Name: Advanced Database Cleaner – Optimize & Clean database to Speed Up Site Performance
Rating: 4.9 (1807 reviews)

Description

Advanced Database Cleaner is a complete WordPress optimization plugin that helps you clean up database clutter and optimize database performance by removing unused data such as old revisions, auto drafts, spam comments, expired transients, unused post meta, duplicated post meta, unused user meta, etc.

It is designed to help you improve website speed by reducing database bloat and ensuring a lean, efficient WordPress installation. It also provides detailed previews, powerful filters, and automation tools to safely control what gets cleaned.

With the ✨Premium version✨, you can unlock even more advanced features, such as detecting and cleaning orphaned options, orphaned tables, orphaned post meta, orphaned user meta, orphaned transients, and orphaned cron jobs. It also gives you clear insights into how your database evolves over time through built-in analytics, lets you monitor plugin and theme activity to better understand when new data is created or when leftovers appear, and much more.

Why use Advanced Database Cleaner❓

👉 Get a clear overview: see how many tables, options, transients, cron jobs, metadata… records you have, and identify which are unused or orphaned.

👉 Save time: configure what to clean, how far back to keep data, and how often to run automations. The plugin will then handle recurring cleanups for you.

👉 Save space and improve performance: removing unnecessary data reduces database size, makes backups faster, and can improve query performance, especially on busy or older sites.

✅ Main Features

Delete old revisions of posts and pages
Delete old auto-drafts
Delete trashed posts
Delete pending comments
Delete spam comments
Delete trashed comments
Delete pingbacks
Delete trackbacks
Delete unused post meta
Delete unused comment meta
Delete unused user meta
Delete unused term meta
Delete unused relationships
Delete expired transients
Delete duplicated post meta
Delete duplicated user meta
Delete duplicated comment meta
Delete duplicated term meta
Delete oEmbed caches
Display the database size that will be freed before cleaning for each item type, and the total size to be freed
Display and preview items to clean before performing a database cleanup to ensure safety
Sorting capability in cleanup preview tables (by name, date, size, site id, etc.)
View options value content in original or formatted mode for serialized or JSON structures (and other items types as well).
Keep last X days of data: clean only data older than the number of days you specify

✅ Automation

Schedule database cleanup to run automatically
Create scheduled cleanup tasks and specify which items each task should clean
Schedule database optimization and/or repair to run automatically
Execute scheduled tasks based on several frequencies: once, hourly, twice a day, daily, weekly, or monthly
Specify the “keep last X days” rule for each item type in a scheduled task
Pause/Resume scheduled tasks whenever needed
Create as many scheduled cleanup tasks as needed and specify what each task should clean

✅ Tables

Display the list of database tables with information such as number of rows, table size, engine, etc.
Sort tables by any column such as table name or table size
Detect and filter tables with invalid prefixes (tables that do not belong to the current WordPress installation), this can be enabled or disabled from the settings page
Optimize database tables (the plugin notifies you when tables require optimization)
Repair corrupted or damaged database tables (the plugin notifies you when tables are corrupted)
Empty rows of database tables
Clean and delete database tables

✅ Options

Display the options list with information such as option name, option value, option size, and autoload status
Sort options by any column such as option name or option size
View option value content in original or formatted mode for serialized or JSON structures.
Notify you if autoloaded options are large and help reduce autoload size for better performance
Detect large options that may slow down your website
Set option autoload to yes/no
Clean and delete options

✅ Cron Jobs

Display the list of active cron jobs (scheduled tasks) with information such as arguments, action, next run, schedule, etc.
Sort cron jobs by any column such as action name or next run time
Detect cron jobs with no valid actions
Clean and delete scheduled tasks

✅ Post Meta

Display the post meta list with information such as meta key, value, size, associated post ID, etc.
Sort post meta by any column such as meta key, meta size, or post ID
View post meta value content in original or formatted mode for serialized or JSON structures.
Detect unused post meta (meta not associated with any existing posts)
Detect duplicated post meta (same meta key/value for the same post ID)
Clean and delete post meta

✅ User Meta

Display the user meta list with information such as meta key, value, size, associated user ID, etc.
Sort user meta by any column such as meta key, meta size, or user ID
View user meta value content in original or formatted mode for serialized or JSON structures.
Detect unused user meta (meta not associated with any existing users)
Detect duplicated user meta (same meta key/value for the same user ID)
Clean and delete user meta

