Yes, Flex Fields is free to use. It is available as a free plugin on WordPress.org.

How many websites use Flex Fields?

Flex Fields has 10 active installations as tracked by WordPress.org.

What are the best Flex Fields alternatives?

Popular alternatives to Flex Fields include Advanced Custom Fields (ACF®), Meta for WooCommerce, Meta pixel for WordPress. You can compare them side-by-side on our comparison pages.

Does Flex Fields work with the latest WordPress?

Flex Fields has been tested up to WordPress 6.8.5. It requires WordPress 6.6+ and PHP 7.0+.

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Flex Fields

Name: Flex Fields
Author: Flex Plugins

Flex Fields is a WordPress plugin to add custom meta boxes for post types, pages, taxonomies, and more, using the flex_field() function.

By Flex Plugins·Meta·Free

·10 active installs·Updated 2 weeks ago

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As of April 2026, Flex Fields is a WordPress meta plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.2K+ times in total. Requires WordPress 6.6+ and PHP 7.0+. Available on WordPress.org since 2024. Actively maintained — updated within the last month. Top alternative: Advanced Custom Fields (ACF®).

0/5Rating

10active installs

1.2K+total downloads

2 yearssince 2024

Overview

Flex Fields is a WordPress plugin that allows users to easily add custom meta boxes for post types, page templates, taxonomies, post statuses, and post taxonomies. These custom meta boxes can be utilized in code using the flex_field() function with the key parameter.

Read full description on WordPress.org