BuiltWith

What it does

Web technology information profiler tool. Find out what a website is built with.

Identify companies adopting competitor tools in real time. Build high intent lists using tech signals, spend, and lifecycle events, pushed directly into your CRM and fully exportable. Track Verified AI Adoption - Discover companies using AI agents, MCP servers, llms.txt, AI SDKs, inference APIs, and modern developer infrastructure while integrating directly with BuiltWith using our AI-ready APIs, MCP tools, and developer SDKs. Use 20+ years of adoption data to validate investments. Spot emerging winners and declining incumbents across 127k+ technologies. BuiltWith® covers 127,607+ internet technologies which include analytics, advertising, hosting, CMS and many more. See how the internet…from builtwith.com

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  BuiltWith2014 · builtwith.com · ▲11

  Find out what websites are built with

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  Built With2014 · chromewebstore.google.com · ▲95

  See Technologies Behind Websites in Real-Time

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  HiCast2015 · ▲71

  Find out who builds the web

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  SimilarTech2015 · ▲107

  Find out what technology top site and competitors are using

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  Uptain2021 · uptain.xyz · ▲116

  Identify technologies on websites

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  TheNeeds2014 · theneeds.com · ▲64

  Discover the best of the web based on your interests

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  SimCity, but with Permits▲899

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 1d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 13d ago · tanzaniaeducationproject.org

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  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 14d ago · bigwords.page

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  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

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  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 12d ago · carrierexplode.com

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  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• UA
  Untrusted, a JavaScript adventure game you play by modifying its source▲555

  Life & fun · 2014 · alex.nisnevich.com

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  GitBook – Build beautiful programming books using GitHub and Markdown▲442

  GitBook is a knowledge platform that connects your docs, product and users, answers user questions, and identifies knowledge gaps. Docs-as-code support & AI insights included.

  AI · 2014 · gitbook.io

• SP
  Super Planet Crash▲349

  Life & fun · 2014 · stefanom.org

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  Alfred▲320

  Never use your mouse again

  Life & fun · 2014 · alfredapp.com

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  Sketch 3▲297

  Liquid Glass redesign, an all-new Inspector, and more

  Work · 2014 · sketch.com

• BA
  Betatype - A freelance site where clients pay $3,500 for prototypes▲285

  Life & fun · 2014 · betatype.io