BuiltWith is described as 'Discover the technology stack powering websites through a detailed breakdown of frameworks, services, and server information' and is a technology identifier in the development category. There are more than 25 alternatives to BuiltWith for a variety of platforms, including Web-based, SaaS, Google Chrome, Mozilla Firefox and Self-Hosted apps. The best BuiltWith alternative is Wappalyzer, which is free. Other great apps like BuiltWith are urlscan.io, WhatRuns, Similar Tech and Blacklight Privacy Inspector.
BuiltWith alternatives are mainly Technology Identifiers, but if you're looking for
Website Monitoring Tools or Web Analytics Services you can filter on that. Other popular filters include
Open Source. These are just examples - use the filter bar below to find more specific alternatives to BuiltWith.