HackerRank

What it does

Evaluate developers on realistic repos, not algorithmic puzzles. See how candidates plan, build, and review with AI in an agentic IDE. Start free.

We help thousands of companies hire and upskill the next generation of developers, and millions of developers to become one. The future is human plus AI. We’ve entered a new era of software development where human and AI build together. This changes the skills you need as a developer, and the way companies engage, hire, and upskill technical talent. In short, this changes everything. We’re embracing these changes with you, and we’ve reinvented our products to meet the moment. Over 26 million developers have joined the HackerRank community to certify their skills, practice interviewing, and discover relevant jobs. An AI Mock Interviewer can help you prepare, while our QuickApply agent puts…from hackerrank.com

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  HackerBracket2014 · ▲219

  A community for sharing hacks

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  hacker.surf2014 · ▲89

  All the hacker jobs in one place

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  BetaPage 2.02017 · pitchwall.co · ▲224

  Community of Hackers and Makers

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  hackajob2015 · hackajob.com · ▲89

  Get Hired by Hacking

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  Codecrap2014 · codecrap.com · ▲93

  Where developers go to laugh and cry

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  HackerX2014 · typeform.com · ▲83

  Hacker and Maker community on Slack

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  /dev/null▲487

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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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 · 28d 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 · 26d ago · github.com

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  OpenBot▲362

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

  Dev tools · 23d 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 · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Periscope▲1,049

  Explore the world through someone else's eyes

  Life & fun · 2015 · periscope.tv

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  Product Hunt for Chrome▲898

  The best new products, every day, in your browser

  Life & fun · 2015

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  Amazon Dash Button▲772

  Place it. Press it. Get it.

  Commerce · 2015 · amazon.com

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  $Cashtags by Square▲722

  Get paid via $cashtags for things you do online or in person

  Commerce · 2015 · t.co

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  Gyroscope▲713

  A new OS for the human body

  Growth · 2015 · gyrosco.pe

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  Freebie.Supply▲669

  Awesome free things for entrepreneurs & startups

  Growth · 2015 · growth.supply