✅ Transients

Display the list of transients with information such as name, value, size, and expiration time
Sort transients by any column such as transient name, size, or expiration time
View transient value content in original or formatted mode for serialized or JSON structures.
Clean expired transients
Detect large transients that may slow down your website
Clean and delete transients
Set transient autoload to yes/no

✅ Other Tools

Display current database size
Logging system for easy troubleshooting
Access the WordPress debug log directly from the plugin interface
Multisite support (network-wide database cleanup and optimization from the main site)
Modern, responsive interface powered by React for a smooth experience without page reloads
Show/hide plugin tabs for better usability

⚡ Premium Features ⚡ Official website

Unlock the full power of database cleanup and optimization with Advanced Database Cleaner Premium – packed with smart features that take accuracy, speed, and cleanup control to the next level.

✅ Remote SmartScan

Local scan + Remote SmartScan technology to accurately detect the true owners of tables, options, post meta, user meta, transients, and cron jobs
Cloud-enhanced ownership detection using a large and continuously improving remote database
Improved accuracy for identifying orphaned items left by deleted plugins and themes
Ability to edit ownership of any item and correct misidentified owners
Ability to send ownership corrections to improve the global detection database
Enhanced “Belongs to” ownership column everywhere using cloud data + local data
Display multiple possible owners for each item when applicable
Display owner status (active, inactive, not installed) to simplify cleanup decisions
Check your remote scan credits to monitor usage

✅ Action Scheduler Cleanup

Clean Action Scheduler Completed actions
Clean Action Scheduler Failed actions
Clean Action Scheduler Canceled actions
Clean Action Scheduler Completed logs
Clean Action Scheduler Failed logs
Clean Action Scheduler Canceled logs
Clean Action Scheduler Orphan logs

✅ General Cleanup Enhancements

Keep last X items feature in General Cleanup
Keep last X items per parent (e.g., per post)
Keep last X items globally (e.g., keep the last 10 pingbacks)
Combine Keep Last X Days with Keep Last X Items for advanced cleanup safety

✅ Advanced Filters

Advanced filters in all modules (Tables, Options, Post Meta, User Meta, Transients, Cron Jobs)
Filter by size, value content, autoload, expiration, metadata type, and more
Filter by plugin owner, theme owner, WordPress core, orphan, or unknown
Filter by multisite site ID with full per-site visibility
Filter by action frequency and interval in cron jobs
Filter by duplicated, unused, large, not-yet-scanned, or expired items

✅ Advanced Automation

Unlimited automation tasks (Free version is limited to 5 tasks)
Create any number of scheduled cleanup tasks with different configurations
Create scheduled optimization and repair tasks
Use Keep Last X Items and Keep Last X Days inside scheduled tasks
Run automation tasks hourly, twice daily, daily, weekly, monthly, or at any supported frequency
Pause/resume/delete automation tasks without losing settings
Per-task automation event logging showing executed actions, number of items cleaned, execution timestamps, and detailed logs

✅ Database Analytics

Daily tracking of total database size and number of tables
Daily and monthly charts showing database growth trends
Raw data tab with all recorded measurements
Table-level analytics showing size growth, rows growth, and daily changes
Ability to detect abnormal table growth caused by logs, caches, or runaway actions
Multi-table selection and search for analyzing multiple tables at once

✅ Addons Activity

Automatically track plugin activations, deactivations, and uninstalls
Automatically track theme switches and uninstalls
Display activity in a color-coded timeline for better readability
All timestamps shown in your local timezone
Multisite support (activity recorded on the main site)

✅ Full Multisite Support

Clean any site or all sites
Filter items by site ID in every module (Tables, Options, Post Meta, User Meta, Transients, Cron Jobs)
Display which site each item belongs to
Run automation tasks across the entire network

