WordPress Theme and Plugin Detectors: The 8 Best Tools

Get HubSpot's WordPress Plugin
Tristen Taylor
Tristen Taylor


Found the perfect website to use as inspiration on how to customize your WordPress site? A WordPress theme detector can help identify the theme or plugin behind any site's design.

wordpress theme detector; website builder using a wp theme detector for inspiration for her new website

Use it to gain ideas and customize your own site, but first, make sure the website was created with WordPress.

Grow Your Business With HubSpot's Tools for WordPress Websites

How to Tell if a Site was Made with WordPress

There are three primary ways to tell if a site is using the popular Content Management System (CMS):

1. Check the footer.

Sometimes, you can find this information in the footer. If you don't see any mention of WordPress there, open the source code of the page (CTRL + U) and search the text (CTRL + F) for "wp-content".

You can find instances of "wp-content" in the source code that confirms this fact.

2. Manual theme and plugin detection.

You can look at the source code of a page (remember, CTRL + U) and find out yourself.

Each WordPress theme needs two files to work: index.php and style.css. The style.css file will show you the name of the theme.

Search for "wp-content/plugins" to discover the plugins used on a WordPress site. You can do a quick Google search with the title you’ve found and find the link to it from there.

3. Using a WordPress theme detector.

A WordPress theme detector is a free extension or website where you can input any URL to identify the WordPress theme present on the page.

If you’re wondering where to find the detector tool you need, here’s a list of our favorite detectors below.

1. Built With

Price: Free for individual use, Basic Plan for $295/month, Pro Plan for $495/month, Team Plan for $995/month

Type: Website Lookup

Built With is one of the most revealing tools for discovering website information. Search for a URL, and it'll show you not only the template and plugins used by the site, but also the webserver, email services, payment providers, frameworks, JavaScript libraries, CSS media queries, and more.

best wordpress theme detectors: built with

2. Kinsta

Price: Free

Type: Website Lookup

Kinsta’s free WordPress Theme Detector allows you to quickly find key information about the theme being used on any WordPress site, including the theme name and version number, the theme URL, and the version of WordPress that’s being used to run it.


3. What WordPress Theme Is That?

Price: Free

Type: Website Lookup

What WordPress Theme Is That? is more involved than the rest of the entries on this list. Not only can you identify a specific theme but this website provides you with lists of the most popular WordPress theme and plugin providers to explore different catalogs.

This tool sends you directly to the WordPress plugin repository so you can download the plugins for your own site immediately.

best wordpress theme detectors:  what wordpress theme is that?

4. Wappalyzer

Price: Free

Type: Extension

Wappalyzer is best suited for doing some quick research on a webpage’s framework or platform, and is much more convenient than opening another window to find out.

The Wappalyzer extension needs to be installed on your browser as well. It works with both Google Chrome and Mozilla Firefox.

best wordpress theme detectors:  wappalyzer

5. WhatCMS

Price: Free

Type: Website Lookup

WhatCMS will tell you, well, what CMS a website uses.

If you want to take things a step further, you can navigate to its Tech Reports tab to learn about current high-ranking market share of top-level domain, or even language market share.

best wordpress theme detectors: whatcms

6. WordPress Theme Detector

Price: Free

Type: Website Lookup

The WordPress Theme Detector shows you the name of the site's theme along with the official page of the theme and its version, license, and authors. It also shows you which plugins the site is using.

best wordpress theme detectors: wordpress theme detector

7. W3Techs

Price: Free

Type: Website

W3Techs gives you a "Technology Score" that measures the popularity (how many sites use the same technologies) and traffic (how much traffic other sites have received with the same technologies) for all the technologies used on the site. The term "technologies" is referring to content management service, social widgets, web servers, etc.

This tool also teaches you more about the CMS market as a whole. For example, a look at the W3Techs homepage will show you that, as of November 2021, WordPress has a CMS market share of 43.1%, while Shopify is at second-place with a 4.4% share and Wix takes third with 1.9%.

Screen Shot 2021-12-16 at 4.39.32 PM

8. Scan WP

Price: Free

Type: Chrome extension

This tool needs to be installed on your browser. It's a Google Chrome extension that shows you the theme used by a particular web page.

Find the Theme You’re Looking For

With these tools, you’ll be able to enhance the appearance of your webpage after the design of your choosing. Build your professional website to wow your customers and stand out from the crowd.

Editor's note: This article was originally posted January 2020 and has been updated for comprehensiveness.

Use HubSpot tools on your WordPress website and connect the two platforms  without dealing with code. Click here to learn more.

Related Articles

Capture, organize, and engage web visitors with free forms, live chat, CRM, analytics, and more.


CMS Hub is flexible for marketers, powerful for developers, and gives customers a personalized, secure experience