Free Netflow Software | Better

| Use Case | Recommended Software | |-----------------------------------------------|-------------------------------| | Small office (<500 Mbps, 30-day retention) | nfdump + NfSen | | Enterprise with ELK stack already deployed | Elastiflow + Kibana | | ISP or data center (high flows, custom SQL) | pmacct + ClickHouse + Grafana | | Raspberry Pi or low-power sensor | Softflowd (export) + remote collector | | Security hunting (long-term, queryable) | nfdump (with -M merge) |

Keep in mind that the specific features and capabilities of free NetFlow software can vary widely, so it's essential to evaluate each tool to determine which one best meets your needs. free netflow software

These are commercial products that offer a "free tier" with limitations (e.g., capped sensors, retention limits, or restricted features). free netflow software

Free NetFlow software has matured to the point where it is viable for production environments of all sizes. free netflow software