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Free Plugin by berkux v2.3.0

WP-Memory-Usage

Monitor PHP memory usage, set alert thresholds, and diagnose your server configuration — directly inside WordPress admin.

WP-Memory-Usage

The facts

Rating
4.5★ from 21
Active installs
10k+
Price
Free
Last updated
25 May 2026
Added
Jun 2009
Requires WP
5.3
Tested up to
WP 7.0.4
Requires PHP
7.4
Downloads
307,942

Our analysis

AI-assisted

WP-Memory-Usage is a WordPress plugin designed to monitor and display memory usage within the WordPress admin area. It provides site administrators and developers with essential data to manage memory consumption effectively, helping to identify potential bottlenecks before they impact users.

The plugin displays current memory usage against WordPress and PHP limits, and includes a dashboard widget that provides detailed insights into memory limits, peak usage, and server information. It also features alert settings, logging options, and diagnostic tools to assist users in managing their site's performance.

Best for: This plugin is suitable for site administrators and developers who need to monitor memory usage on their WordPress sites.

What it does well

  • Displays real-time memory usage in the admin area
  • Colour-coded progress bar for quick status recognition
  • Configurable email alerts for memory thresholds
  • Includes detailed logging and diagnostic features
  • Multisite compatible

Where it falls short

  • No information on support or documentation
  • Limited details on user experience or interface

Verdict

WP-Memory-Usage offers valuable insights into memory management for WordPress sites. It is a practical tool for those looking to optimise site performance.

From the developer

berkux's own description of WP-Memory-Usage, lightly tidied.

WP-Memory-Usage is a lightweight but powerful WordPress plugin that monitors and displays memory usage directly in your WordPress admin area.
It is essential for site administrators and developers who need to keep an eye on memory consumption, identify bottlenecks, and act before users are affected.

What the plugin shows:

In the admin footer (every admin page):
* Current memory usage vs. WordPress limit (with percentage)
* Current memory usage vs. PHP limit (with percentage)
* Server IP address and server name
* PHP version

In the Dashboard widget (“Memory Overview”):
* PHP version, architecture (32/64 bit), max execution time
* WordPress memory limit (WP_MEMORY_LIMIT), WordPress admin limit (WP_MAX_MEMORY_LIMIT), PHP memory limit
* Current peak memory usage with a visual progress bar (colour-coded: green / orange / red)
* Latest digest status summary (warn / danger / critical badges)
* Link to the Threshold Alerts settings page

Settings & Monitor — Tabs (since 2.0.0):

  • Settings — thresholds, logging options, email alerts, log rotation
  • History — latest logged requests with full context (URL, type, user, memory)
  • Digest — aggregated summaries of past log intervals; browse, merge, and delete digest files
  • ️Actions — practical guidance on what to do when you receive a memory alert
  • Diagnose (new in 2.1.0) — full PHP/WordPress configuration snapshot with a ready-to-paste AI prompt for analysis
  • Memory Thresholds — current limits, threshold assessment, and recommendations
  • Check Installation — verifies that the plugin can run correctly on your server

Why Use WP-Memory-Usage?

Excessive memory usage leads to slower sites, HTTP 500 errors, and failed background jobs (cron, imports, backups). WP-Memory-Usage gives you the information you need to act before users are affected — without overwhelming you with notifications.

Features

  • Real-time memory display in the dashboard widget and every admin page footer
  • Colour-coded progress bar (green / orange / red) for instant status recognition
  • Three alert levels: Warning, Danger, Critical — each configurable as a percentage of the effective memory limit
  • Flexible logging: Ajax, REST, Admin, Cron, favicon requests — log only what matters
  • Email alerts with configurable recipient
  • History tab: recent requests with full context (URL, type, admin screen, REST route, AJAX action, user)
  • Digest tab: aggregated interval reports — browse, merge, and delete digest files
  • Actions tab: plain-language guidance on resolving memory alerts, no developer skills required
  • Diagnose tab (new in 2.1.0): full configuration snapshot + one-click AI prompt (English, copy & paste ready)
  • Memory Thresholds tab: shows effective limits, threshold gaps, and concrete recommendations
  • Check Installation tab: verifies log directory, WP-Cron, PHP functions, disk space, and email setup
  • Admin bar indicator: quick status badge visible on every admin page
  • Multisite compatible
  • Clean uninstall: removes all options, cron jobs, database-tables and log files on deletion

PluginCheck-Plugin Status

Plugin is compatible with PluginCheck-Plugin. Note regarding “trademarked_term”: “WP-Memory-Usage” and “wp-memory-usage” are today considered restricted terms. This plugin entered the WordPress repository in 2009, when those terms were permitted.

Credits

Copyright 2009–2013 by Alex Rabe, 2022– Bernhard Kux

Read the full description on the official page →

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