Description
The Signup Code restricts new user registrations on WordPress by requiring a valid invitation code in the default registration form, blocking spontaneous sign-ups and automated bot attempts. Designed for those who run closed communities, private member areas or multisite networks with invitation-based access, the plugin generates, distributes, and validates individual or bulk codes directly from the admin panel, with validity and usage limits.
Key Features of The Signup Code
- Bulk code generation
Creates multiple codes at once in the panel, ready for distribution. - Field in the default form
Adds the code input directly to WordPress’s native registration screen. - Usage limit per code
Sets how many times each code can be redeemed before it expires. - Configurable validity
Sets an expiration date for each individually issued code. - Centralized management
Lists, edits, and revokes active codes on a single dedicated admin screen.
Benefits of The Signup Code
- Control over who enters the site
Only people with a valid code can complete registration on the platform. - Blocking automated registration
Significantly reduces the volume of fake accounts created by scripts and bots. - Structured invitation-based access
Allows distributing invites for campaigns, events, or closed groups without exposing open registration. - Curating the registered audience
Keeps the user base aligned with the desired community or network profile.
Who is The Signup Code Recommended For?
- Those who run closed communities and want to limit registration only to invited people.
- Designed for those who maintain private membership areas, restricted courses, or beta groups.
- Those who manage multisite networks and need to control the creation of new accounts via invitation.
- Those who want to eliminate automated registrations and spam of fake users.
How to Download The Signup Code
The Signup Code is available for download here on Ultrapack. After downloading the .zip file, install it in Plugins > Add New > Upload Plugin, select the file and activate. Once activated, the code generation and management options will appear in the WordPress admin menu.
Designed for sites that need an extra layer between visitors and effective registration, The Signup Code turns open registration into an invitation flow without requiring theme customization or custom development. Integration with the native registration form keeps the user experience familiar and eliminates manual moderation routines for new accounts.
Frequently asked questions
Is WPMUDEV Signup Code GPL-licensed?
Yes. WPMUDEV Signup Code is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.
Can I use WPMUDEV Signup Code on multiple sites?
Yes. You can install WPMUDEV Signup Code on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.
How much does WPMUDEV Signup Code cost at Ultrapack?
WPMUDEV Signup Code costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).
Does WPMUDEV Signup Code include updates?
Yes. The current version of WPMUDEV Signup Code is 1.0.3.3, published at Ultrapack on Sep 27, 2016. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is WPMUDEV Signup Code scanned before publication?
Yes. Every version of WPMUDEV Signup Code goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What changed in this version
Version 1.0.3.3 12/16/2013
- WordPress 3.8 compatibility
Version 1.0.3.2 10/15/2013
- Fix possible slashing issue
Version 1.0.3.1 Mar 8, 2013
- Fix capability for network pages
Version 1.0.3 Jul 8, 2011
- Fixed: `get_error_message on a non-object
Version 1.0.2 Apr 1, 2011
- 3.1+ compatibility update
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
signup-code.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
signup-code.zipand click Install Now. - Click Activate.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready