WP-UserAgent
WP-UserAgent is a simple plugin that allows you to display details about a computer’s operating system or web browser that your visitors comment from.
Consider an alternative
WP-UserAgent shows warning signs in 2026 — compare the alternatives below before installing. It runs on 200+ sites, is rated 5/5 and was last updated 6 years ago, and scores 38/100 on our health check.
- Small user base (200+ active installs)
- No update in 5 years
- Only tested up to WordPress 5.5 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where WP-UserAgent stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| browser | >100 |
| user agent | >100 |
| useragent | #18 |
| web | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 5 reviews
About WP-UserAgent
From the official readme · v1.1.8Description
WP-UserAgent is a simple plugin that allows you to display details about a computer’s operating system or web browser that your visitors comment from.
It uses the comment->agent property to access the User-Agent string. Through a series of regular expressions, this plugin is able to detect the operating system and browser which can be integrated in comments or placed in custom places through your template(s).
I’m adding new web browsers and operating systems frequently, as well as updating and optimizing the source code. Your feedback is very important, new features have been added by request, so if there’s something you would like to see in WP-UserAgent, leave a comment, and I’ll see what I can do.
WP-UserAgent was written with Geany – http://www.geany.org/
Images created with The Gimp – http://www.gimp.org/
Features
- Detects most web browsers and popular operative systems (if you find one missing, please let me know!)
- Shows web browser and operating system icons, names, and a link to their homepages (this will be customizable in future versions).
- Shows web browser and operating system in the Admin comments management page (unless you’re using “custom” option).
- Customizable, has its own Options Page where you can change the size of the web browser and operating system icons, where you want it to be displayed, and a few other options.
- Option to only display web browser and operating system info in Admin section
- Updated frequently to further extend web browser and operating system detection as well as source code improvements.
- Published under GPLv3
Some of you may compare this to another well-known plugin named browsersniff. WP-UserAgent is a heavily modified and improved version of UserAgent-Spy, with several improvements over browsersniff also:
- Easy standard installation, just upload to wp-plugins and activate it.
- Customizable options.
- No basic knowledge of PHP or editing WordPress templates required.
- Published under GPLv3.
Installation
- Upload the “wp-useragent” folder to /wp-contents/plugins/
- Login to your WordPress Admin menu, go to Plugins, and activate it.
-
In your WordPress Admin menu, you will find a new menu under Settings called WP-UserAgent. There you can choose the displayed icons size, and select where to display the plugin. There are three options for displaying the plugin:
- Before the comment text. User’s WebBrowser and OS will be displayed before comment text.
- After the comment text.User’s WebBrowser and OS will be displayed after comment text.
-
Custom (Advanced). You can specify the location using the wpua_custom_output() function inside the comments loop in your template (Generally in comments.php).
Example:
<?php foreach ($comments as $comment) : ?>
<?php comment_author_link() ?> <?php wpua_custom_output(); ?> says:
<?php comment_text() ?>
CAUTION: If you select “Custom” and don’t use <?php wpua_custom_output(); ?> in your template, you won’t get the information displayed.
Other options include the text to use when displaying the user’s web browser and operating system as well as whether or not to show the full User-Agent string.
Changelog
Fixed WP Hook bug introduced by upgrade to WP 5.5+
v1.1.8
- Fixed WP Hook bug introduced by upgrade to WP 5.5+
v1.1.7
- Added Microsoft Edge browser detection
v1.1.6
- Fix detection of UC Browser (props: kissshot)
v1.1.5
- Fix for comments not appearing when replying via admin comments section (props: ebteb)
v1.1.4
- Fix incorrect/missing image for Android WebView (props: kissshot)
v1.1.3
- Added MIUI Browser detection (props: Shensven)
Screenshots
For developers
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Best WP-UserAgent alternatives
All browser plugins →
FAQ
WP-UserAgent: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 28, 2026
Is WP-UserAgent free?
Yes. WP-UserAgent is free to download and use from the official WordPress.org plugin directory.
Is WP-UserAgent safe to use in 2026?
WP-UserAgent shows warning signs in 2026 — compare the alternatives below before installing. It runs on 200+ sites, is rated 5/5 and was last updated 6 years ago, and scores 38/100 on our health check.
How many websites use WP-UserAgent?
WP-UserAgent is active on 200+ WordPress websites and has been downloaded 40,658 times since it launched in June 2009. It was downloaded 141 times in the last 30 days.
Does WP-UserAgent work with WordPress 7.1?
WP-UserAgent is officially tested up to WordPress 5.5.22, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was WP-UserAgent last updated?
The latest version, 1.1.8, was released on October 16, 2020 (6 years ago).
Who makes WP-UserAgent?
WP-UserAgent is developed and maintained by kyleabaker.
What are the best alternatives to WP-UserAgent?
The most popular alternatives to WP-UserAgent are WP Console (20K+ installs), Browser Screenshots (3K+ installs) and Browser Theme Color (2K+ installs).
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