Alternatives and similar repositories for validator

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

• csstree / stylelint-validator
  Stylelint plugin to validate CSS syntax
  ☆93Updated last year
• posthtml / posthtml-extend
  Template extending (Jade-like)
  ☆44Updated 2 years ago
• gucong3000 / postcss-syntax
  Automatically switch PostCSS syntax based on file extensions
  ☆45Updated 4 years ago
• MoOx / reduce-css-calc
  Reduce CSS calc() function at the maximum
  ☆55Updated last year
• posthtml / posthtml-cli
  CLI for PostHTML
  ☆28Updated 3 years ago
• AleshaOleg / postcss-sass
  A Sass parser for PostCSS, using gonzales-pe. https://www.npmjs.com/package/postcss-sass
  ☆92Updated 8 months ago
• csstools / css-typed-om
  Use CSS Typed Object Model in the browser
  ☆103Updated 5 years ago
• ben-eb / css-values
  Validate CSS property value pairs.
  ☆64Updated 9 years ago
• unifiedjs / unified-engine
  Engine to process multiple files with unified
  ☆59Updated last month
• known-css / known-css-properties
  List of standard and browser specific CSS properties.
  ☆129Updated last week
• retextjs / retext-smartypants
  plugin to implement SmartyPants
  ☆55Updated 10 months ago
• posthtml / posthtml-expressions
  Use variables, JS-like expressions, and even markup-powered logic in your HTML.
  ☆122Updated last year
• sindresorhus / is-url-superb
  Check if a string is a URL
  ☆85Updated 2 years ago
• niksy / stylelint-no-restricted-syntax
  Stylelint rule to disallow specified syntax.
  ☆21Updated last year
• mohlsen / check-engine
  A utility to check your engines for Node.js
  ☆30Updated 9 months ago
• syntax-tree / unist-util-find
  utility to find a node
  ☆23Updated 7 months ago
• gucong3000 / postcss-jsx
  PostCSS syntax for parsing CSS in JS literals
  ☆75Updated last year
• dperini / nwsapi
  Fast CSS Selectors API Engine
  ☆133Updated 2 weeks ago
• wooorm / property-information
  Info on the properties and attributes of the web platform
  ☆42Updated 4 months ago
• csstree / vscode-plugin
  CSSTree validation plugin for VS Code
  ☆19Updated 11 months ago
• robatwilliams / es-compat
  *** DEPRECATED*** Check JavaScript code compatibility with target runtime environments
  ☆70Updated last month
• sindresorhus / srcset
  Parse and stringify the HTML <img> srcset attribute
  ☆140Updated this week
• g-harel / npmfs
  javascript package inspector
  ☆101Updated 10 months ago
• jonathantneal / dsc
  A 0.3kB JavaScript library for creating DOM structures (JSX compatible, JSDOM compatible)
  ☆47Updated 6 years ago
• unifiedjs / unified-args
  Create CLIs for unified processors
  ☆34Updated 8 months ago
• jsdoctypeparser / jsdoctypeparser
  Parser module for JsDoc or Closure Compiler format type-annotation.
  ☆54Updated 2 years ago
• developit / rollup-plugin-preserve-shebang
  Rollup plugin to automatically preserve shebangs in entry modules.
  ☆48Updated last year
• webcomponents / template
  Minimal polyfill for <template>
  ☆69Updated 6 years ago
• vfile / vfile-reporter
  utility to create a report for a vfile
  ☆37Updated 8 months ago
• feross / fromentries
  Object.fromEntries() ponyfill (in 6 lines)
  ☆69Updated 4 years ago