Amit Gupta

pmcdotcom

If a post is being edited by another user, you get to know about it only when you open that particular post and the chances of accidentally overwriting the other user’s changes are there.
This plugin will highlight the posts that are being edited by other user(s) right on the post listing page in wp-admin without you having to open a post to find that out, thus removing any chance of you overwriting other user’s changes.
Github: https://github.com/Penske-Media-Corp/pmc-edit-lock-marker
WordPress.org plugin repo: https://plugins.svn.wordpress.org/pmc-edit-lock-marker/

PMC Edit Lock Marker

A plugin to mark the posts on wp-admin/edit.php page which are currently being edited by other users.

wpsqr

Single Tab Post Lock is a lightweight WordPress plugin that ensures you don’t accidentally open and edit the same post in multiple browser tabs at once.
By default, WordPress prevents different users from editing the same post at the same time — but not the same user in multiple tabs. This can lead to version conflicts, lost content, or overwritten changes.
Single Tab Post Lock solves this problem with a simple and elegant in-browser locking system. When you open a post for editing, it becomes locked in that tab only. If you try to open it again in another tab, you’ll see a clear warning message and the editor will be blocked — preventing any risk of accidental overwrites.
Key Features: 
– Single-Tab Editing: Prevents the same user from editing a post in multiple browser tabs. 
– Smart Auto-Cleanup: Locks automatically clear when the editor tab is closed or reloaded. 
– Safe Timeout: Locks expire after 30 minutes in case of browser crashes or unexpected closures. 
– Lightweight & Fast: Runs purely in the browser using JavaScript — no extra server load. 
– Full Compatibility: Works seamlessly with both Gutenberg and Classic Editor.
<h3>Troubleshooting</h3>
<ol>
<li>Ensure the Single Tab Post Lock plugin is activated. </li>
<li>Verify your WordPress version is at least 5.2. </li>
<li>Clear your browser cache if the lock script does not run. </li>
<li>Contact support via <a href="https://www.wpsqr.com" rel="nofollow ugc">https://www.wpsqr.com</a> for further help.</li>
</ol>

Single Tab Post Lock

Prevent editing the same post in multiple tabs by the same user. Avoid conflicts, overwrites, and lost changes.

PMC Edit Lock Marker vs Single Tab Post Lock