Shane

A while ago, arc90 decided that having to submit a form to find out if you’ve entered the right password was inefficient, so they set about finding a quick and secure way of telling you if the password you’ve entered is correct. They came up with <a href="http://lab.arc90.com/2009/07/hashmask.php" rel="nofollow ugc">Hashmask</a> which does that pretty well.
When you enter your password into the field, you’ll be shown a little graphic. Remember that graphic! That’s the visual representation of your password. For instance, if I enter my password I see a green shape, with two peaks at the beginning. If I type it in, and that’s not the graphic I see then I’ve typed it wrong and know to type it again (without wasting time submitting the page)!
It’s completely secure though. Even if someone sees what shape your password makes, there’s nothing that can do to convert that image back to a real word.

Hashmask for WordPress

Adding arc90's Hashmask to the login form; a secure way to quickly check you've typed the right password.

Robert Peake

Adds a Google No Captcha ReCaptcha checkbox to your WordPress and Woocommerce login, forgot password, and user registration pages. Denies access to automated scripts while making it easy on humans to log in by checking a box. As Google says, it is “Tough on bots, easy on humans.”

Login No Captcha reCAPTCHA

Great plugin but really needs wildcard support for "Whitelist IP" setting. Many ISPs change IP addresses constantly, so it's a pain to have to always go in and manually add another IP address to the list. I posted a support topic asking for wildcard support about 10 months ago, but zero replies from the plugin developer.

Wildcard support would change my rating to 5 stars easy.

Otherwise I'll eventually fork this plugin and add the wildcard myself (it's trivial to do).

Thanks to the developers for this great plugin.

Needs wildcard support

Simple recaptcha for admin login

Adds a Google No Captcha ReCaptcha checkbox to your Wordpress and Woocommerce login, forgot password, and user registration pages.

Hashmask for WordPress vs Login No Captcha reCAPTCHA