Argus
Argus: A cross-platform packet and flow forensics system for on-premises analysis. Ranked #16 of 25 in Network Traffic Analysis Software by our editors (7.0/10); pricing: Open source; best for cross-platform packet and flow forensics.
At a glance
- Editor score7.0 / 10
- PricingOpen source
- Best forCross-platform packet and flow forensics
- Paid fromFree
- Application visibilityYes
- Facts checked20 Sep 2026
Where it wins
- Correlates bidirectional flows and sessionizes packet data
- Captures from live interfaces and packet files
- Supports Windows, macOS, and Linux deployments
Where it doesn't
- On-premises deployment does not provide hosted delivery
- Its broad feature set may exceed simple monitoring needs
- Requires separate flow collection and analysis components
Our verdict on Argus
Argus is an open-source network audit system for security investigations, network operations, performance analysis, traffic baselining, and forensic analysis. It captures packets from live interfaces or packet files, then generates bidirectional network-flow records. The system is suited to teams that need packet and flow visibility across Windows, macOS, and Linux, from individual hosts and mirrored interfaces to distributed environments with multiple observation points.
The open-source pricing model keeps the product outside a tiered commercial-plan structure. The published product details show no device-based plan limits, while the feature set covers real-time flow monitoring, packet capture, filtering, aggregation, bandwidth analytics, and traffic auditing. Flow data collection and distribution are handled with radium. Protocol support includes Argus, NetFlow, IPFIX, J-Flow, Q-Flow, and K-Flow, giving the product a broad basis for collecting and analyzing network activity without separating core capabilities into paid tiers.
Argus is particularly focused on packet and flow forensics rather than lightweight dashboard monitoring. Its support for application visibility, conversation analysis, bandwidth monitoring, protocol identification, payload analysis, and sessionization provides depth for investigations and network-usage analysis. Deployment is on premises, so organizations seeking a hosted service should choose an alternative. Argus is a strong fit for teams that want open-source control and detailed traffic records across major desktop and server platforms; it is less suitable for buyers looking for a managed monitoring experience or a simple, narrowly scoped interface.
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Argus pricing
Argus fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Flow protocols | Argus, NetFlow, IPFIX, J-Flow, Q-Flow, K-Flow |
| Application visibility | Yes |
| Conversation analysis | Yes |
| Bandwidth monitoring | Yes |
| Deployment | On_premises |
| Monitored device limit | Not verified |
| Deployment | Self-hosted |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Open source |
| Website | openargus.org |
| Facts checked | 20 Sep 2026 |
Alternatives to Argus
- ManageEngine NetFlow AnalyzerA broad traffic-analysis suite with a free edition and paid tiers for growing networks.9.3
- ntopngA broad self-hosted traffic analysis suite with a capable free Community plan.9.2
- SolarWinds NetFlow Traffic AnalyzerA focused choice for multi-vendor flow analysis, drill-downs, and historical reporting.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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