Stefano Garuti

As you know WordPress’s Registration Form is only displayed in it’s own page, and if you want to invite a user to register, the only option you have is to provide a link to the registration page. 
With this plugin you have a new widget that insert a Registration form in your sidebar. 
The new registration form supports all the hooks that the standard Registration page does, so you can use it safely even with other plugins like Registration Plus that add fields to the form.
UPDATE and NEWS at: http://www.wpmania.it/registration-widget/

Registration Widget

This plugin provides you with a new Widget that inserts the Registration Form in your sidebar (or wherever a widget-area is defined in your theme).

Sonia Zorba

RegiFair is an event registrations manager that works in the modern Gutenberg block editor.
Key Features:
<ul>
<li>
Custom Form Builder: Build the registration form for your events with the fields that you need. Currently supported elements are standard HTML fields like text, number and email inputs, dropdowns, checkboxes, radio buttons and some special field with custom logic (see next points).
</li>
<li>
Email Notifications: Both administrators and users receive updates regarding registration confirmations, changes, and cancellations.
</li>
<li>
Available Seats Limit: Set a maximum number of available seats for each event. The event automatically stops accepting new registrations when the limit is reached.
</li>
<li>
Waiting List: When an event reaches its capacity, interested attendees can join a waiting list. The plugin automatically notifies them if a spot becomes available.
</li>
<li>
Autonomous Registration Editing: Participants can edit or delete their bookings without needing to contact the event organizer.
</li>
<li>
Group Registrations: Attendees can specify multiple people in a single registration. This feature is perfect for group events, enabling users to register friends, family, or colleagues all at once.
</li>
<li>
GDPR Friendly: The plugin can automatically remove registrations after the event has ended and provides a field for accepting the privacy policy.
</li>
<li>
Event templates: It is possible to create events from templates, to quickly create events having the same form and settings.
</li>
</ul>
RegiFair is available in the following languages:
<ul>
<li>English</li>
<li>Italian</li>
<li>German</li>
</ul>
This plugin contains minified JavaScript code. The complete source code is available on <a href="https://github.com/zonia3000/regi-fair" rel="nofollow ugc">GitHub</a>.

RegiFair

RegiFair is an event registrations manager that provides a form builder and supports waiting lists, group registrations and email notifications.

Registration Widget vs RegiFair