mylo2h2s

DP ALTerminator adds missing or empty ALT tags to your content images.
Thanks to various shortcodes such as <code>%%DP_TITLE%%</code> or <code>%%DP_DATE%%</code> it’s pattern can be easily customized (you can mix plain text elements with shortcodes to create complex patterns)
DP ALTerminator works when ALT tags are missing or when they are empty. Sometimes WordPress itself, visual editors, and so on, leave an ugly <code>alt=""</code> which is useless and not always recognized by other famous ALT tag managers.
DP ALTerminator works only with content images ($content variable), because I didn’t want to alter “extra” images, like widgets, logos, menu icons and so on (most of the times, you want to manually edit their ALT or leave it empty)

DP ALTerminator – Missing ALT manager

Adds ALT tags to your content images when they're missing or empty. It's pattern can be customized with simple shortcodes.

Jordy Meow

Rename the alternative text of your media easily directly using the Media Library, without a click.
BETA. This plugin was just created. I am waiting for the first feedbacks of my users to decide which way to go. The first thing I will implement is to update the ALT in the POSTS.
BE KIND. Again, this plugin is new. Please help us 🙂
More information available on http://apps.meow.fr/media-alt-renamer/.
<h4>Quickstart</h4>
<ol>
<li>Check the Media Library, in list view (not grid view).</li>
<li>Modify the Alt Text field, and simply type ENTER when it’s done.</li>
</ol>

Media Alt Renamer

Rename the alternative text of your media easily directly using the Media Library, without a click.

DP ALTerminator – Missing ALT manager vs Media Alt Renamer