PM2

Production-grade process manager for Node.js applications with over 600 million downloads.

Overview

PM2 is a production-grade process manager for Node.js applications with over 600 million downloads. It provides zero-downtime reloads, real-time monitoring, and clustering capabilities to help developers manage and scale Node.js workloads reliably.

The platform offers three tiers: PM2 Runtime (open-source process manager), PM2 Plus (monitoring and exception tracking), and PM2 Enterprise (advanced profiling, distributed tracing, and on-premise deployment). PM2 also includes an AI Assistant powered by Model Context Protocol (MCP) that integrates with Claude, Cursor, and other AI tools to provide insights into server status, metrics, logs, and alerts.

Key features

Zero-downtime reloads
Cluster mode with load balancing
Real-time web monitoring dashboard
Exception and bug tracking
Custom metrics and alerts
Email and Slack notifications
Memory and CPU profiling
Distributed tracing (Enterprise)
MCP-compatible AI assistant integration
On-premise deployment options

Pros

Over 600M downloads with proven track record
Open-source runtime remains free
Simple setup with npm install
Comprehensive monitoring without SSH access
AI assistant integration for intelligent insights
Flexible deployment (cloud or on-premise)
12+ years of active development

Cons

PM2 Plus has no free tier (starts at $39/month)
Exceeding process limits results in random process ignoring
Enterprise features require custom contact
Learning curve for advanced features like custom actions

Use this if

You need production-grade Node.js process management with real-time monitoring, want to avoid SSH access to servers, require clustering and load balancing, or need AI-assisted infrastructure insights.

Skip this if

You're running non-Node.js applications, prefer fully managed serverless platforms, or don't need monitoring features beyond basic process management.

Best for

Node.js production deploymentsApplication monitoring and error trackingCluster management and load balancingReal-time performance analyticsEnterprise-scale infrastructureTeams needing zero-downtime reloads

Alternatives

ForeverStrongLoop Process ManagerSystemdDocker with orchestrationKubernetes

Compare PM2 alternatives

More Devtool

Compare all

LinearFeatured

Issue tracking built for speed, with a keyboard-first interface.

PocketBaseFeatured

Open-source backend in a single file: database, auth, file storage, and admin UI.

Mirrors

Regression testing platform that replays real agent sessions to catch mistakes before production.

Social Fetch

A unified REST API that returns live, structured data (profiles, posts, transcripts, metrics) from 23 social and web platforms.