Caligare Flow Inspector

7.7easy start · #2 of 23
in Network Traffic Analysis Software

Free to practise onyes
Free trialyes
Well documentedyes
Runs where you worknot on record

Runs on Linux, self-hosted, Web.

Caligare Flow Inspector is ranked #2 of 23 in network traffic analysis software on The Geeks Club. It runs on Linux, Self-hosted, Web. There is a free plan. A free trial is offered.

Caligare Flow Inspector plans and pricing

All plans

Caligare Flow Inspector Free Edition Free Non-commercial use · maximum 2 devices · 24-hour history · 250 flows/sec maximum caligare.com · 30 Sept 2026

Caligare Flow Inspector Enterprise edition Not published Unlimited monitored devices · commercial use caligare.com · 30 Sept 2026

Caligare Flow Inspector Professional edition Not published 1–9 monitored devices · commercial use caligare.com · 30 Sept 2026

Compared on network traffic analysis software

Free plan: Yes
Flow protocols: NetFlow 1, 5, 6, 7, 9
Application visibility: Yes
Conversation analysis: Yes
Bandwidth monitoring: Yes
Deployment: on_premises

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The record

Purpose: Caligare Flow Inspector monitors and analyzes NetFlow exports sent by existing routers, without requiring deployed probes.
Web interface: Its management interface is described as 100% web-based and configures collectors, network devices, application groups, and anomaly detection.
Analysis: The product provides real-time network analysis, user data tracking, and statistics for top hosts, protocols, applications, and conversations.
Threat visibility: Caligare says the analyzer can help identify suspicious activity, denial-of-service attacks, worm-infected stations, bottlenecks, and routing trouble.
Free edition features: The free edition lists NetFlow versions 1, 5, 6, 7, and 9, low-level traffic search, interface utilization, utilization maps, filtering, and forwarding.
Authentication: The free edition lists local, LDAP, or external user authentication and user and group management.
Paid edition additions: The maker says Professional and Enterprise add longer-term historical trends, network anomaly detection, unrestricted NetFlow parsing, and commercial use.
Trial: The download page says users can request a 30-day trial license key, which Caligare sends by email.
Linux requirements: The download page lists Debian, RedHat, Fedora, SuSE, and other Linux distribution packages, and says the latest version requires MySQL 5.1 or newer.
Cisco compatibility: Caligare says Flow Inspector met the requirements for inclusion in Cisco's Technology Developer Program and is distributed with a Cisco Compatible logo.
Support: The maker says one year of technical support for the free version can be purchased online.
Audience: Caligare describes the product editions for enterprise users with unlimited devices, businesses monitoring one to nine devices, and non-commercial users monitoring up to two devices.
Founded: 2004
Headquarters: Prague, Czech Republic
Price from: Free

Where it ranks on The Geeks Club

Best Network Traffic Analysis Software in 2026#2 of 23

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Sources

caligare.com/netflow/caligare_flow_inspector.php· checked 30 Sept 2026
caligare.com/netflow/free_netflow.php· checked 30 Sept 2026
caligare.com/netflow/download.php· checked 30 Sept 2026
caligare.com/ctdp/index.php· checked 30 Sept 2026
caligare.com/netflow/· checked 30 Sept 2026