Top 7 inline-css Open-Source Projects

critical

11 9,950 7.1 JavaScript

Extract & Inline Critical-path CSS in HTML pages

Project mention: Enhance WASM: Back End Agnostic SSR for Web Components | news.ycombinator.com | 2024-04-11

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
email-templates

3 3,623 5.2 JavaScript

Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @breejs.
SurveyJS

surveyjs.io
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Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
premailer-rails

3 1,663 0.0 Ruby

CSS styled emails without the hassle.
css-scope-inline

6 421 8.9 HTML

🌘 Scope your inline style tags in pure vanilla CSS! Only 16 lines. No build. No dependencies.

Project mention: Nue CSS: A Scaleable Alternative to Tailwind, BEM, and CSS-in-JS | news.ycombinator.com | 2024-03-21
inline-css

1 417 4.3 JavaScript

Inline css into an html file.
go-premailer

0 132 1.7 Go

Inline styling for html mail in golang
startpage

1 19 0.0 HTML

simple custom start page with inline-css and nerd fonts glyphs (by junguler)
WorkOS

workos.com
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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-04-11.