sroyalty

This plugin takes a simple concept of giving you fields to enter information that use the meta tags built into 
Wordpress and expands on it. Modifying conf.txt in the plugin directory will allow you to enter custom fields to 
the Posts pages to add textfields, textarea, dropdown selections, checkboxes, and radio selections.
On top of all this simplicity, it also integrates several popular WordPress plugins. With gallery selection for 
NextGen Gallery you can select a gallery to save the id to a meta field for your post to pull in your theme. Support 
for WordTube video selection is also added. WP-Download Manager is also supported in this initial release to get ids 
for downloads as well.
Now while that may seem enough to make this a popular plugin, there is more. Meta Extensions allows you mark the 
fields to auto add tags based on field title or content (explained in the readme). It also allows you to set up 
checkboxes to add a post to/remove from a category automatically as wanted. All from the single conf.txt file included 
with the plugin.
One of the latest features is the ability to place conf.txt in your current theme’s directory. By placing conf.txt in 
the theme directories this allows you to run the plugin with multiple themes on your site and have custom conf.txt per 
theme to only show the specific fields needed in that theme. If the file is not in the theme directory, it pulls from 
the default conf.txt in the plugin’s directory.
Related Links:
<ul>
<li><a href="http://www.premiumdigitalservices.net/blog/" title="Meta Extensions Plugin for WordPress" rel="nofollow ugc">Plugin Homepage</a></li>
</ul>
<h3>Arbitrary section</h3>
<h4>CONFIGURATION</h4>
Filed/Element Types: 
 textfield – HTML Form Textfield 
 textarea – HTML Form Textarea 
 checkbox – HTML Form Checkbox 
 radio – HTML Form Radio selections 
 select – HTML Form Select box 
 gallery – HTML Form Select box to choose a NextGen Gallery 
 video – HTML Form Select box to choose a Wordtube Video 
 download – HTML Form Select box to choose a WordPress Download Manager file
To specify the custom fields, edit the file conf.txt
Each entry begins with the subject inside square brackets. The second 
line specifies its type. The third line, which only applies to type 
“radio” and “select,” enumerates the available options. Each option 
has to be separated by a hash mark (#). Each entry for standard HTML 
form entities you can also include a default which tells it which to 
mark as selected or checked. You can also include the tag option which 
will tell the plugin to add the selection as a post tag automatically. 
Tags are explained further down. Checkbox also has unique entries called 
category_id and category_name. These are filled based on existing categories 
in your WordPress site. This can be used to auto add/remove the post to the 
entered category id (and it’s matching name for error checks) when used.
Ex.
[Plan] 
type = textfield 
subtitle = Enter the generic name of your plan here.
[Favorite Post] 
type = checkbox 
category_id = 4 
category_name = Project Plans
[Miles Walked] 
type = radio 
value = 0-9#10-19#20+ 
default = 0-9
[Temper Level] 
type = select 
value = High#Medium#Low
[Hidden Thought] 
type = textarea 
rows = 4 
cols = 40
[Picture Gallery] 
type = gallery 
tag = 0
[The Video] 
type = video 
tag = 0
[Attachment] 
type = download 
tag = 0
Tags can be very useful. Below is how each special type generates the 
tag for it.
Tag Design: 
 textfield – Title of the entry when filled 
 textarea – Title of the entry when filled 
 checkbox – Title of the entry when checked 
 radio – The name of the selection 
 select – The name of the selection 
 gallery – Not handled 
 video – Not handled
<h4>Useage</h4>
Once you build your conf.txt file, you are ready to start making posts 
using the custom fields. In order to call these fields you can either 
use the built in get methods for post meta, or you can use the ones that 
I have added to the metaext class to keep your code clean and know what 
is what. Below is the current list of functions you can use in your theme 
to call the meta information easily.
Meta Extensions Class: 
 metaext::get_single_metaext($meta_name, $limit) 
 Description: Creates a post object containing all the Posts with the meta_name passed being set in them. 
 $meta_name: the name in brackets for the field you want to pull the list of posts using this field. 
 $limit: how many of these posts to pull. Defaults to 5 if nothing is passed. 
 metaext::get_multi_metaext($meta_names, $limit) 
 Description: Creates a post object containing all the Posts the all the meta_names passed (meta_names is an array). 
 $meta_names: the names in brackets in an array for the fields you want to pull the list of posts using this field. 
 $limit: how many of these posts to pull. Defaults to 5 if nothing is passed. 
 metaext:: get_value_metaext($the_ID, $name) 
 Description: Gets the value for the passed name from the post id passed. 
 $the_ID: the post ID you are wanting to pull the custom field’s value from. 
 $name: The field name of the entry you want to pull the value for. The name is what is in [] and is case sensitive.
Meta Extensions WordPress Download Manager Class: 
 metaext_wpdm::get_metaext_downloadlink($id) 
 Description: Returns the download link for WPDM ID passed. 
 $id: The download ID (can use metaext::get_value_metaext() to get the ID) you want the link for. 
 metaext_wpdm::show_metaext_downloadlink($id) 
 Description: Echos the download link for WPDM ID passed. 
 $id: The download ID (can use metaext::get_value_metaext() to get the ID) you want the link for.
Meta Extensions NextGen Gallery Class: 
 metaext_ngg::get_metaext_firstpic($galleryid) 
 Description: Pulls the first image’s src link for the gallery id passed to it. 
 $galleryid: The gallery ID that you want to pull the first pic’s image url for. 
 metaext_ngg::show_metaext_firstpic($galleryid, $class = ”) 
 Description: Echos the first image’s src link for the gallery id passed to it using the optional class name passed. 
 $galleryid: The gallery ID that you want to pull the first pic’s image url for. 
 $class: The name of the class you want to use, optional. 
 metaext_ngg::show_metaext_gallery($galleryid) 
 Description: Echos the Gallery ID passed, the same as using the NGG show gallery shortcode. 
 $galleryid: The gallery ID that you want to show the gallery for.
Meta Extensions WordTube Class: 
 metaext_wt::get_metaext_wtvideo($videoid) 
 Description: Returns the Video code to show on a page for the video id passed. 
 $videoid: The video id to get the code for. 
 metaext_wt::show_metaext_wtvideo($videoid) 
 Description: Echos the Video code to show on a page for the video id passed. 
 $videoid: The video id to get the code for.
<h4>Code Examples</h4>
<pre><code><div id="meta-ext-test">
 <?php if ( metaext::get_value_metaext(get_the_ID(), 'the_gallery') ) : ?>
 <h2>Test for Galleries using Meta Extensions with NextGen Gallery</h2>
 <?php metaext_ngg::show_metaext_gallery(metaext::get_value_metaext(get_the_ID(), 'the_gallery')) ?>
 <?php endif; ?>
 
