Standard-HTML – Check if your HTML is compliant with W3C standards

What it does

Check if your HTML is compliant with W3C standards - abereghici/standard-html

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  Email.md – Markdown to responsive, email-safe HTMLMar 2026 · emailmd.dev · ▲380

  Turn markdown into responsive, email-safe HTML that renders perfectly across every client.

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  VMail2021 · vmail.leopard.in.ua · ▲91

  Check HTML & CSS compatibility with email clients

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  Get pinged when standards hit 90% browser support2015 · frontendhq.com · ▲199
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  Page & IFrame AnalyzerFeb 2026 · chromewebstore.google.com · ▲3

  Validate W3C, WCAG & Responsive Design in Pages & IFrames

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  markuplint2021 · markuplint.dev · ▲62

  Linter that gives peace of mind in your markup

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  WebCodeSniffer2018 · webcodesniffer.net · ▲114

  Validate your code for consistency with a coding standard.

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  /dev/null▲490

  a social network for devs

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  Run full iOS 16.5 firmware on Android Devices▲443

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 19h ago · github.com

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  Loops▲1,556

  Measure whether a campaign drove the desired outcome

  Dev tools · 2023 · loops.so

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  Tally 2.0▲1,479

  The simplest way to create forms for free

  Dev tools · 2023 · tally.so

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  Klu AI▲1,462

  Your data, unified and interactive

  AI · 2023 · klu.so

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  FirstHR▲1,063

  All-in-one HR platform for founders with dreams and teams

  Work · 2023 · firsthr.app

• 
  DevHunt▲945

  Open source Product Hunt for dev tools

  Dev tools · 2023 · devhunt.org

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  Yarnit 2.0▲918

  GenAI app to create personalized content

  AI · 2023 · yarnit.app