# ModbusPal

ModbusPal is an Industrial Control System Security product. It runs on-premises. Pricing is free.

Java MODBUS simulator with scriptable functions and dynamic resource creation.

## What is ModbusPal?

ModbusPal is a MODBUS slave simulator written in Java that offers an easy-to-use interface to reproduce complex and realistic MODBUS environments. It supports TCP/IP natively and serial communication with the RxTx library. Users can write external scripts for custom functions and utilize the 'Learn' mode to dynamically create resources as it receives MODBUS requests. ModbusPal is free and open source under the GPL license.

## Where it fits in your security program (NIST CSF 2.0)

- [Identify](https://cybersectools.com/guides/building-identify-program-small-team): helps you know your assets and your risks.

## Quick facts

- Category: [Cyber-Physical Security](https://cybersectools.com/categories/ot-security) · [Industrial Control System Security](https://cybersectools.com/categories/ics-security)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market
- Pricing model: Free
- Features: 10 listed
- Integrations: 2 listed
- Website: modbuspal.sourceforge.net

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best OT Security Solutions for Business](https://cybersectools.com/shortlists/best-ot-security-solutions).

## ModbusPal FAQ

### What is ModbusPal?

ModbusPal is a product in the Industrial Control System Security category.

### What is the pricing for ModbusPal?

ModbusPal is free. Download and setup instructions are at https://modbuspal.sourceforge.net/.

### What are alternatives to ModbusPal?

Alternatives to ModbusPal listed on CybersecTools:

1. [Darktrace OT](https://cybersectools.com/tools/darktrace-ot) - AI-based threat detection & risk mgmt for OT/IT industrial environments (Commercial)
2. [Nozomi Networks Nozomi Guardian](https://cybersectools.com/tools/nozomi-networks-nozomi-guardian) - Passive network monitoring for OT/IoT asset visibility and threat detection (Commercial)
3. [Gambit KnightGuard for OT & Critical Infra](https://cybersectools.com/tools/gambit-knightguard-for-ot-and-critical-infra) - OT & critical infrastructure protection platform for threat-informed defense (Commercial)
4. [iOT365 Cybersecurity Platform](https://cybersectools.com/tools/iot365-cybersecurity-platform) - AI-powered OT/IoT cybersecurity platform for critical infrastructure (Commercial)
5. [iolite OT Cybersecurity](https://cybersectools.com/tools/iolite-ot-cybersecurity) - OT cybersecurity platform for monitoring, detecting, and responding to threats (Commercial)

Compare all ModbusPal alternatives at [https://cybersectools.com/alternatives/modbuspal](https://cybersectools.com/alternatives/modbuspal)

### What deployment and organization size does ModbusPal fit?

ModbusPal is available as on-premises software. It is listed for startups, small businesses and mid-market companies. It is free.

## Compare ModbusPal with similar solutions

- [ModbusPal vs Darktrace OT](https://cybersectools.com/compare/darktrace-ot-vs-modbuspal)
- [ModbusPal vs Nozomi Networks Nozomi Guardian](https://cybersectools.com/compare/modbuspal-vs-nozomi-networks-nozomi-guardian)
- [ModbusPal vs Gambit KnightGuard for OT & Critical Infra](https://cybersectools.com/compare/gambit-knightguard-for-ot-and-critical-infra-vs-modbuspal)

All alternatives to ModbusPal: [/alternatives/modbuspal](https://cybersectools.com/alternatives/modbuspal)

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Source: https://cybersectools.com/tools/modbuspal

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL).

More on ModbusPal: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md