Wappalyzer
Wappalyzer is a technographic data tool that shows which technologies a website uses and builds lead lists of companies by the software they run, for sales, marketing and GTM teams that sell into a specific stack.
Updated October 2026
Overview: What is Wappalyzer?
The browser extension is free, a free account includes 50 lookups a month, and paid plans start at $250 a month on Pro (checked October 2026).
The Chrome extension has about 3 million users and detects more than a thousand technologies, from CMS and ecommerce platforms to analytics, payments and CRM tools. Paid plans add lead lists with company and contact data, bulk lookups, email verification, APIs and CRM enrichment. It's built by Wappalyzer Pty Ltd in Australia, and its detection rules have been closed source since August 2023.
Fit: Ideal customer profile.
Sales and marketing teams whose ICP is defined by technology, such as selling to Shopify stores or to companies on a competitor's product, who want lists and alerts rather than one-off checks. Teams that only need to peek at one site's stack can use the free extension, and teams that need years of adoption history may prefer BuiltWith.
- Technographic list building
- Account research before a call
- Competitor install alerts
Capabilities
Key features.
01
Free browser extension that detects technologies on any page you visit
02
Lead lists filtered by technology, keyword, traffic, country and language
03
Company and contact data with email verification
04
Bulk technology lookups for domain lists
05
Website alerts for new installs and platform migrations
06
APIs for lookups and enrichment, about 1 credit per website
07
CRM enrichment on Business and Enterprise
Usage
How to use Wappalyzer.
Install the extension for free spot checks, then create a free account to run lookups and download sample lead lists. On a paid plan, build a list by technology and filters, export it to your sequencer or CRM, and set alerts on competitor, prospect or customer sites. Developers call the APIs to enrich domains inside their own workflows.
Cost
Pricing.
$250/ month
Monthly prices in US dollars (checked October 2026); annual billing saves 17%. API credits included in a plan expire after 60 days, and credits bought in bundles after 365 days. You can pause a plan for up to three months or cancel any time.
Free
$0.00
- 50 lookups and email verifications a month
- 5 website alerts
- Free sample lead lists
Pro
$250.00
- 1 user
- 5,000 lookups a month
- 5,000 email verifications
- Lead lists on a capped number of technologies
Business
$450.00
- 5 users
- 20,000 lookups and API credits
- Lead lists on any technology mix
- CRM enrichment
Enterprise
$850.00
- 25+ users
- 200,000+ lookups and credits
- Dedicated support and custom terms
At a glance
Quick facts.
- Stack position
- Enrichment
- Category
- Data Sources
- Best for
- Technographic list building, Account research before a call, Competitor install alerts
- Pricing
- From $250/month
Subcategories
- Technology Lookup
Questions
Frequently asked.
Is Wappalyzer free?
The browser extension is free and works without an account. A free account adds 50 lookups and email verifications a month, 5 website alerts and sample lead lists. Lead lists, APIs and CRM integrations need a paid plan.
How much does Wappalyzer cost?
Pro is $250 a month, Business $450 and Enterprise from $850, with 17% off on annual billing.
Is Wappalyzer open source?
Not anymore. Its technology rules were open source until August 2023, when the public repository was taken down. Community forks continue from the last open release.
What are Wappalyzer's limits?
Plan API credits expire after 60 days, so seasonal users can lose them, and Pro caps how many technologies you can build lists on. Like any detector, it reports what it recognizes, so a missing result doesn't prove a site doesn't use a tool.
What are the alternatives to Wappalyzer?
BuiltWith adds long technology history from a server-side crawl, WhatRuns is a free extension, WhatCMS focuses on CMS detection, and PublicWWW searches page source code for any snippet.
Compare
Wappalyzer alternatives.
Talk to us: Pick the tool. We run the system around it.
Wappalyzer is one part of a stack. We build and run the revenue system it plugs into.
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