# Justniffer vs Vectra AI Detections: side-by-side comparison (2026)

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

## Side-by-side comparison

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

### Use cases and capabilities

| | Justniffer | Vectra AI Detections |
|---|---|---|
| Network Discovery | Yes | – |
| Protocol Analysis | Yes | – |
| Anomaly Detection | – | Yes |
| Azure | – | Yes |
| Lateral Movement | – | Yes |
| AWS | – | Yes |
| C2 | – | Yes |

### Core features

**Justniffer**

No features listed.

**Vectra AI Detections**

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

## Which one fits you

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

- [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.
- [Vectra AI Detections](https://cybersectools.com/tools/vectra-ai-detections) fits if you want a cloud product.

## Justniffer vs Vectra AI Detections FAQ

Common questions when comparing Justniffer vs Vectra AI Detections for network detection and response.

### What is the difference between Justniffer and Vectra AI Detections?

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

**Vectra AI Detections**: AI-driven threat detection platform identifying malicious behaviors across networks. Built by Vectra AI.

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

### Is Justniffer a good alternative to Vectra AI Detections?

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

## Related comparisons

- [Justniffer vs Vectra AI Network Coverage](https://cybersectools.com/compare/justniffer-vs-vectra-ai-network-coverage)
- [Justniffer vs ThreatBook Threat Detection Platform (TDP)](https://cybersectools.com/compare/justniffer-vs-threatbook-threat-detection-platform-tdp)
- [Justniffer vs Trend Micro Deep Discovery Inspector](https://cybersectools.com/compare/justniffer-vs-trend-micro-deep-discovery-inspector)
- [Vectra AI Detections vs Vectra AI Network Coverage](https://cybersectools.com/compare/vectra-ai-detections-vs-vectra-ai-network-coverage)
- [Vectra AI Detections vs ThreatBook Threat Detection Platform (TDP)](https://cybersectools.com/compare/threatbook-threat-detection-platform-tdp-vs-vectra-ai-detections)
- [Vectra AI Detections vs Trend Micro Deep Discovery Inspector](https://cybersectools.com/compare/trend-micro-deep-discovery-inspector-vs-vectra-ai-detections)

## Alternatives to each

- [See all Justniffer alternatives](https://cybersectools.com/alternatives/justniffer)
- [See all Vectra AI Detections alternatives](https://cybersectools.com/alternatives/vectra-ai-detections)

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Source: https://cybersectools.com/compare/justniffer-vs-vectra-ai-detections

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More on Justniffer and Vectra AI Detections: 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