Memory Limit Manager
Easily manage memory limits through a beautiful admin interface with advanced conflict detection.
Solid choice
Memory Limit Manager is a solid plugin choice in 2026, with a few things worth checking first. It runs on 500+ sites and was last updated 4 weeks ago, and scores 70/100 on our health check.
- Actively developed — last update 4 weeks ago
- Tested with the latest WordPress (7.1)
- Momentum — downloads up 218.1% vs the previous 30 days
- Small user base (500+ active installs)
- Very few reviews so far
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Memory Limit Manager stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| memory | #7 |
| memory limit | #4 |
| optimization | >100 |
| performance | >100 |
| wp-config | #80 |
Version adoption
Share of active sites per release.
About Memory Limit Manager
From the official readme · v1.0.4Description
Memory Limit Manager makes it incredibly easy to configure your memory limits without manually editing wp-config.php. With a beautiful, user-friendly interface and powerful features, you can increase memory limits with a single click.
Key Features
- One-Click Updates – Change memory limits with a single button click
- Quick Presets – Common configurations (128M/256M, 256M/512M, 512M/1G, 1G/2G)
- Automatic wp-config.php Backup – Keeps one recent timestamped backup of your wp-config.php file and auto-restores on failure
- Conflict Detection – Identifies if memory limits are defined elsewhere
- System Diagnostics – File permissions and writability checks
- Manual Fallback – Copy-paste code if automatic updates don’t work
- Opcode Cache Clearing – Immediate effect after changes
- Beautiful UI – Modern, card-based layout with real-time validation
Why Use This Plugin?
Manually editing wp-config.php can be:
– Intimidating for non-technical users
– Error-prone (syntax errors can break your site)
– Difficult to verify if changes took effect
Memory Limit Manager solves all these problems with a safe, user-friendly interface that handles everything automatically.
What It Does
This plugin allows you to configure two WordPress memory limit constants:
1. WP_MEMORY_LIMIT – Controls memory available on the frontend (default: 40M)
2. WP_MAX_MEMORY_LIMIT – Controls memory available in admin area (default: 256M)
Increasing these values can help resolve:
– “Memory exhausted” errors
– Plugin/theme activation failures
– Image upload problems
– Slow admin performance
Automatic Backup System
For your safety, the plugin automatically backs up your wp-config.php file before making any changes:
- Backup File Name: wp-config.mlm-backup-2026-09-02-183045.php (timestamped using your site’s configured time zone)
- Location: Same directory as your wp-config.php file
- Number of Backups: Keeps only the most recent backup, replacing the previous one
- Automatic Restore: If any error occurs during update, your original wp-config.php is automatically restored
- Manual Restore: You can manually restore the backup file via FTP/cPanel if needed
This means you can update memory limits with confidence, knowing your configuration is always protected.
Security
- Nonce verification for CSRF protection
- Capability checks (administrator-only access)
- Input sanitization and validation
- Secure file operations with error recovery
Documentation
Documentation is available here: https://muhammadshakeel.com/memory-limit-manager-documentation/
Support
For support, please visit: https://wordpress.org/support/plugin/memory-limit-manager/
Developer
Memory Limit Manager is developed and maintained by Muhammad Shakeel.
Website: https://muhammadshakeel.com/
Installation
Automatic Installation
- Log in to your admin panel
- Navigate to Plugins → Add New
- Search for “Memory Limit Manager”
- Click Install Now and then Activate
Manual Installation
- Download the plugin ZIP file
- Log in to your WordPress admin panel
- Navigate to Plugins → Add New → Upload Plugin
- Choose the downloaded ZIP file and click Install Now
- Click Activate
After Activation
- Go to Settings → Memory Manager
- Set your desired memory limits or use Quick Presets
- Click “Update Memory Limits”
- Done! Your new memory limits are active immediately
Frequently asked questions
Is this plugin free?
Yes! Memory Limit Manager is 100% free and open source.
Will this work with my hosting?
Yes, as long as your wp-config.php file is writable. Most hosting providers allow this.
Can I undo changes?
Absolutely! The plugin automatically backs up your wp-config.php file (not your entire site) before making any changes. The backup file is named like: wp-config.mlm-backup-2026-09-02-183045.php You can find it in the same directory as your wp-config.php file. To restore manually, replace wp-config.php with the backup using FTP or cPanel File Manager.
