Life & fun · November 24, 2012
site-wide HTML5 and CSS3 validator
site-wide HTML5 and CSS3 validator launched on November 24, 2012 with 5 votes, #167 of 543 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 13 years on.
Does a similar job
all alternatives →
- IQImprove quality of CSS and XPath locators for browser testing2019 · davertmik.github.io · ▲8
- ACAwsm.css – Simple CSS library for semantic HTML markup2016 · igoradamenko.github.io · ▲5
ValidateHTMLMar 2026 · validatehtml.com · ▲2Free HTML, CSS, JSON & XML validator with quality scores
Matt's DOM Utils—a modular HTML DOM library with wide browser support2012 · fortybelow.ca · ▲6
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Source: Show HN post ↗
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