With the TS login plugin, your users can log in or/and register from the front page (not needed to go to wp-admin anymore).

This plugin allows you to implement Google reCAPTCHA (CAPTCHA) into your web forms.

reCAPTCHA in WP comments form is an ANTISPAM tool that adds a Google reCAPTCHA to the comments form and protects your site from the spam robots threats.