What if automatic updates don’t work?
No problem! The plugin provides a manual configuration option with copy-paste code that you can add to wp-config.php via FTP or cPanel.
What exactly gets backed up?
Only your wp-config.php file is backed up – NOT your entire site, database, or other files. This is a safety measure specific to the configuration file that gets modified. The backup happens automatically every time you update memory limits.
Is it safe to use?
Absolutely! The plugin follows WordPress security best practices, creates automatic wp-config.php backups, and validates all input before making changes. If anything goes wrong during an update, your original wp-config.php is automatically restored.
Does it work with multisite?
Yes, the plugin is multisite compatible.
Will it conflict with other plugins?
No, the plugin includes conflict detection and will warn you if memory limits are defined elsewhere (themes, mu-plugins, or other plugins).
What values should I use?
Use the Quick Presets as a starting point: * Small sites (blogs): 128M / 256M * Standard sites: 256M / 512M * Large sites (e-commerce): 512M / 1G * Enterprise sites: 1G / 2G
Changelog
The single retained backup now includes its creation timestamp in the filename.
1.0.4 – 2026-09-02
- Adds the backup creation timestamp to the filename using the site’s configured time zone
- Continues to keep only the most recent backup and removes older plugin backups
1.0.3 – 2026-09-02
- Introduced single-backup retention in place of multiple backup files
- Used a fixed PHP-safe backup filename, superseded by timestamped single-backup filenames in 1.0.4
- Removes legacy timestamped backup files after a successful update
1.0.2 – 2026-09-02
- Confirmed compatibility with WordPress 7.1
- Restores the original wp-config.php file when post-write verification fails
- Preserves adjacent code and comments when updating existing memory-limit definitions
- Clarified when newly saved memory limits take effect
1.0.1 – 2026-01-15
- Updated all plugin links to point to official WordPress.org pages
- Plugin Page now links to wordpress.org/plugins/memory-limit-manager/
- Support links now direct to wordpress.org support forum
- Improved banner quality for retina displays
- Enhanced automatic backup feature documentation (clarifies wp-config.php backup, not entire site)
- Documented the backup naming and retention policy used at that time, later superseded
- New “Automatic Backup System” section in description
- Updated FAQ with backup-specific questions
- Added prominent “Automatic Safety Backup” info box in admin interface
- Updated admin warning message to mention automatic backup creation
1.0.0 – 2026-01-07
- Initial public release
- One-click memory limit updates
- Quick preset configurations
- Automatic backup creation
- Opcode cache clearing
- Conflict detection system
- System diagnostics
- Manual configuration fallback
- Real-time input validation
- Beautiful, modern UI
- Comprehensive documentation
- Security-hardened (nonce verification, capability checks, input sanitization)
- PHP 7.4+ and WordPress 6.0+ support
Screenshots
For developers
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Best Memory Limit Manager alternatives
All memory plugins →
FAQ
Memory Limit Manager: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 2, 2026
Is Memory Limit Manager free?
Yes. Memory Limit Manager is free to download and use from the official WordPress.org plugin directory.
Is Memory Limit Manager safe to use in 2026?
Memory Limit Manager is a solid plugin choice in 2026, with a few things worth checking first. It runs on 500+ sites and was last updated 4 weeks ago, and scores 70/100 on our health check.
How many websites use Memory Limit Manager?
Memory Limit Manager is active on 500+ WordPress websites and has been downloaded 2,123 times since it launched in January 2026. It was downloaded 722 times in the last 30 days.
Does Memory Limit Manager work with WordPress 7.1?
Yes. The developer has tested Memory Limit Manager up to WordPress 7.1.2, the latest release. It requires WordPress 6.0 or newer.
What PHP version does Memory Limit Manager need?
Memory Limit Manager requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Memory Limit Manager last updated?
The latest version, 1.0.4, was released on September 2, 2026 (4 weeks ago).
Who makes Memory Limit Manager?
Memory Limit Manager is developed and maintained by Muhammad Shakeel.
What are the best alternatives to Memory Limit Manager?
The most popular alternatives to Memory Limit Manager are Server IP & Memory Usage Di… (20K+ installs), WP-Memory-Usage (10K+ installs) and UsageDD (1K+ installs).
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