Not sure what exatly you want to do.
If you are searching for a tool that can do insert as plain text to any application you could use Ditto. Press whatever hotkey you have configured, select the clipboard entry you want to use with the up and down cursor keys (if required, the last entry is always pre-selected) and then press SHIFT + ENTER for insert as plain text.
If you have a text that contains HTML tags such as: There is a plugin called for chrome <font color="#202124"><span style="font-family: Roboto">Copy as Plain Text.<br>Kinda does that.</span></font>
and want to get: There is a plugin called for chrome Copy as Plain Text.Kinda does that.
you could create your own tool with Xara.
Download the example file, export it to somewhere and start the exported index.htm (or just use preview). Follow the instructions
Edit: Link to Ditto at Sourceforge
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