PostCSS is a tool to transform styles with JS plugins. By @sitnikcode and @evilmartians.

Found out on BlueSky (where many dev communities, including e18e, have moved) that one developer cleaned up the dependencies of postcss-cli. You should join this community too. Fewer deps mean a faster Node.js ecosystem and reduced security risks. bsky.app/profile/v1rtl.site/…
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20 years of my open source experience in my new article, “How to make a popular open-source project,” including lessons learned from creating PostCSS and Autoprefixer. evilmartians.com/chronicles/…
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PostCSS creator @sitnikcode has 20+ years of open source experience with multiple success stories. In this new post, he shares practical steps on how to make your open source popular—and why to make open source at all.

evilmartians.com/chronicles/…
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The web is getting more invasive—how do we fix it? Andrey Sitnik @andreysitnik (of PostCSS fame) will dive into privacy-first architecture, local-first alternatives, and real-world strategies at Svelte Summit Spring 2025.
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PostCSS retweeted
PostCSS 8.5.2 was released. Romain Menke fixed rules position to polish Stylelint DX. Consider supporting him since he does a lot for CSS tooling as postcss-preset-env (CSS polyfills) maintainer: github.com/sponsors/romainme… Just check how much he does: romainmenke.com
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Big thanks to @sanity_io for supporting PostCSS development! Emails like this truly make my day. Do you also want to help open source projects powering your businesses? Support us here: opencollective.com/postcss github.com/sponsors/ai
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PostCSS 8.5 was released with a small feature for using PostCSS to parse styles in HTML, Vue/Svelte components, CSS-in-JS. github.com/postcss/postcss/r…
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PostCSS 8.5 release’s name is “Duke Alloces”, the demon from Ars Goetia (mid-17th book about magic and calling the demons). en.wikipedia.org/wiki/Alloce… PostCSS uses alchemy as a style behind the project. Every release use next demon’s name from Ars Goetia. en.wikipedia.org/wiki/The_Le…
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PostCSS retweeted
Lastly, if you benefit from Stylelint and would like to give back, please consider sponsoring us through GitHub or Open Collective: github.com/sponsors/stylelin… opencollective.com/stylelint Thank you!
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We've worked very hard on becoming the go-to consultancy for developer tool startups keeping developer happiness at the forefront of our thinking: - Our 117 open source projects reached 168K+ GitHub stars (PostCSS by @andreysitnik hitting 29K) powering developer workflows
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The best Christmas gift for any open source maintainer is a donation. Thanks a lot @WorkleapHQ! opencollective.com/browsersl… github.com/ai/
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PostCSS retweeted
Ever want to use CSS variables in media queries? There's no native solution yet, but there's a W3C proposal for this: env() ✨ Install the PostCSS plugin for a glimpse at the future:
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16.11.0 is out! It adds a new `report*` option, a new option to the `media-query-no-invalid` rule, and fixes a lot of bugs, including with the reported ranges of many rules. stylelint.io/CHANGELOG#16110
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I got a very nice letter from Vercel. They donated $2000 on GitHub Sponsors for my open source. It really motivates to develop further. Thanks a lot! github.com/sponsors/ai
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It is important to support open source contributors. For instance, Romain does a lot for PostCSS, Stylelint, and postcss-preset-env. github.com/sponsors/romainme…
Thank you @sitnikcode for supporting my work on OSS ❤️ You already do so much for the dev community with the tools you create and continue to maintain. It is very much appreciated what you do and that you also sponsor the ecosystems you are part of!
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PostCSS 8.4.48 was released. @romainmenke fixed position calculation in error/warnings method. It will fix @stylelint reports in some cases. github.com/postcss/postcss/i… Release’s alchemist by Jacopo de’Barbari.
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PostCSS retweeted
The creator of Autoprefixer, @postcss, @browserslist, and @logux will have a talk on the DevFest! @sitnikcode himself 👏
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Thanks to @cocopon for supporting webdev ecosystem! They donated $181 to PostCSS support at our Open Collective. It is really important for us. opencollective.com/postcss
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