# Gatewatcher NDR vs Justniffer: side-by-side comparison (2026)

[Gatewatcher NDR](https://cybersectools.com/tools/gatewatcher-ndr) is a commercial [network detection and response](https://cybersectools.com/categories/ndr) solution by [Gatewatcher](https://cybersectools.com/companies/gatewatcher). [Justniffer](https://cybersectools.com/tools/justniffer) is a free [network detection and response](https://cybersectools.com/categories/ndr) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Gatewatcher NDR | Justniffer |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Network Detection and Response | Network Detection and Response |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Gatewatcher | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Gatewatcher NDR | Justniffer |
|---|---|---|
| Network Visibility | Yes | – |
| Zero Day | Yes | – |
| Anomaly Detection | Yes | – |
| Network Discovery | – | Yes |
| Protocol Analysis | – | Yes |

### Core features

**Gatewatcher NDR**

10 features listed. Sign in on the page to see them.

**Justniffer**

No features listed.

### Integrations

**Gatewatcher NDR**

5 integrations listed. Sign in on the page to see them.

**Justniffer**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Gatewatcher NDR](https://cybersectools.com/tools/gatewatcher-ndr) fits if you need both cloud and on-premises options.
- [Justniffer](https://cybersectools.com/tools/justniffer) fits if you need to run it on your own servers, you are a startup and you need a free product.

## Gatewatcher NDR vs Justniffer FAQ

Common questions when comparing Gatewatcher NDR vs Justniffer for network detection and response.

### What is the difference between Gatewatcher NDR and Justniffer?

**Gatewatcher NDR**: Network Detection and Response platform for threat detection and investigation. Built by Gatewatcher.

**Justniffer**: A network protocol analyzer for capturing and analyzing network traffic with a focus on TCP/IP flow reconstruction and response time tracking.

The table above shows where their features, integrations, deployment and company size fit differ.

### Is Gatewatcher NDR a good alternative to Justniffer?

Often, yes. Gatewatcher NDR and Justniffer are both Network Detection and Response products. Key differences: Gatewatcher NDR is Commercial while Justniffer is Free. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Gatewatcher NDR vs Trend Micro Network Detection and Response](https://cybersectools.com/compare/gatewatcher-ndr-vs-trend-micro-network-detection-and-response)
- [Gatewatcher NDR vs ThreatBook Threat Detection Platform (TDP)](https://cybersectools.com/compare/gatewatcher-ndr-vs-threatbook-threat-detection-platform-tdp)
- [Gatewatcher NDR vs ExtraHop RevealX NDR](https://cybersectools.com/compare/extrahop-revealx-ndr-vs-gatewatcher-ndr)
- [Justniffer vs Trend Micro Network Detection and Response](https://cybersectools.com/compare/justniffer-vs-trend-micro-network-detection-and-response)
- [Justniffer vs ThreatBook Threat Detection Platform (TDP)](https://cybersectools.com/compare/justniffer-vs-threatbook-threat-detection-platform-tdp)
- [Justniffer vs ExtraHop RevealX NDR](https://cybersectools.com/compare/extrahop-revealx-ndr-vs-justniffer)

## Alternatives to each

- [See all Gatewatcher NDR alternatives](https://cybersectools.com/alternatives/gatewatcher-ndr)
- [See all Justniffer alternatives](https://cybersectools.com/alternatives/justniffer)

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Source: https://cybersectools.com/compare/gatewatcher-ndr-vs-justniffer

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More on Gatewatcher NDR and Justniffer: 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=compare-md