Head-to-head · Network Protocol Analyzers
Zui vs NETCAP
Zui leads on 0 checks, NETCAP on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreZui · 7.8/10
- Free planboth
- Free trialonly NETCAP
- Most featuresNETCAP · 4 of 5
Zui scores higher on our rubric for network protocol analyzers: 7.8 against 7.4 out of 10; our editors rank them #14 and #18.
On capture sources, NETCAP gives you Both where Zui offers Local.
Zui is the better fit for PCAP investigations with Zeek and Suricata. NETCAP is the better fit for distributed analysis with reporting and AI assistance.
- Zui fits best
PCAP investigations with Zeek and Suricata
- NETCAP fits best
Distributed analysis with reporting and AI assistance
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Side by side
| Feature | Zui 7.8/10 Visit ↗ | NETCAP 7.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.8 | 7.4 |
| Ranking | #14 in Network Protocol Analyzers | #18 in Network Protocol Analyzers |
| Best for | PCAP investigations with Zeek and Suricata | Distributed analysis with reporting and AI assistance |
| Pricing model | Free | Free plan + paid |
| Starting price | Free plan | — |
| Free plan | ✓ | ✓ |
| Free trial | — | 14 days |
| Deployment | Desktop, Self-hosted | Desktop, Self-hosted |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux, Web |
| Support | Community, Docs | Email, Community, Docs |
| Integrations | 6 integrations | 8 integrations |
| Built for | Solo, Small business, Mid-market | Solo, Small business, Enterprise |
| Features Zui 3/5 · NETCAP 4/5 | ||
| PCAP support | ✓ | ✓ |
| Traffic decryption | Not checked yet | Not checked yet |
| CLI tools | ✓ | ✓ |
| Remote capture | Not checked yet | ✓ (best) |
| Flow analysis | ✓ | ✓ |
| Specs | ||
| Deployment | Both | Both |
| Capture sources | Local | Both |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Zui is a free desktop application for exploring, querying, and analyzing Zed lakes and packet-capture data. It is aimed at analysts investigating PCAP files with Zeek and Suricata, as well as teams working with local or remote Zed lake… Read the review → |
NETCAP is a network traffic analysis framework for security research, forensics, intrusion monitoring, and machine-learning workflows. Its open-source Core edition captures traffic from network interfaces, processes PCAP files, decodes… Read the review → |
Strengths and trade-offs
Zui — where it wins
- Correlates Zeek events with Suricata alerts
- Includes flow diagrams, pivots, queries, and PCAP export
- Runs on Windows, macOS, and Linux at no cost
Where it doesn't
- Network capture is limited to local data
- The release is described as legacy
- Remote Zed access is not remote interface capture
NETCAP — where it wins
- Live capture, PCAP processing, and distributed sensor collection
- Structured exports include Protocol Buffers, CSV, JSON, and Prometheus
- Pro adds graph, timeline, and AI-assisted anomaly analysis
Where it doesn't
- Pro costs €49 per month
- Core is centered on command-line workflows
- Advanced investigation features are tied to Pro
- Zui7.8/10 · Free plan
A free, cross-platform desktop analyzer for PCAP, Zeek, Suricata, and Zed lakes.
Visit ZuiFull verdict → - NETCAP7.4/10 · Free plan · 14-day trial
NETCAP combines live capture, PCAP analysis, distributed collection, and AI-assisted investigation.
Visit NETCAPFull verdict →
All network protocol analyzers comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update