Alternatives and similar repositories for demos:

Users that are interested in demos are comparing it to the libraries listed below

• captainbrosset / linear-gradient
  A visualization tool for CSS linear-gradients
  ☆16Updated 8 years ago
• ben-eb / postcss-unicode-characters
  An easier way to write unicode-range descriptors.
  ☆20Updated 7 years ago
• hemanth / is-pwa
  Detects if a given URL is a Progressive WebApp (PWA.)
  ☆47Updated 4 months ago
• sneakertack / postcss-playground
  ☆25Updated 9 years ago
• csstools / super-postcss
  Now you’re playing with PostCSS — Super PostCSS!
  ☆14Updated 6 years ago
• oslego / layerstack
  Split an element's multiple CSS backgrounds into separate layers and visualize in 3D.
  ☆8Updated 8 years ago
• antimatter15 / codemirror-jsx
  CodeMirror Mode for React E4X/JSX
  ☆11Updated 9 years ago
• kevva / splice-buffer
  Remove or replace part of a Buffer like Array#splice
  ☆12Updated 7 years ago
• voorhoede / manifiesta
  [POC] Configure and preview your Progressive Web App Manifest.
  ☆19Updated 6 years ago
• kevva / macos-model
  Get your Mac model
  ☆15Updated 8 years ago
• sindresorhus / split-at
  Split a string at one or more indices
  ☆23Updated 3 years ago
• paulirish / viewport-width-visualization
  what do the widths and devices of responsive design look like?
  ☆21Updated 9 years ago
• cvrebert / css-mq-parser
  Tolerant CSS media query parser in JavaScript
  ☆14Updated 3 years ago
• jsconf / 2015.jsconf.eu
  Leaking future secrets
  ☆16Updated last year
• mozilla / pretty-fast
  Pretty Fast is a source-map-generating JavaScript pretty printer, used by the Firefox Developer Tools debugger.
  ☆55Updated 2 years ago
• SaraVieira / 30-30
  30 React Components in 30ish days
  ☆12Updated 7 years ago
• jonathantneal / h-element-spec
  Use contextual headings in HTML
  ☆10Updated 8 years ago
• simurai / duotone-dark-earth-syntax
  A dark brown-orange DuoTone syntax theme
  ☆10Updated 7 years ago
• WICG / overscroll-behavior
  CSS property to control scroll chaining
  ☆21Updated 6 years ago
• phloe / posthtml-static-react
  A PostHTML plugin to render custom elements as static React components.
  ☆20Updated 9 years ago
• sdras / data-in-motion
  My talk about the importance of animation in data visualizations
  ☆16Updated 7 years ago
• ragingwind / chrome-launcher-cli
  Chrome Launcher for CLI
  ☆18Updated 7 years ago
• addityasingh / add-eventlistener-with-options
  A utility function to check if EventTarget.addEventListener supports adding passive events
  ☆9Updated 2 years ago
• reworkcss / rework-vars
  W3C-style CSS variables syntax for Rework
  ☆63Updated 10 years ago
• blasten / AsyncLayout
  WIP: Async Layout components
  ☆12Updated 7 years ago
• dryoma / postcss-media-query-parser
  Media query parser with very simple traversing functionality.
  ☆20Updated last year
• bevacqua / flickr-cats
  A demo page using the Flickr API, ServiceWorker, and plain JavaScript
  ☆49Updated 9 years ago
• cssrecipes / grid
  BEMish grid component
  ☆28Updated 9 years ago
• k1r0s / class-perf
  utility to measure performance between class methods
  ☆8Updated 6 years ago
• chromaui / react-chromatic
  Visual Regression Testing for React
  ☆21Updated 6 years ago