Masarki Kondo

Asumaru

This plugin backs up before deleting posts.
When you click “Delete Permanently” WordPress will create an XML file to save to your server computer.
The XML file is stored in “wp-content/deleted_posts” on your wordpress. 
 The XML file is stored in the site-id if your wordpress is multi sites.
The XML file is stored with a format same as Export on WordPress. 
 If you want to restore the post, you can use Import on WordPress.
Supporting post-types are “post”, “page” and “custom post”. 
 But “attachment” is unsupported.
— Attention —
We warn users of version 0.1.x. 
 Version 0.1.x has an error at the time of the installation. 
 After having deleted version 0.1 or 0.1.1, please install you again.
<h3>Arbitrary section</h3>
— Attention —
We warn users of version 0.1.x. 
 Version 0.1.x has an error at the time of the installation. 
 After having deleted version 0.1 or 0.1.1, please install you again.

Before deleting the posts

This plugin backs up before deleting posts.

Sam Margulies

Ever have one erroneously entered custom field name confuse all of your users and you just can’t figure out how to get rid of it? Delete Custom Fields will let you delete every instance of a custom field from your site. Once your remove a custom field using this plugin it will not appear in your list of custom fields when you edit a post or page.

Delete Custom Fields

Doesn't show all custom fields, though (even if you choose Show Hidden) - would be nice to have them as a list instead of a dropdown, but otherwise it does what it promises.

Works

Remove every instance of a custom field from your site.

Before deleting the posts vs Delete Custom Fields