Screenshots

General Cleanup overview (list of database items to clean, total count & size)
Preview items before cleaning – Revisions example (filters in Premium)
Keep Last rules – Revisions example (keep last X items in Premium)
Tables overview (filters & scan in Premium)
Options overview (filters & scan in Premium)
Post Meta overview (filters & scan in Premium)
User Meta overview (filters & scan in Premium)
Transients overview (filters & scan in Premium)
Cron Jobs overview (filters & scan in Premium)
Start Scan modal – Full scan selected (in Premium)
Scan running for Options – Exact Match step (in Premium)
More info about an Option ownership (in Premium)
Edit an Option ownership (in Premium)
Automation cleanup tasks overview
Create an Automation Revisions cleanup task (keep last 2 revisions per post)
Revisions cleanup Automation task events log (in Premium)
Database analytics – Last 30 days daily charts (in Premium)
Tables analytics – Last 30 days, actionscheduler_logs & wp_options selected (in Premium)
Addons Activity – Timeline of activation, deactivation & uninstall (in Premium)
Info & Logs – System Info tab selected
Settings page

Installation

This section describes how to install the plugin. In general, there are 3 ways to install this plugin like any other WordPress plugin.

1. Via WordPress dashboard

Click on “Add New” in the Plugins dashboard.
Search for “advanced-database-cleaner”.
Click the “Install Now” button.
Activate the plugin from the same page or from the Plugins dashboard.

2. Via uploading the plugin to WordPress dashboard

Download the plugin to your computer from: https://wordpress.org/plugins/advanced-database-cleaner/
Click on “Add New” in the Plugins dashboard.
Click on the “Upload Plugin” button.
Select the zip file of the plugin that you downloaded.
Click “Install Now”.
Activate the plugin from the Plugins dashboard.

3. Via FTP

Download the plugin to your computer from: https://wordpress.org/plugins/advanced-database-cleaner/
Unzip the zip file, which will extract the “advanced-database-cleaner” directory.
Upload the “advanced-database-cleaner” directory (included inside the extracted folder) to the /wp-content/plugins/ directory in your web space.
Activate the plugin from the Plugins dashboard.

For Multisite installation

Log in to your primary site and go to “My Sites” » “Network Admin” » “Plugins”.
Install the plugin following one of the above ways.
Network-activate the plugin. (Only the main site can access the full network-wide cleanup tools.)

Where is the plugin menu?

The plugin can be accessed via “Dashboard” » “WP DB Cleaner” or “Dashboard” » “Tools” » “WP DB Cleaner” (depending on your settings).

