StackScan
BuiltWith
Wappalyzer
W3Techs
TheirStack
WhatRuns
Hunter.io
ZoomInfo
StackLedge
PeerPush
Product Hunt
SaaSHub
AI Directory Wiki
AI Toolbase
Peerhub
ai tools directory
StackScan helps businesses find and analyze websites based on the technologies they use or the keywords they target. Instead of manually researching websites one by one, users can instantly search across 100M+ domains and identify sites using platforms like Shopify, WordPress, WooCommerce, Webflow, and thousands of other technologies.
The platform provides practical filtering tools that allow users to narrow results by country, TLD, industry, or specific technology combinations. This makes it useful for building targeted lead lists, researching competitors, discovering niche markets, or identifying companies using certain software stacks for outreach and partnerships.
StackScan also supports bulk data downloads, keyword-based website discovery, and structured reporting to simplify large-scale research workflows. With continuously refreshed datasets and scalable search capabilities, it enables marketers, agencies, analysts, and growth teams to access actionable web intelligence quickly and efficiently.
StackLedge is the premier hand-curated directory designed specifically for founders, developers, and marketers who are looking to discover the tools that power modern tech stacks. In an era where most software directories rely on automated web scraping—resulting in overwhelming spam and abandoned projects—StackLedge takes a radically different approach: every single listing is reviewed by a human before it ever goes live.
We focus strictly on high-value software that does real work. Our directory is categorized into four primary pillars:
AI Tools: Discover AI products that solve actual business problems, including autonomous agents, retrieval systems, model gateways, and evaluation tools. SaaS: A curated selection of software products worth knowing about, particularly those that offer robust APIs, webhooks, and developer-friendly integrations. The n8n Ecosystem: We have a deep, specialized focus on n8n (the fair-code automation platform). StackLedge is the best place to discover custom n8n workflows, community nodes, and specialized hosting providers. Automation: Find the infrastructure that ties your stack together, from schedulers and job runners to complete workflow automation platforms. Whether you are looking to replace legacy software, discover the latest AI agent, or find the perfect community node for your automation workflow, StackLedge provides a clean, highly vetted database to accelerate your work. We also feature a community-driven upvoting system, ensuring that the best and most useful tools naturally rise to the top. Stop wasting time sifting through scraped link farms—discover your next favorite tool on StackLedge.
StackScan StackLedgeStackScan's answer
StackScan focuses on practical usability, broader stack coverage, advanced filtering, and scalable exports without unnecessary complexity. Users can quickly generate highly targeted datasets using filters like country, TLD, industry, and technology combinations, making research and lead generation faster and more precise.
StackLedge's answer:
Competitors often scrape the web to artificially inflate their directories, forcing users to sift through abandoned or low-effort tools. StackLedge guarantees that every single listing has been verified by a real person. This ensures you only discover high-value software that does real work, saving you hours of research and testing.
StackScan's answer
StackScan combines technology stack discovery and keyword-intent research in a single platform, allowing users to find websites not only by the tools they use but also by what they are targeting online. With coverage across 50,000+ technologies and 100M+ domains, it provides scalable, filterable, and export-ready web intelligence.
StackLedge's answer:
StackLedge is 100% human-curated, entirely avoiding the spam and low-quality listings found on automated aggregators. Furthermore, it features a highly specialized focus on the n8n automation ecosystem, offering dedicated sections for n8n workflows and community nodes alongside top-tier AI and SaaS tools.
StackScan's answer
StackScan is built for marketers, growth teams, agencies, sales teams, analysts, SaaS companies, and researchers who need structured web intelligence for prospecting, competitor analysis, market research, or technology adoption tracking.
StackLedge's answer:
Our primary audience consists of startup founders, software developers, system administrators, and marketers who are actively looking to discover tools to build, optimize, or automate their modern tech stacks.
StackScan's answer
StackScan was created to simplify the process of finding reliable website and technology data at scale. Existing solutions often felt limited, expensive, or difficult to use for targeted workflows, so StackScan was built as a practical and scalable platform that combines technology detection, keyword discovery, and bulk data access into one system.
StackLedge's answer:
We grew frustrated with software directories that were flooded with AI-generated spam and low-effort scraped listings. We wanted a discovery platform where the signal-to-noise ratio was high, particularly for automation builders. We built StackLedge to be the hand-curated, high-quality directory we wished existed for discovering tools for our own stacks.
StackScan's answer
StackScan is built using modern web technologies, large-scale crawling systems, distributed data processing, and technology fingerprinting engines designed to analyze and structure massive amounts of web data efficiently.
StackLedge's answer:
Php, HTML5, CSS3, JavaScript, and a custom backend database for managing curated listings and community upvotes.
StackScan's answer
StackScan is used by agencies, SaaS businesses, growth teams, researchers, and data-driven organizations for lead generation, market intelligence, and competitive analysis across multiple industries.
StackLedge's answer:
CachePlex Arvopeak
While it’s still in early stage, its lifetime deal is really a great value. Must get if you’re into lead generation.
BuiltWith - Find out the technology behind websites
PeerPush - Get Found by People and AI
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Product Hunt - A website that lets users share and discover new products
W3Techs - W3Techs provides information about the usage of various types of technologies on the web.
SaaSHub - Find and promote software that will help you grow your business or to be more productive.
