isaacchapman

The Htaccess Secure Files plugin can only be activated on Apache web servers with mod_rewrite enabled, and will automatically raise an error upon activation if this is not the case.
The Htaccess Secure Files plugin allows for setting files to be accessible only to visitors who have a specified IP address or <a title="WordPress role or capbility" href="https://codex.wordpress.org/Roles_and_Capabilities" rel="nofollow ugc">WordPress role or capability</a>. By using <a title=".htaccess files" href="http://en.wikipedia.org/wiki/Htaccess" rel="nofollow ugc">.htaccess files</a> to secure the content instead of a separate directory outside the web root, WordPress’s native media library functionality can be used to upload secure files and link to them from within the visual editor.
By default all built-in WordPress roles will be allowed to access content that is marked as secure. The Settings -> Secure Files admin screen controls which roles, capabilities, and IP addresses are allowed to view or download secured files. If a custom role or capability is desired, there are several <a title="WordPress plugins" href="https://wordpress.org/extend/plugins/search.php?q=roles+capabilities" rel="ugc">WordPress plugins</a> capable of creating and editing roles and capabilities.
Any visitor that matches any selected role, capability, or IP address will be allowed to access secured files.
This plugin works by creating a .htaccess files in the directory of each secured file. If you manually edit the .htaccess file and it becomes corrupt (a 500 Internal Server Error is the most likely symptom), I recommend deleting the .htaccess file and then edit and save each secured item in the media library.

Htaccess Secure Files

Allows securing files in WP's media library to be only accessible to users with specific roles, capabilities, or IP addresses.

Silkalns

WP Chill

MantraBrain

Gangadhar Kashyap

Htaccess File Editor is a fast, safe and simple yet perfect to edit the WordPress site’s .htaccess file from admin panel. You can create a backup of your .htaccess file and can be restored from WordPress Dashboard. 
You can create a Backup from Htaccess –> Backup Menu and you can edit .htaccess file from Htaccess Menu. 
This plugin should be used only by experienced users!
<h3>Features</h3>
<ol>
<li>Edit .htaccess file easily</li>
<li>Create Backup of .htaccess file</li>
<li>Restore old .htaccess backup</li>
</ol>

Htaccess File Editor – Easily Edit, Backup, Restore .htaccess file


Does what it's supposed to do, no brainer!


Simple & useful

Simple editor htaccess file without using FTP client.

Htaccess Secure Files vs Htaccess File Editor – Easily Edit, Backup, Restore .htaccess file