Plugin: Tags field for front-end Entry Form I would like to add tags via a front-end entry form - not like here, but as follows:


Text field in a front-end entry form where user add tags (separated by commas).
After pressing the save button, the plugin should:
check for every tag, whether it exists already (and create the tag if not)
save the tags together with the rest of the entry form [see also here](including the text field with the user defined tags)


Now, I am looking for a developer (I am willing to pay for it).
While the full answer to this probably requires some planning, and a plugin that handles various aspects of the tag management, here are a few components to consider:

You can submit tags from the front-end and, on the server side, they will behave like Craft handles them in the Control Panel. The syntax for your front-end form field is as follows:

&lt;select multiple name="fields[fieldHandle][]"&gt;
  &lt;option value="13"&gt;Tag Name One&lt;/option&gt;
  &lt;option value="42"&gt;Tag Name Two&lt;/option&gt;
  &lt;option value="144"&gt;Tag Name Three&lt;/option&gt;
&lt;/select&gt;


For a more friendly UI, there are a handful of javascript libraries that could help on the front-end. I believe the one that Craft uses in the Control Panel is selectize.js and it could be setup to be used on the front-end as well.

To handle the pre-processing of tag behavior before an Entry is saved, your plugin may need to use the entries.onBeforeSaveEntry Event.