FAQ

Why should I “clean my database”?: As you use WordPress, your database accumulates a large amount of unnecessary data such as revisions, spam comments, trashed comments, and more. This clutter slowly increases the size of your database, which can make your site slower and make backups take longer. Cleaning this data keeps your site lighter, faster, and easier to maintain.
Is it safe to clean my database?: Yes, it is safe. The plugin does not run any code that can break your site or delete posts, pages, or approved comments. It only removes items that WordPress considers unnecessary. However, you should always back up your database before performing any cleanup. This is required, not optional—backups ensure you can always restore your site if something unexpected happens.
Why should I “optimize my database”?: Optimizing your database reclaims unused space and reorganizes the way data is stored inside your tables. Over time, tables become fragmented, especially on active websites. Optimization reduces storage usage and improves the speed at which your database responds. This process is safe and can significantly improve performance on large or busy websites.
Is it safe to clean the cron (scheduled tasks)?: Cron jobs allow WordPress and plugins to run tasks automatically (like checking for updates or sending emails). When a plugin is removed, some of its cron jobs may remain behind. These leftover tasks serve no purpose and can slow down wp-cron events. Cleaning unnecessary cron jobs is safe as long as you know which ones should be removed. If you are unsure, it is safer not to delete any cron jobs manually.
What are “revisions”? What SQL code is used to clean them?: WordPress stores revisions for each saved draft or update so you can review older versions. Over time, these accumulate and take up space.
SQL used by the plugin to delete revisions:
DELETE FROM posts WHERE post_type = ‘revision’
What are “auto drafts”? What SQL code is used to clean them?: WordPress automatically creates auto-drafts while you are editing posts/pages. If those drafts are never published, they remain in the database.
SQL used by the plugin to delete auto-drafts:
DELETE FROM posts WHERE post_status = ‘auto-draft’
What are “pending comments”? What SQL code is used to clean them?: Pending comments are comments waiting for your approval. If you have many bots submitting comments, this list can grow quickly.
SQL used by the plugin to delete pending comments:
DELETE FROM comments WHERE comment_approved = ‘0’
What are “spam comments”? What SQL code is used to clean them?: Spam comments are comments flagged as spam by you or by an anti-spam plugin. They can safely be deleted.
SQL used by the plugin to delete spam comments:
DELETE FROM comments WHERE comment_approved = ‘spam’
What are “trash comments”? What SQL code is used to clean them?: Trash comments are deleted comments moved to the trash. They are no longer visible and can be permanently removed.
SQL used by the plugin to delete trash comments:
DELETE FROM comments WHERE comment_approved = ‘trash’
What are “trackbacks”? What SQL code is used to clean them?: Trackbacks are a legacy system used by WordPress to allow one website to notify another that it has linked to its content. When a site receives a trackback, it appears as a type of comment on the post. Because trackbacks can be sent manually, they became heavily abused by spammers who use them to post unwanted links on websites.
SQL used by the plugin to delete trackbacks:
DELETE FROM comments WHERE comment_type = ‘trackback’
What are “pingbacks”? What SQL code is used to clean them?: Pingbacks are an automated notification system used by WordPress. When one website publishes a link to another site’s post, WordPress sends a pingback request to the linked site. If accepted, the pingback appears as a type of comment, confirming that another site has referenced your content. Because pingbacks are automated, they are often exploited by bots to generate spam requests.
SQL used by the plugin to delete pingbacks:
DELETE FROM comments WHERE comment_type = ‘pingback’
What is “unused post meta”? What SQL code is used to clean it?: Post meta stores additional information for posts. When a post is deleted, some metadata may be left behind. This leftover “unused” data can grow over time.
SQL used by the plugin to delete unused post meta:
DELETE pm FROM postmeta pm LEFT JOIN posts wp ON wp.ID = pm.post_id WHERE wp.ID IS NULL
What is “unused comment meta”? What SQL code is used to clean it?: Comment meta stores extra information for comments. When a comment is removed, some metadata may remain in the database.
SQL used by the plugin to delete unused comment meta:
DELETE FROM commentmeta WHERE comment_id NOT IN (SELECT comment_ID FROM comments)
What is “unused user meta”? What SQL code is used to clean it?: User meta stores additional data for users. If a user is deleted, their metadata may not be removed automatically.
SQL used by the plugin to delete unused user meta:
DELETE FROM usermeta WHERE user_id NOT IN (SELECT ID FROM users)
What is “unused term meta”? What SQL code is used to clean it?: Term meta stores extra information for taxonomy terms (categories, tags, etc.). If a term is removed, its metadata may remain behind.
SQL used by the plugin to delete unused term meta:
DELETE FROM termmeta WHERE term_id NOT IN (SELECT term_id FROM terms)
What are “unused relationships”? What SQL code is used to clean them?: The wp_term_relationships table links posts to categories/tags. When posts are deleted, related entries may remain in this table, taking unnecessary space.
SQL used by the plugin to delete unused relationships:
DELETE FROM term_relationships WHERE term_taxonomy_id=1 AND object_id NOT IN (SELECT id FROM posts)
What are “expired transients”?: Transients are temporary cached data stored by plugins or themes. When they expire, they should be removed automatically. However, some expired transients may remain in the database. These can be safely cleaned to free space.
Is this plugin compatible with multisite?: Yes, the plugin is compatible with multisite. For safety, only the main site can clean the database for the entire network. Sub-sites cannot perform cleanup operations to avoid accidental damage.
Is this plugin compatible with SharDB, HyperDB, or Multi-DB?: Not yet. The plugin is not currently compatible with SharDB, HyperDB, or Multi-DB setups. Support may be added in future versions.
Does this plugin clean itself after uninstall?: Yes. The plugin removes all of its data and settings when uninstalled. A cleanup plugin that leaves clutter would not make sense!

Reviews

webstpro 13 ธันวาคม 2025

I have been running this once a month now for 5 years. Very much needed to keep you website in order.

llunainvestments 13 ธันวาคม 2025

this is the best of all of them

santoshk6 11 ธันวาคม 2025

I love this plugin, I don’t manage it, it’s just there managing my wordpress clearing those transients every night without a hassle. I recommend everyone to use it.

barbaroshh 11 ธันวาคม 2025

çok iyi

harijipi 11 ธันวาคม 2025

greaat very useful

hcmnichovice 10 ธันวาคม 2025

Monitoring is clear and user-friendly.

Read all 1,807 reviews

Contributors & Developers

“Advanced Database Cleaner – Optimize & Clean database to Speed Up Site Performance” is open source software. The following people have contributed to this plugin.

Younes JFR.

