
BuiltWith
Wappalyzer
W3Techs
TheirStack
WhatRuns
Hunter.io
ZoomInfo
Discover the tech behind the web. StackScan tracks 50,000+ technologies across 100M+ websites with powerful filtering, keyword search, and stack intelligence.

AlternativeTo
Product Hunt
SaaSHub
Alternative.me
LibHunt
SourceForge
Open HUB
Discover Open Source Alternatives to Popular Software
Which is more popular?
Based on our record, OpenAlternative seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | stackscan.com | openalternative.co |
| Pricing | ||
| Company | Startup from Canada · 10 - 19 employees · 2026 | 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


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,...
OpenAlternative is a community driven list of open source alternatives to proprietary software and applications. The goal of the site is to be your first stop when researching for a new open source service to help you grow your business. It will help you find alternatives and reviews of the...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of OpenAlternative yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing StackScan and OpenAlternative.
StackScan'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.
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.
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.
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.
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.
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.
Share your experience with using StackScan and OpenAlternative. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


While it’s still in early stage, its lifetime deal is really a great value. Must get if you’re into lead generation.
We have no reviews of OpenAlternative yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Tracking StackScan since May 2026.
i've found this site easier to use and have better results than alternativeto. https://openalternative.co/. - Source: Hacker News / 23 days ago
I dunno why someone would link to the repo, it's not a project one builds to host locally Also, for comparison: https://openalternative.co/?q=splunk https://alternativeto.net/software/splunk/?license=opensource. - Source: Hacker News / over 1 year ago
There are a few: - https://openalternative.co/ - https://www.opensourcealternative.to/ - https://opensourcealternatives.org/ - https://www.btw.so/open-source-alternatives By just aggregating everything FOSS, doesn't mean its useful. Its... - Source: Hacker News / over 2 years ago
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Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
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A website that lets users share and discover new products
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W3Techs provides information about the usage of various types of technologies on the web.
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Find and promote software that will help you grow your business or to be more productive.
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