Login One! Business - J3

Authentication plug-in. For personal and business use.

Joomla! 3.0 nativeJoomla! plug-in


UpdateLogin One! Business Edition for Joomla! 3
For personal and business use. Support provided.
Current version 3.8.1. Compatible with Joomla! 3.8.4 up to 3.10.11 incl. Compatible with PHP 5.3.10+ and PHP 7, PHP 8 and with MySQL 8.
Updates through the Joomla! update system.
Purchase includes one (1) year free updates.

For more information see here.
Demo: see here or our Youtube Channel.

An authentication plug-in that prevents multiple log-ins by the same user credentials, for both frontend and backend. A useful tool for websites that share or exchange potentially sensitive information amongst their registered users.
User needs to either sign off the first session, or wait until the first session has expired.
Super Users can always have multiple log-ins.

The business edition comes with many additional options:

  • Instead of denying access, user accounts can be disabled (blocked);
  • Specific user groups and user IDs can be allowed or denied multiple log-ins;
  • ID/IP combinations can be allowed/denied multiple log-ins;
  • The maximum number of simultaneuous log-ins for 'allowed users' can be configured;
  • How to handle an attempted multiple login can be configured: display a warning message, redirect to an article, or redirect to a web page.
  • and much more...

The Business Edition is a 'must' for professional websites, because it delivers so much flexibility.
If you do not need all the features of the Business Edition, you could consider the Premium Edition.

Install or upgrade via Joomla! backend.

System requirements:

  • Joomla! 3.x only. Joomla! 3.8.4 or later (Please note that the package will not install on an earlier Joomla! version). Please contact us if your Joomla! is before 3.8.4.
  • PHP 5.3.10 or higher or PHP 7, PHP 8;
  • If you use this plug-in in combination with the EUL - Easy User Login plug-in (by Viktor Vogel), you must have Joomla! 3.9.0 or later.
  • Standard Joomla! log-in form enabled and in use as the log-in gate;
  • Browser has cookies enabled.

Basic setup instructions are here. These are also in the documentation that comes with the download package.
Please note that the plug-in must now be installed as a package. The package will install three separate plug-ins.
Configuration overview: see here.

Supported languages: Front-end: configurable. Back-end: English.

Authentication and user plug-ins can be critical. The use of additional 3rd party (i.e. additional to a standard Joomla! install) authentication and user plug-ins, templates or other extensions may turn the Login One! software partly or totally ineffective, meaning that it will not - or only partly - perform the tasks for which it has been designed. 3rd Party templates may not display the plug-in notifications properly. In order to avoid disappointment, we recommend that you always test the Freeware Edition before purchasing a commercial edition.

License: License terms are here.
Support: Extended support. Support terms are here. You may find the answer to your question on our forum.

Trouble Shooting guide: see here.
Refund and discount policy
: see here.

You may want to try the free standard edition first. The standard edition is very basic and not configurable.


Thu, 21-Jun-2018 @18:47
My company provides statistical services that include sophisticated and ground breaking proprietary stock market analysis tools that help investors to look ahead and take the right decisions. Our customers are both professional and private investors. We noticed that a substantial number of users (not the professionals) were using shared passwords, possibly to reduce subscription cost. We regarded this as an insult, because our tools really deliver a lot of value. When we installed this plug-in, the issue disappeared completely and also, the number of subscriptions increased dramatically during a short period; we can only guess why... Of course we use the Business Ed and we never want to do without it anymore...
Robert K
Wed, 16-Nov-2016 @17:59
I have been looking for an extension that prevents double logins by the same user and this is the only decent one that I could find. I first bought the Premium edition but very soon I wanted the Business edition because it has all the options that I need. They refunded my Premium order and now I am using the Business version. It is doing a super job. Thank you.
A very small minus is that the configuration is not always easy to understand, but in the end the documentation tells you how. I am very happy with this excellent plugin!
Andy Andes
Fri, 7-Oct-2016 @18:58
This plugin is a real gem. I totally recommend. If you really want to prevent sharing of login credentials between users, then go for this plugin and for its Business Edition and nothing less. It's fully worthwhile the investment. It has so many options and the support is great.
Rocco Xavier
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