critical

Extract & Inline Critical-path CSS in HTML pages (by addyosmani)

Critical Alternatives

Similar projects and alternatives to critical

  1. Tailwind CSS

    1,459 critical VS Tailwind CSS

    A utility-first CSS framework for rapid UI development.

  2. CodeRabbit

    CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.

    CodeRabbit logo
  3. Bootstrap

    575 critical VS Bootstrap

    The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

  4. storybook

    346 critical VS storybook

    Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

  5. squoosh

    284 critical VS squoosh

    Make images smaller using best-in-class codecs, right in the browser.

  6. styled-components

    Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅

  7. Nuxt.js

    207 critical VS Nuxt.js

    Discontinued Nuxt is an intuitive and extendable way to create type-safe, performant and production-grade full-stack web apps and websites with Vue 3. [Moved to: https://github.com/nuxt/nuxt]

  8. Nutrient

    Nutrient – The #1 PDF SDK Library, trusted by 10K+ developers. Other PDF SDKs promise a lot - then break. Laggy scrolling, poor mobile UX, tons of bugs, and lack of support cost you endless frustrations. Nutrient’s SDK handles billion-page workloads - so you don’t have to debug PDFs. Used by ~1 billion end users in more than 150 different countries.

    Nutrient logo
  9. lighthouse

    167 critical VS lighthouse

    Automated auditing, performance metrics, and best practices for the web.

  10. Bulma

    169 critical VS Bulma

    Modern CSS framework based on Flexbox

  11. PostCSS

    95 critical VS PostCSS

    Transforming styles with JS plugins

  12. purgecss

    52 critical VS purgecss

    Remove unused CSS

  13. stylelint

    49 critical VS stylelint

    A mighty CSS linter that helps you avoid errors and enforce conventions.

  14. linaria

    49 critical VS linaria

    Zero-runtime CSS in JS library

  15. terser

    31 critical VS terser

    🗜 JavaScript parser, mangler and compressor toolkit for ES6+

  16. styled-system

    34 critical VS styled-system

    ⬢ Style props for rapid UI development

  17. stylus

    31 critical VS stylus

    Expressive, robust, feature-rich CSS language built for nodejs

  18. theme-ui

    22 critical VS theme-ui

    Build consistent, themeable React apps based on constraint-based design principles

  19. lite-youtube-embed

    A faster youtube embed.

  20. penthouse

    Generate critical css for your web pages

  21. phooos

    Pure HTML Out-Of-Order Streaming (PHOOOS) without JavaScript

  22. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better critical alternative or higher similarity.

critical discussion

Log in or Post with

critical reviews and mentions

Posts with mentions or reviews of critical. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-09-12.
  • Rethinking CSS in JS
    32 projects | dev.to | 12 Sep 2024
  • Enhance WASM: Back End Agnostic SSR for Web Components
    4 projects | news.ycombinator.com | 11 Apr 2024
    If the link element is placed inside of the shadow DOM, then it's not render blocking and you will experience a flash of unstyled content. That's what the lit docs are referring to.

    If you place the link element inside the head of your document, then it is render blocking, which means the browser has to make two round trips to the server if the CSS file isn't in the cache before it render (one to download the HTML file, and then another after it discovers your link element, and has to download the corresponding CSS file).

    > The best from both worlds is to embed a lightweight basic CSS stylesheet inline and the rest in cache-able external CSS files.

    This is the absolute optimal way of doing it. You would have to analyze your styles to see which styles are applied to elements above the fold, then extract them and put them in an inline style tag. The rest of the styles would have to be downloaded via a link tag, but you'd have to place the link tag at the very end of the HTML body tag to prevent the browser from blocking as soon as it encounters the link element or alternatively use JavaScript to add the link element after the page has been rendered. There are tools to automate this for static sites [1], but doing this for dynamically generated HTML is kind of a pain, and I've found that browsers parse CSS so quickly that the overhead of just inlining it all is very low in many cases.

    [1] https://github.com/addyosmani/critical

  • Frontend developers: stop moving things that I’m about to click on
    3 projects | /r/programming | 25 Nov 2022
    CLS is a pain in the arse. Extract your critical CSS and inline it https://github.com/addyosmani/critical although doing critical CSS badly makes things worse.
  • Critical – Extract and Inline Critical-Path CSS in HTML Pages
    1 project | news.ycombinator.com | 11 Nov 2022
  • Google Page Speed Insights and Magento 2
    2 projects | dev.to | 7 Nov 2022
    There is a tool that allows generating critical CSS and determining which CSS is critical and which is not. It helps to separate it into files, and there is also an npm package for that.
  • Critical CSS? Not So Fast
    5 projects | news.ycombinator.com | 10 Sep 2022
    I am a fan of CSSWizardry and yet I find this post misleading. The examples shown are ways NOT to do frontend performance engineering.

    The current best performant way to load JS is asynchronously as documented at https://web.dev/efficiently-load-third-party-javascript/.

    And the best way to load CSS is with Critical Path CSS + Async CSS as documented at https://web.dev/defer-non-critical-css/.

    The easiest way to generate Critical CSS is https://github.com/addyosmani/critical where you may suggest multiple resolutions.

    I have found https://github.com/addyosmani/critical-path-css-tools to be a great resource to master critical path CSS which improves page render speeds. It helps build fast rendering sites, sometimes even sub-second renders given you have a low latency backend.

  • How to Make Your Page Load Faster
    1 project | dev.to | 1 Sep 2022
  • Using Vite with Critical CSS in a way that supports users with JavaScript disabled or unavailable
    2 projects | dev.to | 28 Apr 2022
    A while ago I'd noticed that the version (or configuration) of the Critical packaged used by my Netlify build plugin was missing that fallback, so I manually added it to my Eleventy template, no big deal.
  • 3 tips that improve landing page speed
    2 projects | /r/SaaS | 28 May 2021
    Defer or async css/js files — Don’t make leads wait for unnecessary files to download before showing something. In the case of CSS, there are a few tools for in-lining only what’s above-the-fold into your html.
  • My web performance journey with Nuxt, Storyblok & Netlify
    8 projects | dev.to | 17 Apr 2021
    Consider automating the process of extracting and inlining "Above the Fold" CSS using the Critical tool.
  • A note from our sponsor - CodeRabbit
    coderabbit.ai | 19 Feb 2025
    Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR. Learn more →

Stats

Basic critical repo stats
12
10,070
5.8
19 days ago

Sponsored
CodeRabbit: AI Code Reviews for Developers
Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
coderabbit.ai

Did you know that JavaScript is
the 3rd most popular programming language
based on number of references?