Wolly aka Paolo Valenti

This plugin allow you to show where you want, inside the loop, a gravatar of the author of the post, the description of the author of the post, the nick of the author of the post and the date of the post.PAY ATTENTION if you are upgrading, please take note that CSS is changed, you find a CSS example in sample.css, copy it in yours style.css and apply the change you need
<h3>Arbitrary section</h3>
<h3>A brief Markdown Example</h3>

addauthor

This plugin allow you to show where you want avatar and bio of the post author.PAY ATTENTION if you are upgrading, CSS is changed

Molongui

Properly credit authors & contributors—quickly, easily, and hassle-free. 
The all-in-one authorship plugin for WordPress: show bios, add co-authors, credit guests, and boost SEO.
Tired of jumping through hoops to properly attribute authors? Molongui Authorship makes it effortless to showcase contributors—whether they’re registered users, guests, or co-authors.
✅ Author Box – Beautiful, customizable bios with social links 
✅ Guest Authors – Credit guest writers without creating user accounts 
✅ Co-Authors – Add multiple authors to a single post with seamless byline integration
🚀 Switching from another plugin? Import data in 1 click from Co-Authors Plus, PublishPress Authors, and One User Avatar.
✔️ Add author boxes with bios and social links 
✔️ Credit guest authors without user accounts 
✔️ Add co-authors to any post or page 
✔️ Boost author credibility and SEO 
✔️ Seamless 1-click migration from other plugins
<h4>Key Features</h4>
🛠 Author Box – Your Authors, Elevated 
Transform how authors are presented with the most customizable, engagement-boosting author box for WordPress.
<blockquote>
✨ Pixel-Perfect Customization
<ul>
<li>Multiple pre-designed templates</li>
<li>Different layouts (boxed, minimalist, tabbed, inline)</li>
<li>Live preview editor with real-time styling</li>
<li>Mobile-optimized responsive design</li>
<li>Custom CSS panel for unlimited tweaks</li>
</ul>
✨ Author Profiles That Engage
<ul>
<li>90+ social icons (including emerging platforms)</li>
<li>“Related Posts” section to boost engagement</li>
<li>Guest and co-author compatibility</li>
</ul>
✨ Context-Smart Display
<ul>
<li>Automatic placement before/after content</li>
<li>Customizable headings (“About the Author”, “Meet the Expert”, etc.)</li>
<li>Schema markup for Google rich snippets and improved Google E-E-A-T</li>
<li>AMP/RTL support for broader compatibility</li>
</ul>
⚡ Premium Advantages
<ul>
<li>Additional premium layouts</li>
<li>Dynamic bios with rich text, media, HTML tags, and third party shortcodes support</li>
<li>30+ extra niche social icons</li>
<li>Advanced conditional logic (user roles, tags, etc.)</li>
<li>Custom post type support</li>
<li>Shortcode to display the author box wherever</li>
</ul>
</blockquote>
👥 Guest Authors – Credit Contributors Without the Clutter 
Give proper attribution without creating unnecessary user accounts—ideal for one-time contributors, interviewees, or guest bloggers.
<blockquote>
✨ Native WordPress Integration
<ul>
<li>Add guest authors as easily as regular users—no technical hassle</li>
<li>Dropdown selection in the post editor—just pick a name and go</li>
<li>Full profiles with bios, avatars, and social links (no Gravatar required)</li>
<li>Custom fields for job titles, affiliations, or custom links</li>
</ul>
✨ Seamless Frontend Display
<ul>
<li>Auto-display in post bylines with linked names</li>
<li>Author box compatibility—show guest bios alongside regular authors</li>
<li>SEO-optimized: Updates <code>author</code> meta tags for accurate attribution</li>
</ul>
⚡ Premium Advantages
<ul>
<li>Guest author archive pages (boost credibility with dedicated profiles)</li>
<li>1-click user-to-guest conversion: Clean up unused accounts while preserving authorship</li>
<li>Bulk edit & clone: Save time reusing guest profiles</li>
<li>REST API support: Integrate guest data with third-party tools</li>
<li>Import/Export tool for easy migrations</li>
</ul>
</blockquote>
👨‍👩‍👧‍👦 Co-Authors – Flawless Multi-Author Attribution 
Credit every contributor fairly—whether it’s joint articles, team projects, or collaborative content.
<blockquote>
✨ Effortless Collaboration
<ul>
<li>Add unlimited co-authors via simple dropdown in the post editor</li>
<li>Works seamlessly with both regular users and guest authors</li>
