dimapopov

Light Poll – WP plugin for vote. With the plugin, you can quickly create a survey, customize its design and display it on the page as a widget or shortcode. 
The plugin provides several types of charts.
Video demonstration
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/RKLds0KcEBU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Installation
Install WordPress. Install “Light Poll” plugin and activate it. After that, a button will appear on the WordPress panel to enter the plugin menu. Open the plugin menu and create a poll (survey). 
Customize its appearance and survey responses. Display the survey on the page as a widget or using a shortcode [lightpoll id=”poll_id”].
Also watch the video tutorial:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/zrTbim_4OtQ?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&start=417&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>

Light Poll

Light Poll - WP plugin for vote. With the plugin, you can quickly create a survey, customize its design and display it on the page as a widget or shor …

toddhalfpenny

Use <a href="http://plantuml.com/" rel="nofollow ugc">PlantUML</a> syntax in shortcodes to have diagrams rendered automatically.
Wrap your PlantUML syntax in our shortcode tags like this, and the PlantUML SaaS will be used to render a lovely diagram.
<pre><code>[plantuml]
Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

Alice -> Bob: Another authentication Request
Alice <-- Bob: another authentication Response
[/plantuml]
</code></pre>
Easily add all sorts of UML diagrams (Sequence, State, Activity, etc) to your site using the powerful PlantUML syntax.

PlantUML Renderer

Really useful

Great stuff. solved a big problem for me

Insert PlantUML diagrams from their great syntax.

Light Poll vs PlantUML Renderer