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Head-to-head · Intrusion Detection and Prevention Software

Suricata vs SELKS

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Suricata #1 in Intrusion Detection and Prevention Software 9.3/10 Free plan Free plan✓ 3 of 4 features Visit Suricata
SELKS #8 in Intrusion Detection and Prevention Software 8.3/10 Free plan Free plan✓ 3 of 4 features Visit SELKS

Suricata leads on 0 checks, SELKS on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSuricata · 9.3/10
  • Free planboth

Suricata scores higher on our rubric for intrusion detection and prevention software: 9.3 against 8.3 out of 10; our editors rank them #1 and #8.

Suricata is the better fit for free open-source network IDS and IPS. SELKS is the better fit for open-source Suricata monitoring and hunting.

  • Suricata fits best

    Free open-source network IDS and IPS

  • SELKS fits best

    Open-source Suricata monitoring and hunting

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Suricata 9.3/10 Visit ↗ SELKS 8.3/10 Visit ↗
At a glance
Editor score 9.3 8.3
Ranking #1 in Intrusion Detection and Prevention Software #8 in Intrusion Detection and Prevention Software
Best for Free open-source network IDS and IPS Open-source Suricata monitoring and hunting
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted
Platforms Windows, macOS, Linux Web, Windows, Linux
Support Community, Docs Community, Docs
Integrations 7 integrations 7 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Suricata 3/4 · SELKS 3/4
Inline blocking ✓ ✓
Encrypted traffic inspection ✓ ✓
Cloud workload support Not checked yet Not checked yet
Threat intelligence ✓ ✓
Specs
Deployment model Software Software
Network scope Network Network
Supported platforms Network Not checked yet
Our review
Pros
  • Combines signature and anomaly detection with inline prevention
  • Supports protocol logging, PCAP analysis, Lua, and Eve JSON output
  • Integrates with SIEM, Elastic, Splunk, Logstash, Redis, and Netfilter
  • Combines Suricata IDS/IPS with threat hunting and alert analysis
  • Includes graphical ruleset and threat-intelligence management
  • Supports PCAP analysis and encrypted-traffic records with TLS and JA3/JA3S
Cons
  • Requires self-hosted network deployment and operational management
  • Does not decrypt encrypted traffic for TLS inspection
  • Custom detection and rule management may require specialist expertise
  • No planned future releases after January 1, 2025
  • Archived and superseded by Clear NDR - Community
  • Verified platform coverage is narrower than Suricata's
Our verdict

Suricata is a free, open-source network threat detection engine for home users, corporate organizations, government users, researchers, and developers. It covers network intrusion detection, inline network intrusion prevention, network…

Read the review →

SELKS is an open-source network intrusion detection and prevention, network security monitoring, and threat-hunting system built around Suricata. It is suited to home networks, researchers, educators, hobbyists, and small-to-medium…

Read the review →
  1. SuricataIntrusion Detection and Prevention Software 9.3Free plan
  2. SELKSIntrusion Detection and Prevention Software 8.3Free plan

Strengths and trade-offs

  • Suricata — where it wins

    • Combines signature and anomaly detection with inline prevention
    • Supports protocol logging, PCAP analysis, Lua, and Eve JSON output
    • Integrates with SIEM, Elastic, Splunk, Logstash, Redis, and Netfilter

    Where it doesn't

    • Requires self-hosted network deployment and operational management
    • Does not decrypt encrypted traffic for TLS inspection
    • Custom detection and rule management may require specialist expertise
  • SELKS — where it wins

    • Combines Suricata IDS/IPS with threat hunting and alert analysis
    • Includes graphical ruleset and threat-intelligence management
    • Supports PCAP analysis and encrypted-traffic records with TLS and JA3/JA3S

    Where it doesn't

    • No planned future releases after January 1, 2025
    • Archived and superseded by Clear NDR - Community
    • Verified platform coverage is narrower than Suricata's

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update