LingoJon

Firefox allows a user to drag and drop an image from their desktop into the TinyMCE editor (Visual), where it is immediately converted to base64 code, which is undesirable as the image file size is much larger than the equivalent added by the standard WordPress method because…
<ul>
<li>base64 images are larger than binary images</li>
<li>WordPress would normally have ‘crunched’ the image to give various different sizes, including a thumbnail, all smaller than the original</li>
</ul>
To prevent this, “TinyMCE remove-base-64-image” contains a small piece of javascript that checks the TinyMCE editor every 1.5 seconds and immediately removes any base64 image found, also displaying an alert message:
‘Sorry, dragging images into the editor is blocked as it will cause your webpages to load slowly, please use the “Add Media” button!’.
If you manage multiple WordPress sites this plugin will save you time checking if your clients are unwittingly crippling their page downloads.
A <a href="http://www.pixeltiger.co.uk/program.html" rel="nofollow ugc">PixelTiger</a> plugin.
<h3>Developer Notes</h3>
I am aware that using setInterval to detect a freshly dropped image is not ideal from a theoretical standpoint as most of the time it’s unnecessary and it could impact TinyMCE performance, albeit by a tiny amount. If you check the TinyMCE forums you will find another suggested method: <a href="http://www.TinyMCE.com/forum/viewtopic.php?id=5090" rel="nofollow ugc">Disable drag/drop facility</a> (last post by Arvind, 2012-07-09) which involves modifying tiny_mce.js to detect the DOMNodeInserted event then deleting the new image node. While this seems sound, if you try to locate the ‘_addEvents function section’ mentioned you’ll find it’s not in tiny_mce.js version 3.5.8-wp. I also searched the TinyMCE documentation for a way to bind this event in a plugin, but no joy there either.
So if you’re a javascript genius feel free to make this plugin redundant with a DOM checking one. Until that time arrives I hope people find this useful.

TinyMCE remove-base-64-image

"TinyMCE remove-base-64-image" immediately removes images dropped into the TinyMCE editor with Firefox and alerts the user with the reason.

mranderson

Base64 Encoder/Decoder is a WordPress Plugin that enables you to encode parts of your post in base64. The encoded text looks like unreadable text, but when you press the “Decode” button it gets readable with inline replacement using AJAX, so it’s invisible to search robots.
It uses ‘[base64]’ and ‘[/base64]’ tags for opening and closing the parts of post you need to encode. The tags are browser invisible, this is, if you decide to deactivate the plugin, the content enclosed by this tags will be shown like normal text in the post.
You can add the tags typing them or using the quicktag button in HTML editing mode. For now I don’t provide a quicktag button in Visual editing mode, but I expect to add that in next version.
Previous versions of this plugin used ‘<!–base64–>’, ‘<!–/base64–>’, ‘<base64>’ and ‘</base64>’ tags. You don’t have to modify that posts, the new tag format has retro-compatibility. But if you wish you can update the database replacing the old tag format to the new tag format with just one click.
<h3>Credits</h3>
Most parts of the code are not my creation, they were borrowed from people smarter than me, so I must thank to them.
Thanks to <a href="http://www.anieto2k.com/2006/02/08/plugin-antitroll/" rel="nofollow ugc">aNieto2k’s AntiTroll Plugin</a> for part of the code, because that was my first source when I knew nothing about creating a WordPress Plugin.
Thanks to <a href="http://www.randomsnippets.com/2008/03/07/how-to-find-and-replace-text-dynamically-via-javascript/" rel="nofollow ugc">Random Snippets</a> for the Javascript replacement script. Without it the plugin will be unable to replace text inline.
Thanks to <a href="http://lorelle.wordpress.com/2005/12/01/search-and-replace-in-wordpress-mysql-database/" rel="nofollow ugc">Lorelle’s Blog</a> for the info on how to search and replace inside a WordPress database.
Thanks to <a href="http://www.mydigitallife.info/2006/06/24/retrieve-and-get-wordpress-post-id-outside-the-loop-as-php-variable/" rel="nofollow ugc">MyDigitalLife</a> for the info on how to identify the postID, helping me to solve the bug related to multiple base64 blocks showing on different posts at same time.
Thanks to <a href="http://daniel.lorch.cc/docs/ajax_simple/" rel="nofollow ugc">Daniel Lorch</a> for the info on how to use AJAX inside the plugin, it was a clarificating example.
Thanks to <a href="https://wordpress.org/extend/plugins/automatic-timezone/" rel="ugc">Automatic Timezone Plugin</a> for parts of script that adds “Settings” link to Admin Page in Installed Plugins Page.
Thanks to <a href="http://www.famfamfam.com/lab/icons/silk/" rel="nofollow ugc">Famfamfam</a> for the key icon used for the Admin page.

Base64 Encoder/Decoder

WP 5.7 not working

Enables you to encode parts of your post in base64.

TinyMCE remove-base-64-image vs Base64 Encoder/Decoder