<li>Drag-and-drop author ordering (control name display sequence)</li>
<li>No taxonomy conflicts—cleaner than legacy plugins</li>
</ul>
✨ Automatic Frontend Display
<ul>
<li>Smart bylines auto-update with all author names (e.g., “By John, Lisa & Max”)</li>
<li>Each name links to author pages (guest authors included)</li>
<li>Schema.org markup for proper multi-author SEO</li>
</ul>
⚡ Premium Advantages
<ul>
<li>Byline modifiers (add prefixes like “By” or suffixes like “et al.”)</li>
<li>REST API support for headless WordPress setups</li>
<li>Shortcodes to display co-author lists anywhere</li>
</ul>
</blockquote>
🚀 1-Click Migration Tool – Switch Without Losing Data 
Switching from Co-Authors Plus, PublishPress Authors, or One User Avatar? Import your existing author data with 1 click! No manual work needed.
🔍 Additional Premium Features 
Only available in <a href="https://www.molongui.com/wordpress-plugin-post-authors" title="Click to explore all features" rel="nofollow ugc">Molongui Authorship Pro</a>.
<blockquote>
<ul>
<li>Author list. 4 different layouts, user role filter and <a href="https://www.molongui.com/wordpress-plugin-post-authors/author-list/" title="Learn more" rel="nofollow ugc">more</a></li>
<li>List of posts by author. 5 different layouts, pagination and <a href="https://www.molongui.com/help/molongui_author_posts/" title="Learn more" rel="nofollow ugc">more</a></li>
<li>Allow visitors to search content by author name. Learn <a href="https://www.molongui.com/wordpress-plugin-post-authors/search-by-author-name/" title="Learn more" rel="nofollow ugc">more</a></li>
<li>Disable author pages for registered WordPress users</li>
<li>Add a post byline anywhere via shortcode. Useful if your theme does not show a byline for your posts</li>
<li>Retrieve author information via shortcode. Very useful to use with page builders. Learn more <a href="https://www.molongui.com/help/molongui-authorship-available-shortcodes/" title="Click to see available shortcodes" rel="nofollow ugc">here</a></li>
</ul>
</blockquote>
💡 Ready to enhance your authorship experience? 
Compare <a href="https://www.molongui.com/#free-vs-pro" title="Features comparison" rel="nofollow ugc">Free vs Pro</a> | <a href="https://demos.molongui.com/test-drive-molongui-authorship-pro/" title="Click to try the Molongui Authorship Pro" rel="nofollow ugc">Try Pro</a> | <a href="https://www.molongui.com/help/support/" title="Click to open a support ticket with us" rel="nofollow ugc">Get Support</a> | <a href="https://www.tidiochat.com/chat/foioudbu7xqepgvwseufnvhcz6wkp7am" title="Click to live chat with us" rel="nofollow ugc">Live Chat</a>
This plugin uses a third-party service to enable live chat communication with our support team, exclusively for administrators in the backend. You can disable this service via the plugin settings page. For more information about the live chat <a href="https://www.tidio.com/" rel="nofollow ugc">service provider</a> review their <a href="https://www.tidio.com/privacy-policy/" rel="nofollow ugc">privacy policy</a> and <a href="https://www.tidio.com/terms/" rel="nofollow ugc">terms</a>.

Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress


We used both free and pro versions.



The plugin has major performance issues for sites with large userbase.



It will likely work fast when you have up to 10 users registered on your site but once you have 200k users list it will bring issues.



Post admin becomes slow, page admin becomes slow. Front pages also add slow quires that kill your site performance when loading that pages.



We submitted ticket to support forum. Developer offered some solutions that finally didn't work.



We though it could be resolved via public updates but pity, never happened almost after a year wait. We would use it if developer had the ability to optimize queries properly and not going through all user list when making queries on each page and in pages admin.



Thank you!



UPD: changed on July 2024 to 4 stars since plugin author managed to fix performance problem reported. 


performance problems unresolved after 8 mo

All-in-One Authorship Solution: Seamless Author Box, Guest Authors, and Co-Authors to enhance your site's authority, credibility, engagement, and SEO.

addauthor vs Molongui Authorship – Author Boxes, Guest Authors & Co-Authors for WordPress