quan_flo

This plugins allows administrators to rename wordpress usernames. 
The account owner is gets a notification email about the rename process.
Install, activate, and then go to the Users->Rename Usernames menu to rename user accounts.
More about me and my plugins
Since the year 1999 I do administration, customizing and programming for several forums, communities and social networks. In the year 2013 I switched from another PHP framework to WordPress. 
Because not all plugins I’d like to have exist already I wrote some own plugins and I think I’ll continue to do so.
If you have the scope at forums or social networks my other modules might also be interesting for you. <a href="https://wordpress.org/plugins/search.php?q=quan_flo" title="ifs-net / quan_flo WordPress Plugins" rel="ugc">Just take a look at my WordPress Profile to see all my Plugins.</a> Use them and if my work helps you to save time, earn money or just makes you happy feel free to donate – Thanks. The donation link can be found at the right sidebar next to this text.

Rename Users

This plugins allows administrators to rename wordpress usernames.

Jeff Sherk

This plugin will automatically rename any media files you upload to the Media Library, by adding a prefix to the beginning of the filename based on the filetype.
For example, you can tell it to add the prefix “pic-” to the beginning of all .jpg files that you upload. So uploading an image called car.jpg would get renamed to pic-car.jpg
And since it changes the name of the file, it will also change the “slug” that wordpress uses based on this new name.
You can set an individual/unique prefix for each of the following filetypes: 
jpg jpeg png bmp gif tif mp4 avi m4v mov flv mkv 3gp pdf doc docx xls xlsx ppt pptx mp3 ogg wav zip csv txt rtf odt
You will need to go to the settings page and set the prefix you want to use for each of the filetypes.
The default behavior is that it will NOT rename any uploaded files until you have set the prefix on the settings page.

Auto Rename Media On Upload

I created this plugin because I needed this feature! Hope you love it too!

Great plugin!

Automatically renames any media files you upload by adding a prefix to the beginning of the filename based on the filetype.

Rename Users vs Auto Rename Media On Upload