a grid visualization tool that generates inline SVG background overlays to programmatically verify and debug grid alignment. The
Neat is a Sass grid framework and responsive layout system used to build fluid, column-based web architectures. It provides a structured approach to managing layout properties and global design settings through a central configuration map and a toolset of Sass mixins and functions. The system is distinguished by its ability to handle nested grid architectures, allowing flexible grids to be placed inside other grid containers while maintaining precise alignment and gutter control. It also includes development tools for frontend layout debugging that render background guide lines to visualize c
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
Bootflat is a front-end component library and CSS framework extension that implements a flat-design aesthetic for web application styling. It provides a set of reusable interface elements and a mobile-first grid system to facilitate responsive web design. The project integrates design and development through a PSD-driven workflow, providing professional Photoshop component sets and curated color palettes for interface prototyping. Visual customization is handled via variable-based theme overrides for colors and fonts. The library covers a broad range of UI components, including form elements
North is a responsive web design methodology and Sass-based CSS architecture framework. It provides a system for building mobile-first user interfaces using fluid grids and progressive enhancement techniques to ensure a consistent experience across different browser capabilities and screen sizes. The project features a standardized CSS naming system that uses Sass mixins to programmatically generate class names, distinguishing between components, layouts, and states. It also functions as a frontend project scaffolding tool, providing a generator to bootstrap new environments with pre-configur
Flat-UI is a collection of responsive UI toolkits and CSS libraries used to build websites and interactive web components with a flat design aesthetic. It provides a responsive frontend toolkit and a web component library based on the Bootstrap framework to create adaptive layouts. The library focuses on implementing a consistent flat design through predefined hex color palettes and typography styles. It replaces standard browser elements with customized visual styles to remove skeuomorphic depth. The toolkit covers a broad range of interface capabilities, including customized form elements
Carbon is an enterprise design system that provides a comprehensive collection of reusable UI components, design tokens, and guidelines for building professional web applications. It functions as a CSS framework that enforces a unified design language across projects through standardized typography, spacing, and color palettes. The system utilizes a platform-agnostic design token system to maintain visual consistency across different technologies. This includes centralized management of brand colors, motion easing curves, and a curated library of accessible SVG icons. The framework covers a
This project is an HTML email framework and compiler designed to build responsive emails using a high-level syntax that transforms into table-based layouts. It functions as an HTML-to-table compiler and CSS inliner, ensuring that simplified markup is converted into the complex nested structures and inline attributes required for cross-client compatibility. The framework features a responsive email grid system and Sass-based styling, allowing the use of variables to manage colors, typography, and spacing. These tools enable custom brand theming and the creation of fluid layouts that adapt to v
This project is a Sass implementation of the Bootstrap framework, providing a collection of responsive, mobile-first UI toolkits and layout systems. It serves as a Sass UI library that allows for the creation of custom CSS frameworks through the use of a preprocessor to generate browser-ready stylesheets. The framework is distinguished by its deep customization capabilities, enabling users to override default themes and visual variables using Sass variables and mixins. It utilizes a modular import system, allowing specific components to be selectively included to control the final CSS bundle
BOOTSTRA.386 is a retro CSS framework and web UI kit designed to implement nostalgic user interfaces that mimic the aesthetic of vintage computer systems and old-school operating systems. It provides a collection of pre-styled components and styling engines to maintain a consistent legacy appearance across different screen sizes. The toolkit includes a customizable theme engine and a web-based interface for modifying visual properties and colors. It also features a responsive grid layout system that organizes web content into columns and rows that adapt to various device dimensions. The proj
Fomantic-UI is a component-based CSS library and frontend design system used to build consistent, responsive user interfaces. It functions as a CSS framework and responsive UI toolkit, providing a structured approach to managing typography, color palettes, and spacing. The project enables the development of custom UI components and the implementation of unified design systems across web applications. It provides a variable-driven theme compilation process to customize visual styles and a build-time system to compile selected components into production CSS bundles. The toolkit covers a broad
Spectre is a comprehensive CSS framework and UI utility toolkit designed for building responsive web interfaces. It functions as a CSS component library that provides pre-styled interface elements and helper classes to facilitate frontend UI development. The framework is distinguished by a pure-CSS component architecture that avoids dependence on external JavaScript runtimes. It utilizes a SASS-based build pipeline that supports class prefixing, stylesheet pruning, and a variable-based theme system for creating custom design systems. The project covers a wide range of layout and interface ca
Lost is a CSS grid system and PostCSS plugin designed to define column widths and positions using mathematical calculations for responsive screen designs. It functions as a build-time tool that processes custom grid rules into browser-compatible CSS layouts. The framework transforms non-standard layout declarations into native CSS Grid and Flexbox properties. It uses a PostCSS-based pipeline to calculate exact coordinates and column widths, ensuring that the resulting styles are compatible with standard web browsers. The project operates as a preprocessor-agnostic middleware layer, allowing
Papercss is a CSS UI framework and document-style design system used to build responsive web page layouts. It functions as a Less-based CSS library that applies a paper-like aesthetic and structured typography to give web pages the appearance of physical documents. The project also incorporates a utility-first CSS library model for rapid styling. The framework is distinguished by its ability to automate visual decorations, such as applying rotating border styles and shadow effects to child elements. It utilizes a Less-based variable system and modular stylesheet compilation, allowing users to
