Best BuiltWith Alternatives for Identifying Website Technology
Joseph HuLast reviewed September 3, 2026
BuiltWith can tell you far more than what is running on one website. But if your usual question is simply “what technology does this page use?”, opening another tab and pasting the domain feels like an extra step. A Chrome extension can bring that part of the lookup into the page you are already viewing. It will not replace BuiltWith's historical data, lead lists, or market research. BuiltWith already offers free individual lookups, so the reason to switch for this task is convenience rather than a lower lookup price.
What can a Chrome extension replace from BuiltWith?
The replaceable part is the single-site lookup. Browser extensions can inspect the current page and identify many of the technologies they can see, including content management systems, ecommerce platforms, frameworks, analytics tools, fonts, and WordPress themes or plugins.
- Check one website without copying its domain into a separate web app.
- Identify the visible site's current technology stack while researching or prospecting.
- Keep the result close to the page so you can inspect several sites one at a time.
Choose Wappalyzer when you want the broadest established technology profile and an option to export detected results. Choose WhatRuns when WordPress plugins, themes, fonts, and notifications about technology changes are more useful to your research.
Get a broad technology profile without leaving the page
When you inspect different sites throughout the day, the useful shortcut is seeing a wide range of technologies in the current tab and moving on. This is the closest browser-based replacement for BuiltWith's basic domain lookup.
Wappalyzer
Wappalyzer is the better first choice when you want one click to reveal a broad technology profile. Its listing covers more than a thousand technologies across categories that include CMS, ecommerce, frameworks, analytics, marketing, payments, CRM, and CDN services.
- Users
- 3M
- Rating
- 4.6★
- Reviews
- 2K
Why use Wappalyzer instead of BuiltWith for this task
- For a current-site lookup, Wappalyzer works in the tab you are already viewing, so you do not have to copy the domain into BuiltWith and move between two pages.
- Its CSV export can turn a small number of page checks into a lightweight working list without taking on BuiltWith's broader report, lead, and market-research workflow.
Open the extension on a website and it reports the technologies it can detect on that page. The result stays close to the site you are researching, and the export button can save detected technologies as a CSV file.
- Detects more than a thousand technologies across dozens of categories.
- Covers business tools such as analytics, marketing, payment processors, CRM, and CDNs as well as development frameworks.
- Exports detected results to CSV from the extension.
Trade-offs
- It handles website content to perform detection.
- A page-level result cannot replace BuiltWith's historical, bulk, or market-wide datasets.
- Some server-side services leave too little evidence in the browser to be identified reliably.
What we verified
- The Chrome Web Store lists 3 million users, a 4.6 rating from about 2,000 ratings, and an update on 26 August 2026.
- Chrome marks the extension as Featured and says the publisher has a good record with no history of violations.
Cost: Free to install. Wappalyzer also sells web-based data and prospecting products separately from the browser extension.
Inspect WordPress details, themes, plugins, and fonts
A broad stack list can miss the details that matter to designers, agencies, and WordPress researchers. If you often want to know which theme, plugin, or font produces what you see on screen, a more focused detector is easier to scan.
WhatRuns
WhatRuns is more useful when the details you care about are close to what you can see on the page. Alongside frameworks and analytics tools, it focuses on WordPress plugins, themes, and fonts, and it can follow websites for detected technology changes.
- Users
- 400K
- Rating
- 4.2★
- Reviews
- 837
Why use WhatRuns instead of BuiltWith for this task
- WhatRuns keeps the lookup beside the page and gives WordPress plugins, themes, and fonts more attention than a broad technology-intelligence workflow.
- If those visible details are all you need, the free extension is lighter than opening a full research product built around historical data, lists, and integrations.
Click the extension while viewing a site to inspect its detected stack. Its categories include frameworks, analytics tools, CMS products, WordPress plugins and themes, and fonts.
- Identifies frameworks, analytics tools, CMS products, WordPress plugins, themes, and fonts.
- Works from the website you are already viewing.
- Can follow a site and notify you when detected technologies are added or removed.
Trade-offs
- It handles website content to perform detection.
- Its current-page results do not provide BuiltWith's lead lists, historical adoption data, or API.
- Technology-change notifications are based on what WhatRuns can detect, not a complete record of every infrastructure change.
What we verified
- The Chrome Web Store lists 400,000 users, a 4.2 rating from 837 ratings, and an update on 27 April 2026.
- Chrome says the publisher has a good record with no history of violations.
Cost: Free to install from the Chrome Web Store.
BuiltWith web app vs Chrome extensions
You check individual websites while browsing
Use a Chrome extension
Wappalyzer or WhatRuns can identify many current-page technologies without making you paste each domain into another tab.
Trade-off: Detection is limited to signals the extension can observe on the page and in its requests.
You need to save a small set of detected results
Start with Wappalyzer
Its Chrome extension includes CSV export, which is enough for a lightweight research list.
Trade-off: A local export is not the same as a searchable, historical market dataset.
You build lead lists or analyze technology adoption over time
Keep BuiltWith or another web data platform
This work depends on historical coverage, bulk domain data, filtering, contacts, integrations, and APIs rather than a current-page detector.
Trade-off: A browser extension cannot create that dataset from occasional page visits.
When a Chrome extension is not enough
Chrome extensions are a practical substitute for BuiltWith's current-site lookup, not for the complete BuiltWith product. They do not replace historical adoption data, internet-wide technology trends, lead lists, bulk domain research, company contacts, CRM integrations, or API access. If those outputs are the reason you use BuiltWith, switching to an extension would remove the part of the product you actually need.
Store data comes from a daily crawl of the Chrome Web Store; rating trends are computed from the public review history. Recommendations are editorial judgements, last reviewed on , with store figures from .
Sources
Product details and availability are checked against the linked official sites and Chrome Web Store listings. Sources support factual product information; the recommendation itself is an editorial judgement.
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