“Advanced Database Cleaner – Optimize & Clean database to Speed Up Site Performance” has been translated into 12 locales. Thank you to the translators for their contributions.

Translate “Advanced Database Cleaner – Optimize & Clean database to Speed Up Site Performance” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

4.0.2 – 05/12/2025

Fix: Conflict with another plugin injecting links into our plugin settings
Fix: Syntax error: unexpected ‘…’ (T_ELLIPSIS), expecting ‘]’
Fix: Deletion of transients and expired_transients in multisite within the sitemeta table when the transient’s site_id is invalid
Fix: Duplicate “squared” transients and expired transients being displayed
Tweak: Synchronize Axios timeout (React) with PHP max execution time to avoid early request timeouts
Tweak: In trashed comments, count only trashed comments and ignore comments belonging to trashed posts
Tweak: Use crc32 hashing to speed up detection of duplicate values
Tweak: General code cleanup and optimization
Tweak: [Premium] Added new WordPress-related items for improved identification
New: [Free] new setting allowing to control the number of items retrieved from the database per request for better performance.
New: Choose between native WordPress functions or direct SQL queries for deleting items (new setting added).
New: Items in the General Cleanup page are now loaded individually, so content appears immediately without waiting for all items.
New: Items can now be deleted one by one in General Cleanup without reloading the entire list after each action.
Compatibility: Tested with WordPress 6.9

4.0.1 – 01/12/2025

Fix: handling FS_METHOD ftpext in the file system class.
Fix: sub-sites in Multisites were not loaded correctly
Fix: options and other items cannot be deleted in free version.

4.0.0 – 28/11/2025

Version 4.0.0 marks the biggest upgrade ever released for Advanced Database Cleaner. This major update introduces a completely redesigned interface for a smoother, faster, and more intuitive experience. It also brings powerful new features, an enhanced two-step scan engine for unmatched accuracy, and advanced security improvements that make database maintenance safer than ever. With better performance, more flexibility, and a modern UI, version 4.0.0 sets a new standard for professional WordPress database optimization.

