Phoenix Online

This easy-to-use plugin allows you to quickly and easily edit post meta values for almost any post type (including custom post types)
Edit post meta as plain text, in textareas, as light-weight HTML or using the full WordPress WYSIWYG editor!
From the first version, this has been designed for ease of use by site Contributors and Editors, but keeps settings reserved for Admin’s only. This gives site Adaministrators control over what less-privileged users can bulk edit.

Bulk Postmeta Editor

This plugin makes it easy to check and edit serialized data in a targeted and comfortable way. Both custom fields and hidden meta data can be easily queried by post type. The plugin then lists all data in an editable input field of your choice which makes comparing and editing the data a breeze.  


Very helpful for debugging

Allows you to bulk-edit post meta information (including custom post types) from a single place.

Eric Marden

adsdevshop

Easily export the metadata stored by one plugin or theme to another plugin or theme.
Data Portability is important. Data Portability allows you to easily move from one system to another and take your content with you. Metathesis allows you to do just that.
This plugin provides an easily extensible system for registering import and export sources. Out of the box it exports the Search Engine Optimized Title, Description, and Keywords data stored by the Thesis Theme a CSV file. It also ships with a second and third adapter to export the Thesis SEO data to the All in One SEO Pack plugin and vice versa.
More adapters are planned, and new ones can be written very easily by extending the Metathesis class and registering your adaptor via a WordPress filter provided by Metathesis. (Documentation forthcoming).
<h3>License</h3>
The Metathesis plugin was developed by Eric Marden on behalf of Robert Dempsey and Atlantic Dominion Solutions, LLC and is provided with out warranty under the GPLv2 License.
Copyright 2010 Robert Dempsey
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Metathesis

Migrate your SEO goodness and other meta-data from one theme or plugin to another WordPress theme or plugin.

Bulk Postmeta Editor vs Metathesis