Netflow Analyzer Open Source ⭐ Safe

| Feature | NfSen | ElastiFlow | ntopng | | :--- | :--- | :--- | :--- | | | Medium | Hard | Easy | | UI Modernity | Dated | Modern | Modern | | Real-time View | Good | Excellent | Excellent | | Historical Analysis | Excellent | Excellent | Limited (Free ver.) | | Resource Usage | Low | High | Medium |

| Feature | NfSen | ntopng | ELK Stack | |---------|-------|--------|-----------| | License | GPLv2 | GPLv3 (CE) | Apache 2.0 | | Flow/s (max typical) | ~50k | 1k (CE) | 100k+ (with tuning) | | Real-time dashboard | No | Yes | Yes (via Kibana) | | Historical query speed | Fast (binary) | Slow (RRD) | Fast (indexed) | | Alerting | Basic (email) | Advanced (scriptable) | Via ElastAlert | | Setup difficulty | Easy | Moderate | Hard | netflow analyzer open source