New: Duplicated post meta cleanup type.
New: Duplicated user meta cleanup type.
New: Duplicated comment meta cleanup type.
New: Duplicated term meta cleanup type.
New: oEmbed caches cleanup type.
New: Estimated size to clean displayed for each cleanup type, plus a total freed-space summary before running a cleanup.
New: Sorting capability added to cleanup preview tables (e.g. by name, date, size, site ID).
New: Value viewer added to several cleanup types, displaying serialized or JSON data in raw or formatted views.
New: Dedicated Post Meta Management module to list, sort, inspect, and clean post meta, including detection of unused and duplicated metadata.
New: Dedicated User Meta Management module to list, sort, inspect, and clean user meta, including detection of unused and duplicated metadata.
New: Dedicated Transients Management module to inspect, sort, and clean transients, with expiration tracking, detection of large transients, and control over their autoload status.
New: Tables Management can now detect tables with invalid prefixes that do not belong to the current WordPress installation, with their visibility controlled from the Settings page.
New: Options Management now includes a formatted value viewer, detection of large options, and warnings for heavy autoloaded options to help reduce autoload size.
New: Cron Jobs Management now includes detection of cron jobs with no valid action/callback to help you clean them safely.
New: All six management modules now detect items owned by WordPress core and Advanced Database Cleaner, making it clearer where data comes from.
New: All six management modules now include an Attention Area that highlights priority issues, warns you about items requiring action, and helps you quickly identify and target them.
New: Introduced a built-in error and exception logging system, allowing logs to be copied or downloaded for support or user-side investigations.
New: Added tools to display the current database size, show or hide the plugin’s menu tabs, and access the WordPress debug log directly from the interface.
New: Modern, fully responsive interface rebuilt with React for a smoother, faster, and more intuitive user experience.
Enhanced: Cleaning process in the General Cleanup module now uses WordPress native deletion functions for deeper, hook-aware cleanup, with direct SQL deletion kept only as a safe fallback when required.
Enhanced: Automation is now centralized into a unified module with a clearer creation/edit flow and consistent use of the local timezone for all schedules.
Enhanced: Options, Tables, and Cron Jobs modules now display richer information with additional columns and more detailed data for each item.
Enhanced: System Info is now far more detailed and can be copied or downloaded, making it easier to share environment details, diagnose issues, and assist users during support.
Enhanced: Overall multisite support now provides clearer separation between network and site data and safer network-wide cleanup and optimization.
Enhanced: Backend architecture migrated to a REST API–driven system for significantly faster interactions and navigation without page reloads.
Enhanced: Numerous bugs and edge cases were resolved across all modules, resulting in more stable behavior and more reliable, effective cleaning operations.
Premium: New – Action Scheduler completed actions cleanup type.
Premium: New – Action Scheduler failed actions cleanup type.
Premium: New – Action Scheduler canceled actions cleanup type.
Premium: New – Action Scheduler completed logs cleanup type.
Premium: New – Action Scheduler failed logs cleanup type.
Premium: New – Action Scheduler canceled logs cleanup type.
Premium: New – Action Scheduler orphan logs cleanup type.
Premium: New – “Keep last X items” rule introduced, either per parent (e.g. keep 5 revisions per post) or globally (e.g. keep the last 10 pingbacks), in addition to the existing “keep last X days” rule.
Premium: New – Introduced Remote Scan system that combines the local scan with our cloud-based detection engine and continuously curated ownership database to deliver near-perfect accuracy when identifying the true owners of tables, options, post meta, user meta, transients, and cron jobs.
Premium: New – Added the ability to anonymously send your ownership corrections to improve our global detection database and refine ownership results for all users.
Premium: New – “Keep last X items” rule now configurable inside scheduled tasks, in addition to the existing “keep last X days”, for more advanced and safer automated cleanups.
Premium: New – Introduced Database Analytics module with daily and monthly charts, raw data views, and per-table analytics (size evolution, rows evolution, daily change breakdown), including multi-table selection for comparative analysis.
Premium: New – Introduced Addons Activity module that automatically tracks plugin and theme activations, deactivations, uninstalls, and theme switches in a color-coded timeline using your local timezone.
Premium: New – Added multisite filters to the General Cleanup preview, allowing items to be filtered by site ID or site name so you can focus on a specific site in the network.
Premium: New – Introduced per-automation event logs showing what was cleaned, when each task ran, and how many items were processed.
Premium: Enhanced – Scan process fully redesigned for greater robustness and accuracy, combining an improved local scan with Remote Scan results.
Premium: Enhanced – Scan flow now offers clearer insights, guidance, and error handling throughout each step of the process.
Premium: Enhanced – “Belongs to” ownership column enriched with cloud-backed data across all management modules for more accurate owner detection.
Premium: Enhanced – Detailed ownership info modal added, showing all known plugins/themes related to each item.
Premium: Enhanced – Owner status indicators added (active, inactive, or not installed) to support deeper investigations.
Premium: Enhanced – Filtering capabilities expanded across all management modules with new filters by size, value content, autoload, expiration, owner type (plugin, theme, WordPress core, orphan, unknown), duplicates, unused, large, not-yet-scanned, and more, including filtering specifically by a chosen plugin or theme.
Premium: Enhanced – Multisite experience improved with clearer cross-site visibility, safer network-level operations, and tighter integration of ownership and analytics across all sites.
Premium: Enhanced – Numerous bugs and edge cases were resolved across all premium features, resulting in more stable behavior and more reliable, effective cleaning operations.

3.1.6 – 24/03/2025

Fix: names containing HTML were not displayed correctly.
Fix: certain transients, options, tables, and cron jobs could not be deleted.
Fix: function _load_textdomain_just_in_time was called incorrectly.
Fix: after optimizing tables, the plugin now refreshes the data to accurately reflect the database’s real status.
Fix: enhanced the plugin’s security.
Fix (PRO): sometimes users were unable to deactivate their license.
Tweak: improved how the plugin edits the autoload value for options.
Tweak: increased the max_execution_time only after a scan has started, and under specific conditions.
Tweak: cleaned up and enhanced some PHP, CSS, and JS code parts.
New: the Options tab now displays the total size of autoloaded options.
New: in Multisite, users can now choose to display the plugin menu in the Network Admin panel.
New (PRO): added support for new autoload option values in filters: on, auto, auto-on, auto-off.
New (PRO): users can now assign items to WordPress using the “manual categorization” feature.

