Thomas Lloancy

Simple Editor Control silently records every file change made through the WordPress built-in plugin editor and theme editor. For each save it stores the diff, the editor who made it, and the timestamp — giving you a full, browsable history.
Features
<ul>
<li>Automatic tracking — no setup required. Every save through the WP file editor is captured.</li>
<li>Git-style diff viewer with side-by-side and line-by-line modes.</li>
<li>Adjustable context lines (0, 3, 5, 10, 20).</li>
<li>Point-in-time file recovery — download any file as it existed at any past revision.</li>
<li>Works with all plugins and all active themes.</li>
<li>Accurate LCS-based diff engine (same algorithm as GNU diff / git) — handles insertions, deletions and replacements correctly.</li>
<li>Fully translatable.</li>
</ul>
Use cases
<ul>
<li>See exactly what changed when something broke.</li>
<li>Verify that no unauthorised changes were made to your plugin or theme files.</li>
<li>Recover a previous version of a file without restoring a full backup.</li>
</ul>

Simple Editor Control


Wordpress editor is very handy, and you can see the difference made when a plugin or theme was edited using that tool. It's my plugin and i like it


Go and download it

Audit trail and git-style diff viewer for every file change made through the WordPress plugin and theme file editor.

Magenta Cuda

These tools are intended to be used by WordPress developers for testing and debugging.
The backup tool lets you do a quick backup of individual MySQL tables by duplication into the same database, i.e. using “CREATE TABLE copy LIKE orig; INSERT INTO copy SELECT * FROM orig;”. 
Useful for testing when you know only some tables will be changed so you don’t have to save and restore the entire database. 
Most useful for repeated testing, i.e. backup table(s), test, restore table(s), test, restore table(s), … test, restore table(s), delete backup.
The diff tool shows the rows in the selected tables that were inserted, updated or deleted. 
For updated rows the columns that have changed values have the values highlighted – red for the original value and green for the new value. 
Although large values are truncated in table cells the full value is available by clicking on the table cell. 
Further, serialized values are prettified using JSON.stringify( value, 4 ). 
The diff tool is intended for viewing the effect on the database tables of a small number of WordPress operations, 
i.e. it is not suitable for testing a large number of WordPress operations.
Please visit <a href="https://wpdbdt.wordpress.com/" rel="nofollow ugc">https://wpdbdt.wordpress.com/</a> for a very quick introduction.
This plugin requires at least PHP 5.4.

Database Debugging Tools for Developers

This is exactly what I needed, some way to monitor database changes to see what is happening under the hood ... this plugin did exactly that, and provided an easy way to keep my database safe, and still have a full diff view of database changes!



Simple Editor Control vs Database Debugging Tools for Developers