9 Best Monitoring Tools in 2026

Zuzia App

Monitor servers & websites with intelligent automation

free + from $19/mo

Track server performance, automate tasks, and manage SSL checks from one dashboard. AI-powered alerts reduce noise by 90%. Free forever plan available.

Sentry

Powerful error tracking and performance monitoring

Open Sourcefree + from $26/mo

Sentry helps developers identify, debug and resolve issues in real-time across platforms and programming languages.

BetterStack

Ship higher-quality software faster. Be the hero.

free + from $29/mo

Get unified observability for your stack. Monitor uptime, manage logs, handle incidents, and debug issues faster to ship higher-quality software.

OpenReplay

Self-hosted session replay and analytics platform

Open Sourcefree + pay as you go

Open-source tool for session replay, product analytics, and performance monitoring, offering full data control through self-hosting or cloud options.

Rollbar

Real-time error tracking and debugging for developers

free + from $19/mo

Rollbar offers instant error alerts, AI-powered grouping, and comprehensive debugging tools to help software teams find and fix issues faster.

Airbrake

Real-time error monitoring for fearless deployments

from $19/mo

Catch and fix bugs before customers notice with Airbrake's error monitoring and performance tracking platform

LogRocket

AI-powered session replay and analytics for web and mobile

free + from $69/mo

LogRocket provides session replay, product analytics, and error tracking to help you build better digital experiences.

NetData

Real-time infrastructure monitoring made simple

Open Sourcefree + from ~$5/mo

Netdata offers high-resolution, real-time monitoring for systems, hardware, containers, and applications with zero configuration needed.

Highlight

Open source monitoring platform for full-stack visibility

Open Sourcefree + from $50/mo

Comprehensive monitoring solution offering session replay, error tracking, logging, tracing, and metrics for web applications

Monitoring Tools

A curated collection of the best systems that observe application and infrastructure performance, health, and activity to detect issues and ensure operational reliability.