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
Atomic Layout is a declarative framework for building responsive user interfaces in React. It functions as a layout engine that abstracts complex grid structures into reusable components, allowing for the creation of hierarchical spatial distributions without the need for manual media queries. The library distinguishes itself by mapping visual layout regions to component structures through dynamic grid-template-area generation. It utilizes a property-based system where components accept specific suffixes to automatically trigger responsive style adjustments based on viewport width. By employi
vCard Personal Portfolio is a static HTML and CSS template that provides developers with a ready-to-deploy personal portfolio website. It is built as a frontend portfolio template, delivering a responsive portfolio website that showcases a developer's projects and skills in a layout optimized for all screen sizes. The project employs a mobile-first design approach, where styles are authored for mobile viewports as the baseline and then enhanced for larger screens using progressive min-width media queries. Its CSS-grid-based responsive layout arranges page sections using CSS Grid with flexible
Blueprint-css is a CSS framework that provides a set of predefined styles and a responsive grid system for building consistent web page layouts and typography. It includes a browser style reset to remove default browser styling, ensuring a uniform visual starting point across different environments. The framework features a column-based responsive grid system that automatically adapts web content across various screen sizes and devices. It also includes a dedicated print stylesheet to optimize the appearance of web content specifically for physical printing. The project covers typography sta
Metro UI is a progressive front-end framework for building reactive single-page applications with a Metro-style design language. It provides a component-based UI library with over 150 prebuilt interface elements, a reactive state model that automatically updates the DOM when application data changes, and a responsive grid layout system for mobile-first web development. The framework uses an HTML-first approach where interactive interfaces are assembled by adding custom HTML attributes to elements, eliminating the need for manual JavaScript glue code. It includes a hash-based SPA router for na
WebSlides is an open-source tool for creating HTML presentations, landing pages, and longform articles directly in the browser. It provides a full-screen slide deck system where each section element becomes an individual slide with horizontal and vertical navigation, keyboard shortcuts, touch gestures, and remote presenter support. The project distinguishes itself by offering over 40 pre-built slide components such as covers, cards, quotes, and flexible block grids that can be assembled without writing custom layout code. It includes built-in support for embedding rich media like background i
Flexboxgrid is a responsive CSS framework and layout engine based on CSS3 standards. It provides a grid system that uses the flexbox model to arrange page elements into flexible, proportional grids that adapt to different screen sizes and device resolutions. The framework implements a float-free responsive design, utilizing a media-query breakpoint system to adjust layouts and column counts based on viewport width. It employs percentage-based column sizing and negative-margin guttering to maintain consistent spacing and fluid scaling across various displays. The system maps layout configurat
ring-ui is a web UI component library used to build consistent web applications through a shared set of reusable interface elements and standardized styles. It provides a foundation for web interface development, specifically supporting the creation of visual experiences for software extensions and plugins. The library includes a grid-based layout system for organizing screen content and maintaining responsiveness across different window sizes. It features a CSS variable theming system for applying consistent visual identities, a data table framework for rendering large datasets, and a form i
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 collection of React components that implement a responsive grid system using CSS Flexbox and CSS Modules. It provides reusable building blocks for constructing fluid interfaces that organize page content into flexible rows and columns, which automatically adjust their size and alignment based on viewport dimensions. The library distinguishes itself by decoupling style definitions from component logic, which facilitates consistent rendering across both server-side environments and client-side runtimes. By utilizing CSS Modules, it encapsulates styles into local scopes to prev
This project is a markdown static site generator and technical documentation portal designed for software engineering education. It functions as a client-side searchable knowledge base that converts structured markdown files into static HTML pages. The system utilizes a CSS-grid responsive layout to organize documentation headers, sidebars, and content areas across different screen sizes. It employs file-system routing to map the directory structure of source folders directly to the website URL paths. The platform is used for technical knowledge management, including the organization of prog
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 comprehensive technical reference for web favicon specifications, providing the image dimensions and file formats required for browser and operating system icons. It serves as a platform icon configuration sheet for mobile touch icons and desktop home screen tiles. The guide includes specialized instructions for implementing theme-aware icons using SVG media queries to support light and dark mode appearances. It also provides a reference for managing browser icon caches to force updates during development and production. The reference is delivered as a static site generated
UIkit is a CSS front-end framework and accessible UI component library designed for building responsive web interfaces. It provides a comprehensive set of styling classes and modular components alongside a JavaScript interaction toolkit for managing behavioral elements. The framework includes native support for internationalized web interfaces, featuring multi-locale text translation and right-to-left layout directions. It employs a responsive layout engine that uses flexible grids, adaptive breakpoints, and container widths to align content across different screen sizes. The toolkit covers
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
Email-Blueprints is a modular email framework and HTML template library used to assemble custom email structures from a collection of reusable design patterns and blocks. It provides a system of flexible components for creating consistent email designs across diverse clients. The framework enables the creation of responsive layouts that adapt to various screen sizes and fixed-width designs for legacy email client compatibility. It also supports dynamic content templates that utilize merge tags to inject recipient-specific data for personalization. The project covers the development of cross-