Easy Responsive Test
Preview your WordPress site at custom viewport sizes without resizing your browser window.
Solid choice
Easy Responsive Test is a solid plugin choice in 2026, with a few things worth checking first. It runs on 10+ sites, is rated 5/5 and was last updated 4 weeks ago, and scores 68/100 on our health check.
- Actively developed — last update 4 weeks ago
- Small user base (10+ active installs)
- Very few reviews so far
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 Easy Responsive Test stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| mobile | >100 |
| responsive | >100 |
| screen size | >100 |
| testing | >100 |
| viewport | #83 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 3 reviews
About Easy Responsive Test
From the official readme · v3.0.0Description
Easy Responsive Test (ERT) is an essential tool for WordPress administrators and developers who need to verify how a site looks at different screen dimensions. After activation, the plugin creates a dedicated preview page that loads your site inside a resizable iframe with a toolbar for switching between preset and custom viewport sizes.
You do not need to resize your browser window every time you test responsiveness. Install ERT, configure your sizes, and preview your site from the admin settings screen.
Features
- Test your site at multiple screen sizes from a single preview page
- Six common viewport sizes included out of the box (320×480 through 1280×1024)
- Add unlimited custom height:width pairs from the settings page
- Customize toolbar background and foreground colors with the WordPress color picker
- One-click “Check Your Site” link from the ERTP Settings admin page
- Demo page is created automatically on activation and hidden from the Pages list
- Settings link on the Plugins screen for quick access
- Admin bar is hidden on the preview page for an accurate front-end view
- Settings and preview restricted to users with the
manage_optionscapability
How it works
- Activate the plugin. A private preview page titled “ERTP Site Check” is created automatically.
- Open ERTP Settings in the WordPress admin menu to configure viewport sizes and toolbar colors.
- Click Check Your Site to open the preview page in a new tab.
- Use the toolbar to switch between configured viewport sizes while your live site loads inside the iframe.
Default viewport sizes
- 320 x 480
- 480 x 600
- 540 x 960
- 600 x 960
- 1024 x 600
- 1280 x 1024
Sizes are entered as height:width pairs, comma-separated (for example: 320:480, 768:1024).
Other plugins from oscitas
For Bootstrap shortcodes, check out Easy Bootstrap Shortcodes.
Looking for a parallax slider? Try Easy WordPress Parallax Slider.
Installation
Automatic installation
- In your WordPress admin, go to Plugins > Add New.
- Search for “Easy Responsive Test”.
- Click Install Now, then Activate.
Manual installation
- Download and unzip
easy-responsive-test.zip. - Upload the
easy-responsive-testfolder to/wp-content/plugins/. - In the WordPress admin, go to Plugins and activate Easy Responsive Test.
After activation
- Open ERTP Settings from the left-hand admin menu (smartphone icon).
- Adjust viewport sizes and toolbar colors as needed, then click Update Settings.
- Click Check Your Site to open the responsive preview in a new browser tab.
Frequently asked questions
Who can access the preview page?
Only users with the manage_options capability (typically Administrators) can view the preview page and change plugin settings.
Where is the preview page?
On activation, the plugin creates a page titled “ERTP Site Check” with the slug erp_check_site. The page is hidden from the standard Pages list in the admin to avoid accidental edits. Use the Check Your Site link on the settings page to open it.
What happens when I deactivate the plugin?
Deactivation removes plugin options and deletes the automatically created preview page. Reactivating the plugin creates a fresh preview page.
How do I add custom screen sizes?
In ERTP Settings, enter sizes in the Window Sizes field as height:width pairs separated by commas. For example: 375:667, 414:896, 768:1024.
Changelog
Major security and compatibility update for WordPress 6.5+ and PHP 8.x. All administrators should upgrade.
3.0.0
- Add CSRF nonce and capability checks to the settings form.
- Restrict the demo preview page to users with
manage_options. - Compatibility: WordPress 6.5+ and 7.0; PHP 7.4+ and 8.x.
2.0
- You can set custom height and width for each viewport size.
- You can show or hide the toolbar.
1.0
- Initial release.
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Easy Responsive Test alternatives
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FAQ
Easy Responsive Test: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 14, 2026
Is Easy Responsive Test free?
Yes. Easy Responsive Test is free to download and use from the official WordPress.org plugin directory.
Is Easy Responsive Test safe to use in 2026?
Easy Responsive Test is a solid plugin choice in 2026, with a few things worth checking first. It runs on 10+ sites, is rated 5/5 and was last updated 4 weeks ago, and scores 68/100 on our health check.
How many websites use Easy Responsive Test?
Easy Responsive Test is active on 10+ WordPress websites and has been downloaded 5,994 times since it launched in November 2013. It was downloaded 88 times in the last 30 days.
Does Easy Responsive Test work with WordPress 7.1?
Easy Responsive Test is officially tested up to WordPress 7.0.7, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does Easy Responsive Test need?
Easy Responsive Test requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Easy Responsive Test last updated?
The latest version, 3.0.0, was released on September 17, 2026 (4 weeks ago).
Who makes Easy Responsive Test?
Easy Responsive Test is developed and maintained by osCitas Themes.
What are the best alternatives to Easy Responsive Test?
The most popular alternatives to Easy Responsive Test are AMP (300K+ installs), AMP for WP (70K+ installs) and WP Mobile Menu (70K+ installs).
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