Karan Makani

Admin Robots.txt Editor automatically creates a default <code>robots.txt</code> file (if missing) and provides a user-friendly interface to edit it from the WordPress dashboard.
<h3>Features:</h3>
<ul>
<li>Automatically generates <code>robots.txt</code> with default SEO-friendly rules</li>
<li>Simple admin panel to view and edit contents</li>
<li>Option to reset to default content</li>
<li>Fully editable using a WordPress textarea field</li>
<li>No need for FTP or file access</li>
<li>Uses the official <code>robots_txt</code> hook (recommended by WordPress.org)</li>
</ul>

Admin Robots.txt Editor

Easily create, edit, and manage your site's robots.txt file directly from the WordPress admin panel.

Eugen Bobrowski

Plugin provide to help search engines to indexing site correctly.
A simple plugin to manage your robots.txt. Plugin donn’t create the file or edit it. This plugin edit WordPress output of robots.txt content. And get you a easy and usable interface to manage it.
Features
<ul>
<li>Drag-n-drop robots.txt paths</li>
<li>Changing <code>blog_public</code> option form plugin settings page</li>
<li>Site map field for robots.txt</li>
<li>Robots.txt physical file checking.</li>
</ul>

Robots.txt rewrite

first review

Provide the easy managment of your robots.txt from admin side. It propose you the advanced then standard robots.txt content too.

Admin Robots.txt Editor vs Robots.txt rewrite