Yoast

Enrico Battocchi

This plugin allows users to clone posts of any type, or copy them to new drafts for further editing.
How it works:
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In ‘Edit Posts’/’Edit Pages’, you can click on ‘Clone’ link below the post/page title: this will immediately create a copy and return to the list.
</li>
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In ‘Edit Posts’/’Edit Pages’, you can select one or more items, then choose ‘Clone’ in the ‘Bulk Actions’ dropdown to copy them all at once.
</li>
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In ‘Edit Posts’/’Edit Pages’, you can click on ‘New Draft’ link below the post/page title.
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On the post edit screen, you can click on ‘Copy to a new draft’ above “Cancel”/”Move to trash” or in the admin bar.
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While viewing a post as a logged in user, you can click on ‘Copy to a new draft’ in the admin bar.
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3, 4 and 5 will lead to the edit page for the new draft: change what you want, click on ‘Publish’ and you’re done.
There is also a template tag, so you can put it in your templates and clone your posts/pages from the front-end. Clicking on the link will lead you to the edit page for the new draft, just like the admin bar link.
Duplicate Post has many useful settings to customize its behavior and restrict its use to certain roles or post types. Check out the extensive documentation on <a href="https://yoast.com/wordpress/plugins/duplicate-post/" rel="nofollow ugc">yoast.com</a> and our <a href="https://developer.yoast.com/duplicate-post/overview/" rel="nofollow ugc">developer docs</a>.
<h3>Contribute</h3>
If you find this useful and if you want to contribute, there are two ways:
<ol>
<li>Submit your bug reports, suggestions and requests for features on <a href="https://github.com/Yoast/duplicate-post" rel="nofollow ugc">GitHub</a>;</li>
<li>If you want to translate it to your language (there are just a few lines of text), you can use the <a href="https://translate.wordpress.org/projects/wp-plugins/duplicate-post" rel="nofollow ugc">translation project</a>;</li>
</ol>

Yoast Duplicate Post

This plugin is a very useful addition to the limited standard WordPress options. I often use the clone feature to create new posts/pages from existing ones. The options page allows setting the standard name for the copy as well as the attributes that should be transferred. 

Very useful addition


My plugin offers portfolio pages in addition to posts and pages. This plugin does not offer duplication option from portfolio pages. Although it appears to work for posts and pages.


Does not work for portfolio pages

The go-to tool for cloning posts and pages, including the powerful Rewrite & Republish feature.

Binsaifullah

Duplicate PP is a simple and light-weight plugin which allows you to duplicate any Post,Page and Any Custom Post Type Easily. The duplicated Post or Page or CPT acts as draft. You can either duplicate the post, page or any custom post type using dashboard at the backend or from the single post view at the frontend.
<h3>Features Include:</h3>
<ul>
<li>Duplicate the POST</li>
<li>Duplicate the PAGE</li>
<li>Duplicate Any Custom POST TYPE</li>
<li>Duplicate from Backend</li>
<li>Duplicate from Frontend (Single Post View)</li>
</ul>

Duplicate Post, Page and Any Custom Post

Duplicate PP is a simple plugin which allows you to duplicate any POST,PAGE and Custom POST TYPE Easily.

Yoast Duplicate Post vs Duplicate Post, Page and Any Custom Post