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A BuiltWith alternative that searches the code

BuiltWith is known for technology profiles of websites and lead lists built from the technologies it detects, with a long history of who used what. StackGrep searches the HTML of websites directly, so you can find sites by anything in their code, then turn them into lists and alerts.

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What StackGrep does differently

  • Search the raw page source for anything, not only technologies someone has catalogued: a script URL, a CSS class, a phrase, an ID.
  • Regex when you need a pattern, plain words when you don't.
  • Turn any search into your own technology, with a list and alerts for new sites.
  • An API and an MCP server for AI agents, on the same credits as the website, with unlimited seats.

When BuiltWith may suit you better

If you need long historical records of when sites added or dropped a technology. We haven't tested everything BuiltWith offers, so check their site for what they do today.

Questions

Is StackGrep a BuiltWith alternative?

For finding sites by their technology and building lists from them, yes. StackGrep also searches the code itself, so it can find things a technology catalogue doesn't cover.

Can StackGrep find technologies BuiltWith doesn't track?

Yes. If it shows up in a page's HTML, you can search for it and save it as your own technology.

Want the whole list?

Sign up free to download every site you find, and get a heads-up when new ones appear. 500 free credits a month, no card needed.

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