Mainwp | Regression Testing Extension
The MainWP Regression Testing Extension is a powerful tool designed for WordPress site managers who want…
- Instant download
- Unlimited domains
- Virus-scanned files
Version history
5 releases available — use the latest unless you need an earlier build.
- v5.2.1 Current 25 Jul 2026
- v5.2 1 Jun 2026
- v5.1.4 24 Jan 2026
- v5.1.3 22 Jan 2026
- v5.1.2 4 Dec 2025
Earlier builds are available to customers who own this product — sign in to download them.
What you’re getting
The MainWP Regression Testing Extension is a powerful tool designed for WordPress site managers who want to ensure their websites remain functional after updates and changes. This extension allows you to automate the testing process, saving you time and reducing the risk of errors. With its user-friendly interface, you can easily set up and run tests on multiple sites simultaneously. Plus, it provides detailed reports, so you can quickly identify any issues that arise. What makes it stand out is its ability to integrate seamlessly with your existing MainWP dashboard, enhancing your workflow without any hassle.
Key Features
- Automated testing for multiple WordPress sites at once.
- User-friendly setup with no coding required.
- Comprehensive reporting to easily identify issues.
- Seamless integration with the MainWP dashboard.
- Customizable test scenarios to fit your specific needs.
- Save time and reduce manual testing efforts.
- Regular updates to ensure compatibility with the latest WordPress versions.
- Support for various testing protocols and browsers.
How to download Mainwp for free
Buy this plugin on its own for $3.49, or take a membership from $14 and download it along with every other product on the site.
Either way you get the same file: the original .zip as the developer published it, with nothing removed and nothing added. Every upload is virus-scanned before it reaches your account, and earlier builds stay available if you ever need to match an existing site.
Updates come from us rather than from the developer — we publish each new release, usually within days. Our free Auto Updater plugin delivers them inside your WordPress dashboard, and the setup guide walks through connecting a site.
What works without a Mainwp licence key
Everything. The GPL licence is already active in the code you receive, so every feature is present and working the moment you activate the plugin — nothing is stripped out, nothing is disabled, and your visitors see no difference from a site running the developer’s own copy.
The one thing a developer’s key normally carries is automatic updates from their servers. That is the gap we fill: our free Auto Updater plugin delivers each new release into your WordPress dashboard, so updates arrive the same way they would with the original licence. The setup guide takes about two minutes.
The one exception anywhere in the catalogue is a feature that runs on the developer’s own servers rather than on your site — a hosted template library, for instance. Those are theirs to serve, not ours to redistribute, and where one applies we say so on this page rather than letting you find out afterwards.
Is the Mainwp free download legal?
Yes. This plugin is licensed under the GNU General Public Licence — the same licence WordPress itself uses. The GPL expressly permits redistribution of the code, including redistribution for a fee, and the Free Software Foundation states plainly that the licence sets no limit on what may be charged.
What we distribute is the original file, unmodified. The developer’s licence verification code is left exactly where they put it; we simply do not supply a key, because a key is not ours to give.
What is not legal, and what we do not do, is distributing nulled software — files with the licence check stripped out. That is modification of the code, and modified code is how WordPress sites get backdoored. We explain both at length: is GPL legal? and GPL versus nulled.
Up and running in minutes
Download the .zip, then in WordPress go to Plugins → Add New → Upload Plugin, choose the file and click Install Now, then Activate. If the download contains extras such as documentation, unzip it first and install only the plugin file.
Full guide: how to install a theme or plugin from a GPL site.
Questions, answered
Can I get Mainwp for free?
You can download it here for $3.49, or with a membership that includes every product on the site. It is not free of charge, but it is free of a recurring per-site licence — the GPL allows redistribution, so you pay once rather than every year for every domain.
Is the Mainwp free download legal?
Yes. It is licensed under the GNU General Public License, the same licence WordPress itself uses, and the GPL expressly permits redistribution including for a fee. You receive the original unmodified file. What is not legal, and what we do not do, is distributing nulled software with the licence check stripped out of the code.
Does Mainwp need a licence key?
No key is required to install and use the plugin, and your visitors see no difference. What a developer licence adds is their own support channel, updates direct from their servers, and in some products a connection to their template or content library. Updates come from us instead.
Will I get Mainwp updates?
Yes. When the developer releases a new version we publish it here, usually within days. Install it over the previous one, or use our free Auto Updater plugin to receive updates inside your WordPress dashboard. Earlier builds stay available in your account if you ever need to roll back.
How many websites can I use Mainwp on?
Open a support ticket from your account and we’ll help you out. If you find a broken file, and we’ll fix it quickly.
Is this the original Mainwp file?
Yes. Downloaded from the developer and redistributed unmodified, with nothing added and nothing removed. Every file is virus-scanned before release. If you find a problem, use Report a problem on this page and we will fix it.
Or get all 16,000+ products
$14/month — every plugin, theme and template on the site, this one included. Cancel anytime.
