GREYCORTEX Mendel vs Joy: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
GREYCORTEX Mendel is a commercial network detection and response tool by GREYCORTEX. Joy is a free network detection and response tool. Compare features, ratings, integrations, and community reviews side by side to find the best network detection and response fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictBased on our analysis of core features, here is our conclusion:
Security teams with network visibility gaps who lack budget for commercial NDR will find Joy's free flow analysis genuinely useful for baseline threat hunting and anomaly detection. The 1,356 GitHub stars and active open-source community signal real production use, particularly among smaller shops and resource-constrained security groups. Skip this if you need managed threat hunting, automated response playbooks, or vendor support; Joy is a capture-and-analyze tool that demands internal expertise to operationalize effectively.
Data verified Sep 2026
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