ntopng
ntopng: A self-hosted choice for packet capture, flow collection, and Layer 7 traffic analysis. Ranked #10 of 54 in Network Monitoring by our editors (8.4/10); pricing: Free plan; best for traffic analysis and packet-level monitoring.
At a glance
- Editor score8.4 / 10
- PricingFree plan
- Best forTraffic analysis and packet-level monitoring
- Free planYes
- Paid fromFree
- Synthetic checksYes
- Facts checked23 Sep 2026
Where it wins
- Packet capture, NetFlow, sFlow, and IPFIX flow collection
- Layer 7 application detection with real-time and historical analysis
- Active checks, SNMP monitoring, discovery, alerts, and REST API access
Where it doesn't
- Self-hosted deployment adds infrastructure and administration work
- Its focus is narrower than full infrastructure monitoring suites
- Advanced capabilities are split across Community, Pro, and Enterprise tiers
Our verdict on ntopng
ntopng is a self-hosted, web-based network monitoring application for network administrators, security teams, and service providers. It combines passive packet capture with NetFlow, sFlow, and IPFIX collection, then analyzes application protocols, traffic behavior, performance metrics, and cybersecurity indicators. Community is open source and includes real-time visibility, top talkers, Layer 7 application detection, alerts and notifications, active monitoring, and network discovery. The product fits teams that need detailed traffic understanding rather than only availability checks or broad infrastructure dashboards.
Its strongest area is traffic analysis. ntopng can provide real-time and historical views, behavioral checks, network and topology discovery, and active checks covering ICMP, HTTP/HTTPS, throughput, and Speedtest. SNMP infrastructure monitoring broadens its reach beyond packet data, while integrations with nProbe, nProbe Cento, Suricata, syslog, ClickHouse, Elasticsearch, LDAP, and external notification endpoints support different monitoring environments. The RESTful API also gives teams a way to connect its data and controls with other systems. These capabilities make it a good fit for investigating application behavior, traffic patterns, and network relationships.
The plan structure determines how far the product extends beyond core visibility. Pro adds LDAP authentication, extended behavioral checks and alerts, and network matrix timeseries. Enterprise M/L/XL/XXL adds historical data and reports, extended SNMP support, NetFlow/sFlow exporter statistics, and infrastructure monitoring. The trade-off is a self-hosted operating model and a product focus that remains more specialized than a full infrastructure suite. Choose ntopng when packet-level visibility and flow analysis are central; choose an alternative when you need a broader, less specialized platform or prefer a hosted deployment.
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ntopng pricing
All 2 ntopng plans and prices →
ntopng fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Synthetic checks | Yes |
| Device limit | Not verified |
| Traffic monitoring | Yes |
| Topology maps | Yes |
| Alert channels | |
| Deployment | Self_hosted |
| Deployment | Self-hosted |
| Platforms | Web, Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 7 integrations: nProbe, nProbe Cento, NetFlow, sFlow, Suricata, ElasticSearch … |
| Pricing | Free plan (source) |
| Website | ntop.org |
| Facts checked | 23 Sep 2026 |
ntopng integrations
ntopng lists 7 integrations on its own site.
- nProbe
- nProbe Cento
- NetFlow
- sFlow
- Suricata
- ElasticSearch
- ClickHouse
Alternatives to ntopng
- ZabbixBroad infrastructure monitoring with a free self-hosted edition and paid cloud options.9.4
- CheckmkA broad hybrid monitoring platform with a capable free edition and costly paid entry.9.3
- ManageEngine OpManagerBroad monitoring, mapping, traffic analysis, automation, and distributed coverage across four editions.9.1
Also Ranked In
ntopng is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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