You are here18 tools

18 Monitoring tools

No reader votes yet, so reviews and saves set the order. 13 have a free way in.

Monitoring tools watch websites, apps, and technical systems for problems. They can spot errors, slow pages, or service outages. For example, you can learn when a checkout page stops working or an app starts running slowly. This helps your team respond sooner.

Missing a tool?

All 18 tools

No reader votes yet, so reviews and saves set the order. Your vote moves a tool up this list. Press it on any row. No account needed.

What do you need to do?

Rollbar is an error logging and tracking service that provides real-time error monitoring, session replay, and root cause analysis for

Free plan

Custom pricing

No reviews yet

Error and performance monitoring tool for developers to detect, group, and fix application errors with deployment tracking and integrations.

Free plan

No reviews yet

AppSignal is an application monitoring tool providing error tracking, performance monitoring, log management, and uptime monitoring for

Free plan

No reviews yet

Monitoring and incident response for personal projects and infrastructure teams.

Free plan

Custom pricing

No reviews yet

Website monitoring and ad protection for Shopify store owners who run paid campaigns.

Free plan

No reviews yet

BugSnag is an application monitoring platform that detects, prioritizes, and helps fix errors and performance issues across mobile, web,

Free plan

Custom pricing

No reviews yet

Monitoring service for developers to track cron jobs, websites, APIs, and system heartbeats with alerts and status pages.

Free plan

No reviews yet

A web service for website speed testing, performance monitoring, and comprehensive website analysis including speed, SEO, quality, and

Free plan

No reviews yet

Error Tracking by Datadog provides automated error grouping, real-time alerts, and detailed context for debugging across multiple languages

Free plan

No reviews yet

A monitoring service providing uptime monitoring, status pages, and on-call incident management.

Free plan

from $290 per year

No reviews yet

Showing 1 to 10 of 18

Know one that belongs on this list?

No posts yet

Community Discussion

Which Monitoring tool do you use, and why?

Join the discussion

Takes a minute. No account needed.

+10 points a post

Start with a tool from the list:

3 decisions

How to choose Monitoring tools

Start with what you need to watch and how much detail you want. A simple website check is different from tracing errors inside an app or following a large technical setup.

  1. 01 of 03

    Keep a website fast and available

    For website monitoring, focus on uptime and page speed. Real user monitoring adds insight into what visitors experience.

    • Boomerr is a straightforward pick for watching website availability and page speed.
    • Pingdom helps you track website speed and the experience of real visitors.
    • Dareboost suits you when website checks also need performance work and search engine optimization audits.
    • Boomerrfreemium
    • Pingdompaid
    • Dareboostfree
  2. 02 of 03

    Find problems inside an app

    Error monitoring helps you catch failures, while automated debugging can make the cause easier to track down. Application performance monitoring is useful when you also need to understand how the app is running.

    • Rollbar focuses on catching app errors and helping you debug them automatically.
    • AppSignal brings app performance, errors, logs, and broader system visibility together.
    • Airbrake fits teams that want app performance and error monitoring in one place.
    • Rollbarfreemium
    • AppSignalfreemium
    • Airbrakefreemium
  3. 03 of 03

    Watch wider systems and incidents

    Large technical setups often need infrastructure checks and a clear way to handle incidents. This becomes more useful as services, teams, and alerts grow.

    • Nagios is built for monitoring applications and IT infrastructure, with a self-hosted option.
    • Hyperping combines website and IT infrastructure monitoring with incident management.
    • LogicMonitor covers app and infrastructure performance alongside real user monitoring and AI agent governance.
    • Nagiosfreemium
    • Hyperpingfreemium
    • LogicMonitorpaid
4 questions

Common questions

What should a monitoring tool watch?

It depends on your setup.

Common targets include website availability, page speed, app errors, application performance, logs, and IT infrastructure.

Which tools have a free plan?

Rollbar, Boomerr, Nagios, Hyperping, and AppSignal list free plans.

Cronitor also lists its Hacker plan as free.

Can monitoring tools send alerts to team services?

Yes.

Several listed tools connect with services such as Slack, Microsoft Teams, Discord, PagerDuty, Opsgenie, or Telegram.

Check the integrations for the tool you are considering.

Can I try a tool before choosing?

Many offer a free trial.

Trial periods listed here range from 14 to 30 days, and Hyperping, LogicMonitor, and Cronitor also offer public demos.