Supervisor

Automatically restarts scripts on crash or file changes.

DecliningOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is Supervisor?

Supervisor is a tool that automatically restarts Node.js scripts when they crash or any `*.js` files are modified. This ensures continuous operation and immediate updates without manual intervention, making development more efficient.

Key differentiator

Supervisor stands out by providing a simple and effective way to automatically manage Node.js scripts without the need for complex configurations or additional tools.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Automatically restarts scripts on crashmedium

Monitors and restarts scripts when `*.js` files are modifiedmedium

Simplifies development workflow by reducing manual interventionmedium

↓ Weaknesses

Limited language support beyond JavaScripthigh

Supervisor is primarily designed for Node.js scripts and lacks native support for other languages, limiting its utility in polyglot environments.

Performance overhead due to file monitoringmedium

Continuous monitoring of `*.js` files can introduce performance overhead, especially in large projects with many files, potentially slowing down the development workflow.

Configuration complexity for advanced use caseshigh

Setting up Supervisor for complex project structures or custom behaviors requires a deep understanding of its configuration options and can be error-prone.

Lack of comprehensive documentationmedium

The official documentation is limited, making it difficult to troubleshoot issues or understand advanced features without referring to community forums or trial-and-error approaches.

Fit analysis

Who is it for?

✓ Best for

Developers working on Node.js projects who require continuous script operation and automatic updates

Teams that want to streamline their development workflow by automating script management tasks

✕ Not a fit for

Projects requiring real-time monitoring of non-JavaScript files, as Supervisor only monitors `*.js` files

Environments where manual control over script restarts is preferred or required for security reasons

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Alternatives

Works well with

Next step

Get Started with Supervisor

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →