Pichel

Displays IP address, operating system, browser type and origin of the visitor by shortcode or as Widget in Sidebar.
Usage
<ol>
<li>
Place the widget to your Sidebar.
</li>
<li>
You can use the shortcode [about-visitor] to include informations in your posts or pages. 
optional Parameters: 
ip=0 to hide IpAddress 
os=0 to hide Operating System 
browser=0 to hide the Browser 
location=1 to show the location/origin 
Examples: 
List of default informations: [about-visitor] 
List of default informations including location: [about-visitor location=1] 
List only the IP Adress: [about-visitor os=0 browser=0]
</li>
<li>
Without sidebar you can display informations by including in php-code by using then function ‘js_aboutvisitor_display’. 
parameter array: 
ip=>0 to hide IpAddress 
os=>0 to hide Operating System 
browser=>0 to hide the Browser 
location=>1 to show the location/origin 
Examples: 
List of default informations: 
List of default informations including location: 1)); } ?> 
List only the IP Adress: 0;browser=>0)); } ?>
</li>
</ol>

WP Js About Visitor

Displays IP address, operating system, browser type and origin of the visitor by shortcode or as Widget in Sidebar.

myproxy

Show the visitor’s information in a widget, including the IP address, country, country flag, city, region, language, operating system, and browser.
You can choose the information to be shown. It’s shown in the visitor’s language automatically.
<h4>How to use it?</h4>
<ol>
<li>Go to the admin menu Appearance > Widgets. </li>
<li>Then drag the IP address widget to your Sidebar. </li>
</ol>
Here is a live demo: <a href="https://free-proxy-list.net/blog/" rel="nofollow ugc">https://free-proxy-list.net/blog/</a>
<h4>3rd Party API</h4>
<ul>
<li>The plugin is relying on our <a href="https://www.find-ip.net/ip-script" rel="nofollow ugc">IP Widget API</a> service</li>
<li>It gets the visitor’s information by that API</li>
<li>IP Widget API service <a href="https://www.find-ip.net/privacy" rel="nofollow ugc">Privacy Policies</a></li>
<li>IP Widget API service <a href="https://www.find-ip.net/tos" rel="nofollow ugc">Terms of Use</a></li>
</ul>

IP Address Widget II

Show the visitor's information in a widget, including the IP address, country, flag, city, region, language, operating system, and browser.

WP Js About Visitor vs IP Address Widget II