modemlooper

Allows users to log into your site with a WordPress.com user account. Adds a WordPress.com connect button to your login form.

WPConnect

Allows users to log into your site with a WordPress.com user account. Adds a WordPress.com connect button to your login form.

wptobe

The easiest, fastest and most reliable membership plugin
The wptobe-signinup plugin provides functions for member registration, login and member management required on the website, 
It focus on ease of use and fast speed and stability. It offers a Captcha function to protect against spam by default and easily change the design of any theme by selecting a pre-made template without any programming.
Member Registration, Login, Reset Password, Profile, Change Password. 
우커머스 쇼핑몰 체크아웃 국내 주소(Daum 우편번호 서비스) 사용 기능.
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The capcha can be used for sign-in/sign-up screen to prevent spam users.
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Each field can be edited and the position can be easily changed by drag-and-drop. The setting screen and the short code output are the same, so it is very intuitive and easy.
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It provides on/off switch to show or hide each field.
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It is possible to log in by email without username.
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You can set the page to be redirected after sign-in/sign-up.
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No need to put the short code directly in a page, just select it from the selection box.
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You can create different styles and change them whenever you want. For example, create a themeA, themeB C style whenever the theme changes, simply change it in the selection box to change the design. We provides Default/Black/Avada/Enfold design by default.
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It allows users to receive via email if they forget their password. The administrator can modify the content of the email to be sent.
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Members can change their current password to a new password on the profile page.
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It provides an html/css file that outputs sign-in/sign-up/profile independently, so you can easily change and copy it.
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You can reset the plug-in to the initial state at any time.
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<h4>User Guide</h4>
You can find user guide, installation and more detailed information about Wptobe-signinup on wptobe.com. 
* <a href="http://www.wptobe.com/wptobe-signinup" rel="nofollow ugc">User Guide</a>

Wptobe-signinup

Wptobe Signinup is a very light plugin that lets you easily and safely build sign in/up with designed page.

WPConnect vs Wptobe-signinup