Best Free WordPress Plugins for Alerts

15 plugins compared · Updated August 2026 · Alerts

All 15 Free only Premium only

Choosing a WordPress plugin for alerts comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

1. WP-Memory-Usage Best overall 82/100
2. Meow Mailer 82/100
3. Notification 81/100
4. Melapress File Monitor 81/100
5. Mail Queue 81/100
6. Alerts for Beaver Builder 79/100
7. Alert Box Block 78/100
8. Simple Alert Blocks 78/100
9. StackWC Order Notification for WooCommerce 77/100
10. HT Security 76/100
11. Advanced Notifications 76/100
12. MainWP Post SMTP Extension 75/100
13. News Ticker 75/100
14. Pro Mail SMTP 74/100
15. Smooth SMTP 73/100

Best overall Free by berkux

WP-Memory-Usage

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

4.5★: from 21 ratings
10k+: active installs
Updated: May 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by Jordy Meow

Meow Mailer

Reliable WordPress email through the provider of your choice, with a real email log, one click resend, failure alerts and offline mode. All free.

4.9★: from 9 ratings
500+: active installs
Updated: Aug 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by Kuba Mikita

Notification

Take full control of WordPress emails and notifications. Replace default messages, add custom triggers, and send alerts via email, webhook, Slack, and …

4.6★: from 124 ratings
10k+: active installs
Updated: Mar 2026
Tested to: WP 6.9.7

WPScore

Read review View on WordPress.org

Free by Melapress

Melapress File Monitor

Get email alerts for file and permission changes on your WordPress sites. No false positives!

4.1★: from 32 ratings
6k+: active installs
Updated: Aug 2026
Tested to: WP 7.1

WPScore

Read review View on WordPress.org

Free by WDM

Mail Queue

Gain full control over your WordPress emails. Queue outgoing emails and get alerts when your site tries to send unusually high volumes.

5★: from 8 ratings
1k+: active installs
Updated: Aug 2026
Tested to: WP 7.1

WPScore

Read review View on WordPress.org

Free by Pratik Chaskar

Alerts for Beaver Builder

Url: https://wordpress.org/plugins/bb-bootstrap-alerts/ Suggestion: https://wordpress.org/plugins/beaver-builder-alerts/ Alerts for Beaver Builder An …

5★: from 3 ratings
500+: active installs
Updated: Aug 2026
Tested to: WP 7.1

WPScore

Read review View on WordPress.org

Free by bPlugins

Alert Box Block

Display alerts and notices in WordPress with a customizable Gutenberg block. Multiple alert types, ready-made presets, and dismissible boxes.

5★: from 1 ratings
400+: active installs
Updated: Jul 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by Andrew Lima

Simple Alert Blocks

Simple alert notices for the new WordPress block editor.

5★: from 3 ratings
300+: active installs
Updated: Aug 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by StackWC

StackWC Order Notification for WooCommerce

Get instant audio alert notifications when your WooCommerce store receives new orders, helping you stay on top of sales.

3.6★: from 12 ratings
800+: active installs
Updated: Aug 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by WPFastSec

HT Security

Complete Security Suite: Security Headers, CVE Detection, Core Integrity, Login Alerts, Plugin Update Management, Force Cron, and Maintenance Mode.

5★: from 1 ratings
100+: active installs
Updated: Aug 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by Yehi

Advanced Notifications

Advanced Notifications allows you to create beautiful custom notifications that appear on pages or posts of your choice.

5★: from 3 ratings
100+: active installs
Updated: Jul 2026
Tested to: WP 7.0.4

WPScore

Read review View on WordPress.org

Free by Saad Iqbal

MainWP Post SMTP Extension

Manage WP SMTP configuration from a single dashboard for all your sites. View email logs, get instant email failure alerts, and set up a backup SMTP c …

5★: from 1 ratings
300+: active installs
Updated: Mar 2026
Tested to: WP 6.9.7

WPScore

Read review View on WordPress.org

Free by A WP Life

News Ticker

A high-performance floating news ticker for WordPress featuring smooth CSS animations, a modern React dashboard, and complete customization.

1★: from 1 ratings
100+: active installs
Updated: Aug 2026
Tested to: WP 7.1

WPScore

Read review View on WordPress.org

Free by turboSMTP

Pro Mail SMTP

Enhance email deliverability with multiple SMTP providers, automatic failover, proactive alerts, analytics, and smart routing.

4.4★: from 5 ratings
300+: active installs
Updated: May 2026
Tested to: WP 6.9.7

WPScore

Read review View on WordPress.org

Free by Smmooth WP Plugins

Smooth SMTP

SMTP configuration, email logging, failure alerts, and fallback sending for WordPress.

4.7★: from 3 ratings
100+: active installs
Updated: Mar 2026
Tested to: WP 6.9.7

WPScore

Read review View on WordPress.org