metaboxes topic

Redux is a simple, truly extensible options framework for WordPress themes and plugins!

reduxframework

CMB2 is a developer's toolkit for building metaboxes, custom fields, and forms for WordPress that will blow your mind.

CMB2

A Simple and Lightweight WordPress Option Framework for Themes and Plugins

Codestar

~ Lightweight, Flexible & Rapid WP Development Framework ~

wponion

WP Custom Fields is an options, metabox and customizer framework for WordPress aimed at speeding-up plug-in and theme development.

makeitworkpress

Simple, Lightweight & Flexible WordPress Settings Framework

wpsf

Create custom fields with simple and easy to use WordPress meta box framework.

mustafakucuk

A Composer package that provides metabox orchestration for WordPress.

inpsyde

A PHP class that facilitates the creation of custom WordPress metaboxes

MatthewKosloski