3.1.5 – 19/09/2024

Fix: Automatic conversion of false to array is deprecated
Fix: Cannot modify header information – headers already sent..
Fix: Object of class stdClass could not be converted to string

3.1.4 – 23/01/2024

Security: enhancing the security by avoiding deserialization (thanks to Richard Telleng from Wordfence)
PRO: fix endless scan reloading
PRO: fix PHP warning: Implicit conversion from float to int
PRO: some code cleanup

3.1.3 – 12/09/2023

Security: enhancing the security by sanitizing some parameters
Fix: fixed ‘Constant FILTER_SANITIZE_STRING is deprecated in PHP 8’
Fix: fixed ‘Undefined property : stdClass::$data_free’
Fix: fixed ‘PHP Fatal error: Uncaught TypeError: date(): Argument #2 ($timestamp) must be of type ?int’
Tweak: better handling of nonces
Compatibility: tested with the latest version of WordPress 6.3.1

3.1.2 – 22/02/2023

Security fix: when saving the settings
Fix: changing the ‘autoload’ of an option may sometimes result in it being created twice
Fix: activating both the free and pro versions together causes compatibility issues
Tweak: enhancing some blocks of code to use Ajax
Tweak: better handling the use of the WP_List_Table class
Tweak (PRO): enhancing the license page + the update process of the plugin
Compatibility: Tested with the latest version of WordPress 6.1.1

3.1.1 – 24/06/2022

Security fix: enhancing the security of the plugin by escaping some URLs before outputting them

3.1.0 – 16/06/2022

Fix: fixing the error ‘Fatal error: Can’t use function return value in write context’
Fix: fixing the Warning: count(): Parameter must be an array or an object that implements Countable
Tweak: correcting of some typos and grammar
Tweak: deleting some useless data from “overview & settings” tab
Tweak: enhancing the CSS code, the plugin is responsive now and can be used in small screens
Tweak: enhancing some blocks of PHP code
New: adding “delete filter” for custom cleanup elements in “general cleanup” tab
Info: since we have changed a lot of CSS code, please refresh your browser cache or click “Ctrl + F5”
Info: great feature will be added to the next version

3.0.4 – 21/01/2022

Tweak: Enhancing the security of the plugin
Tweak: Testing the plugin with latest versions of WP

3.0.3 – 06/10/2020

Tweak: Cleaning the code by deleting unused blocks of code
Tweak: Enhancing the security of the plugin

3.0.2 – 01/09/2020

Fix: fixing an issue in the general cleanup tab preventing users from deleting orphaned items
Tweak: we are now using SweetAlert for all popup boxes
Tweak: enhancing the JavaScript code
Tweak: enhancing some blocks of code
Tweak: enhancing the security of the plugin

3.0.1 – 26/08/2020

Fix: some calls in the JS file has been corrected
Fix: the warning “Deprecated: array_key_exists()” is now solved
Fix: an issue of ‘failed to open stream: No such file or directory’ is now solved
Tested with WordPress 5.5
New features very soon!