 <?php if ( metaext::get_value_metaext(get_the_ID(), 'the_video') ) : ?>
 <h2>Test for Videos using Meta Extensions with WordTube</h2>
 <?php metaext_wt::show_metaext_wtvideo(metaext::get_value_metaext(get_the_ID(), 'the_video')) ?>
 <?php endif; ?>
 
 <?php if ( metaext::get_value_metaext(get_the_ID(), 'the_download') ) : ?>
 <h2>Test for Downloads using Meta Extensions with WP Download Manager</h2>
 <?php metaext_wpdm::show_metaext_downloadlink(metaext::get_value_metaext(get_the_ID(), 'the_download')) ?>
 <?php endif; ?>
</div>
</code></pre>

Meta Extension

Allows adding custom form fields to posts, storing them in custom meta fields. Integrates NGG, WT, and WP-DM.

shayancode

Codeideal Open Fields lets you add custom fields to posts, pages, custom post types, taxonomies, and users. The admin interface is built with React and TypeScript — fast, responsive, and intuitive.
All features are free. No premium tier. No locked functionality.
<h4>Quick Start</h4>
<pre><code>get_field( 'my_field' ) — retrieve any field value.

the_field( 'my_field' ) — echo a field value directly.
</code></pre>
<h4>Template Examples</h4>
Simple field:
<pre><code><?php echo esc_html( get_field( 'subtitle' ) ); ?>
</code></pre>
Repeater loop:
<pre><code><?php while ( have_rows( 'team_members' ) ) : the_row(); ?>
 <h3><?php the_sub_field( 'name' ); ?></h3>
 <?php the_sub_field( 'role' ); ?>
<?php endwhile; ?>
</code></pre>
User field (with prefix):
<pre><code><?php echo esc_html( get_field( 'company', 'user_' . $user_id ) ); ?>
</code></pre>
Full API reference and guides: <a href="https://openfields.codeideal.com/docs" rel="nofollow ugc">openfields.codeideal.com/docs</a>
<h4>ACF-Compatible API</h4>
If you know ACF, you already know Open Fields. The template API uses the same function names:
<ul>
<li><code>get_field()</code> / <code>the_field()</code></li>
<li><code>get_fields()</code> / <code>update_field()</code> / <code>delete_field()</code></li>
<li><code>have_rows()</code> / <code>the_row()</code> / <code>get_sub_field()</code> / <code>the_sub_field()</code></li>
<li><code>get_row()</code> / <code>get_rows()</code> / <code>reset_rows()</code> / <code>get_row_index()</code></li>
<li><code>get_field_object()</code> / <code>get_sub_field_object()</code></li>
</ul>
When ACF is also active, these wrappers are not loaded — no conflicts. Both plugins store data as standard WordPress meta, so they can coexist.
Every function also has a prefixed version (e.g. <code>cofld_get_field()</code>) that is always available regardless of other plugins.
<h4>Field Types</h4>
<ul>
<li>Basic: Text, Textarea, Number, Email, URL, Password</li>
<li>Choice: Select, Checkbox, Radio, Switch</li>
<li>Date & Time: Date, Time, DateTime, Color Picker</li>
<li>Media: Image, File, Gallery</li>
<li>Content: WYSIWYG Editor, Link</li>
<li>Relational: Post Object, Taxonomy, User</li>
<li>Layout: Repeater, Group</li>
</ul>
<h4>Location Rules</h4>
Assign field groups to:
<ul>
<li>Post types (including custom post types)</li>
<li>Page templates</li>
<li>Post status / format / category</li>
<li>Taxonomy terms</li>
<li>User roles</li>
</ul>
<h4>Source Code</h4>
The admin JS and CSS are compiled from TypeScript/React source. All other files are uncompressed.
<ul>
<li>Source repo: <a href="https://github.com/novincode/openfields" rel="nofollow ugc">github.com/novincode/openfields</a></li>
<li>Admin source: <a href="https://github.com/novincode/openfields/tree/main/admin/src" rel="nofollow ugc">admin/src/</a></li>
<li>Build: <code>pnpm install && pnpm build</code> (Vite + TypeScript)</li>
</ul>

Codeideal Open Fields

A free, modern custom fields plugin for WordPress. Build field groups with a visual editor — no code required.

Meta Extension vs Codeideal Open Fields