Corelight Zeek is a free network detection and response solution by Corelight. Innspark Flowgen is a commercial network detection and response solution by Innspark. Features, integrations, deployment and the company behind each one, side by side.
Open source network security monitoring tool for traffic analysis
Network probe providing traffic visibility and analysis via NetFlow and IPFIX protocols
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Based on what each listing shows: deployment, company size, price and open source.
Corelight Zeek fits if you need both cloud and on-premises options and you need a free product.
Innspark Flowgen fits if you need to run it on your own servers.
Common questions when comparing Corelight Zeek vs Innspark Flowgen for network detection and response.
Corelight Zeek: Open source network security monitoring tool for traffic analysis. Built by Corelight.
Innspark Flowgen: Network probe providing traffic visibility and analysis via NetFlow and IPFIX protocols. Built by Innspark.
The table above shows where their features, integrations, deployment and company size fit differ.
Corelight Zeek is made by Corelight. Innspark Flowgen is made by Innspark. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Corelight Zeek and Innspark Flowgen are both Network Detection and Response products, and both cover Network Monitoring. Key differences: Corelight Zeek is Free while Innspark Flowgen is Commercial. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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