3.0.0 – 05/12/2019

IMPORTANT NOTICE FOR PRO USERS: After you upgrade to 3.0.0 from an old version, you will notice that WordPress has deactivated the plugin due to an error: ‘Plugin file does not exist’. This is because we have renamed the pro plugin folder name from “advanced-db-cleaner” to “advanced-database-cleaner-pro”, causing the WordPress to not being able to find the old one and therefore deactivating the plugin. Just activate it again. It doesn’t break anything. Once you activate the plugin again it will continue working normally without any issues. You will also probably lose the pro version after this upgrade (This is due to a conflict between the free and pro versions which is now solved). If it is the case, please follow these steps to restore your pro version with all new features: (https://sigmaplugin.com/blog/restore-pro-version-after-upgrade-to-3-0-0)
COMPATIBILITY: The plugin is tested with WordPress 5.3
CHANGE: Some changes to readme.txt file
REMOVE: Drafts are not cleaned anymore in 3.0.0 since many users have reported that drafts are useful for them
New: You can now clean up new items: pingbacks, trackbacks, orphaned user meta, orphaned term meta, expired transients
New: The plugin icon in the left side menu has been changed to white color
New: Change text-domain to ‘advanced-database-cleaner’
New: Enhancements to the look and feel of the plugin
New: The sidebar has been changed for the free version and deleted in the pro version
New: For options, we have added the option size column and two new actions: Set autoload to no / yes
New: For tables, we have added two actions: Empty tables and repair tables
New: You can now order and sort all items
New: You can change the number of items per page
New: You can keep last x days’ data from being cleaned and clean only data older than the number of days you have specified
New: You can specify elements to cleanup in a scheduled task. You can also create as many scheduled tasks as you need
New: Add information to each line of unused data in ‘General clean-up’ tab to let users know more about each item they will clean
New: Display/view items before cleaning them (in ‘General cleanup’ tab) is now in the free version
New: Add a new setting to hide the “premium” tab in the free version
Fix: Repair some strings with correct text domain
Fix: Some tasks with arguments can’t be cleaned. This is fixed now
Fix: Some tasks with the same hook name and different arguments were not displayed. This is fixed now
Fix: In some previous versions, tables were not shown for some users. This has been fixed
PERFORMANCE: All images used by the plugin are now in SVG format
PERFORMANCE: Restructuring the whole code for better performance
SECURITY: add some _wpnonce to forms
New (PRO): Add “Pro” to the title of the pro version to distinguish between the free and the pro versions
New (PRO): You can now search and filter all elements: options, tables, tasks, etc. based on several criteria
New (PRO): Add progress bar when searching for orphan items to show remaining items to process
New (PRO): Add a category called “uncategorized” to let users see items that have not been categorized yet
Fix (PRO): The activation issue is now fixed
Fix (PRO): The scan of orphaned items generated timeout errors for big databases, we use now ajax to solve this
Fix (PRO): A conflict between the free and the pro versions is now solved
PERFORMANCE (PRO): We are now using an enhanced new update class provided by EDD plugin
PERFORMANCE (PRO): Set autoload to no in all options used by the plugin
PERFORMANCE (PRO): The plugin does not store scan results in DB anymore. We use files instead
SECURITY (PRO): The license is now hidden after activation for security reasons
WEBSITE (PRO): You can now view your purchase history, downloads, generate an invoice, upgrade your license, etc. Read more
WEBSITE (PRO): Enhancements of the plugin premium page

2.0.0

Some changes to readme.txt file
Changing the way the plugin can be translated
Correcting __() to some texts
Correcting some displaying texts
Big change in styles
Restructuring the whole code for better performance
Creation of the plugin main page: (https://sigmaplugin.com/downloads/wordpress-advanced-database-cleaner)
Adding language translation support
Correct the time zone offset for the scheduled tasks
Skipping InnoDB tables while optimizing
Change size of lost tables data from ‘o’ to ‘KB’
Main menu is now under ‘Tools’ not ‘settings’
Adding separate left menu (can be disabled)
Adding overview page with some useful information
Adding settings page
“Reset database” is now in a separate plugin (please view our plugins page)
Multisite: now only the main site can clean the network
New feature: Display/view items before cleaning them (Pro)
New feature: view and clean options
New feature: Detect orphan options, plugins options, themes options and WP options (Pro)
New feature: view and clean cron (scheduled tasks)
New feature: Detect orphan tasks, plugins tasks, themes tasks and WP tasks (Pro)
New feature: view and clean database tables
New feature: Detect orphan tables, plugins tables, themes tables and WP tables (Pro)

1.3.7

Adding “clean trash-posts”
Updating FAQ
Updating readme file
Tested up to: 4.4

1.3.6

Fixing a problem in donate button
Using _e() and __() for all texts in the plugin

1.3.5

New feature: Adding “Clean Cron”. You can now clean unnecessary scheduled tasks.
Updating FAQ

1.3.1

Adding FAQ

1.3.0

Some code optimizations
New feature: Support multisite. You can now clean and optimize your database in multisite installation.

1.2.3

Some optimizations and style modifications
New feature: Adding the scheduler. You can now schedule the clean-up and optimization of your database.

1.2.2

Some optimizations and style modifications

1.2.1

Some optimizations and style modifications
“Clean database” tab shows now only elements that should be cleaned instead of listing all elements.
“Clean database” tab shows now an icon that indicates the state of your database.
“Optimize database” tab shows now only tables that should be optimized instead of listing all tables.
“Optimize database” tab shows now an icon that indicates the state of your tables.
“Reset database” shows now a warning before resetting the database.

1.2.0

Some optimizations and style modifications
New feature: Adding “Reset database”

1.1.1

Some optimizations and style modifications
Adding “Donate link”

1.1.0

Some optimizations and style modifications
New feature: Adding “Optimize Database”

1.0.0

First release: Hello world!