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OSSEC alternatives: 4 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll intrusion detection and network security monitoring

Top picks

  • CrowdStrike Falcon logo

    Best overall

    CrowdStrike Falcon

    Starting price: $59.99 per device/year (Falcon Go, billed annually)

  • Security Onion logo

    Best free option

    Security Onion

    Free plan + paid

  • Wazuh logo

    Best open source

    Wazuh

    Cloud starting price: $571/month (up to 100 agents)

Common reasons people leave OSSEC: no web dashboard in the free version; command line and config files only, and basic ruleset unless you register for OSSEC+ or pay for Atomic OSSEC. We ranked 4 alternatives by how directly each one replaces OSSEC, then by reviews, real visits and how recently each app's facts were checked against its own website. CrowdStrike Falcon currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1CrowdStrike Falcon logoCrowdStrike FalconPaid$59.99 per device/year (Falcon Go, billed annually)NoWeb, Windows, macOS +17 of 766.2
2Security Onion logoSecurity OnionFree plan + paid—NoLinux, Self-hosted4 of 464.8
3Suricata logoSuricataOpen source—NoLinux, macOS, Windows +15 of 561.8
4Wazuh logoWazuhOpen source$571/month (up to 100 agents)YesWeb, Linux, Windows +24 of 456.8
  1. CrowdStrike Falcon logo

    1. CrowdStrike FalconTop pick

    Best for: Businesses of any size that want a top-tier EDR, from self-serve bundles to managed detection

    PaidWeb, Windows, macOS, Linux

    66.2

    score / 100

    Why switch from OSSEC

    Commercial EDR with managed detection, for teams that want less to run themselves.

    Pros

    • Self-serve bundles with published per-device prices
    • Single lightweight sensor for Windows, macOS and Linux
    • Managed detection and response available for teams without a SOC
    • 15-day free trial without a credit card

    Cons

    • Costs climb quickly as you add modules beyond the bundles
    • Falcon Go is capped at 100 devices
    • A faulty update in July 2024 caused a worldwide Windows outage
    Visit CrowdStrike Falcon Details and reviews
    How this score is calculated
    Editorial fit ×0.341
    Reviews ×0.363
    Clicks (90 days) ×0.15100
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is CrowdStrike Falcon a good OSSEC alternative?

    Verified facts

    7 of 7 verified
    Starting price
    $59.99 per device/year (Falcon Go, billed annually)
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Monthly billing
    From $7.99 per device/month (Falcon Go)
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Free trial
    15 days, no card
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Operating systems
    Windows, macOS, Linux
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Falcon Go device limit
    100 devices
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Falcon Pro plan
    $99.99 per device/year
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
    Falcon Enterprise plan
    $184.99 per device/year
    Checked Nov 8, 2026crowdstrike.com(opens source in a new tab)
  2. Security Onion logo

    2. Security Onion

    Best for: Security teams that want IDS alerts, packet capture and hunting tools in one free platform.

    Free plan + paidSelf-hostableLinux, Self-hosted

    64.8

    score / 100

    Why switch from OSSEC

    Free platform combining network and host monitoring with dashboards and case management.

    Pros

    • Bundles Suricata, Zeek, packet capture and Elastic in one install
    • Its own hunting, case and dashboard interfaces
    • Free core platform with source on GitHub

    Cons

    • Needs substantial RAM and disk
    • Complex to run compared with a single IDS
    • Some features reserved for the paid Pro edition
    Visit Security Onion Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Security Onion a good OSSEC alternative?

    Verified facts

    4 of 4 verified
    Price
    Free
    Checked Nov 8, 2026securityonion.net(opens source in a new tab)
    Detection engines
    Suricata and Zeek
    Checked Nov 8, 2026securityonion.net(opens source in a new tab)
    Paid edition
    Security Onion Pro
    Checked Nov 8, 2026securityonion.net(opens source in a new tab)
    Started
    2008
    Checked Nov 8, 2026securityonion.net(opens source in a new tab)
  3. Suricata logo

    3. Suricata

    Best for: Teams who want a free, multithreaded IDS/IPS with detailed JSON logs for their SIEM.

    Open sourceLinux, macOS, Windows, Self-hosted

    61.8

    score / 100

    Why switch from OSSEC

    Adds network-level intrusion detection where OSSEC only watches hosts.

    Pros

    • Multithreaded engine that scales across CPU cores
    • Compatible with most Snort-style rulesets
    • EVE JSON logging integrates easily with SIEMs
    • Fully free under the GPL, run by a non-profit

    Cons

    • No built-in dashboard; alerts need a separate tool to review
    • Tuning rules and performance on busy networks takes expertise
    • Commercial rulesets cost extra
    Visit Suricata Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Suricata a good OSSEC alternative?

    Verified facts

    5 of 5 verified
    License
    GPL-2.0
    Checked Nov 1, 2026github.com(opens source in a new tab)
    IDS / IPS
    Yes
    Checked Nov 8, 2026suricata.io(opens source in a new tab)
    Log format
    EVE JSON
    Checked Nov 8, 2026suricata.io(opens source in a new tab)
    Platforms
    Linux, Mac, FreeBSD, Unix, Windows
    Checked Nov 8, 2026suricata.io(opens source in a new tab)
    Owner
    OISF (non-profit)
    Checked Nov 8, 2026suricata.io(opens source in a new tab)
  4. Wazuh logo

    4. Wazuh

    Best for: Security teams wanting a free, self-hosted SIEM and endpoint monitoring platform.

    Open sourceSelf-hostableWeb, Linux, Windows, macOS, Self-hosted

    56.8

    score / 100

    Why switch from OSSEC

    Fork of OSSEC with a web dashboard, larger ruleset and active development, still free.

    Pros

    • SIEM, endpoint monitoring, vulnerability detection and compliance in one platform
    • No licence cost when self-hosted
    • Agents for servers, desktops and cloud workloads
    • Optional managed cloud with a free trial

    Cons

    • Self-hosting the server, indexer and dashboard takes real setup and tuning
    • Managed cloud plans start at several hundred dollars a month
    • Default rules can be noisy until tuned
    Visit Wazuh Details and reviews
    How this score is calculated
    Editorial fit ×0.360
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Wazuh a good OSSEC alternative?

    Verified facts

    4 of 4 verified
    Open source
    Yes
    Checked Nov 8, 2026wazuh.com(opens source in a new tab)
    License cost
    None
    Checked Nov 8, 2026wazuh.com(opens source in a new tab)
    Cloud free trial
    14 days
    Checked Nov 8, 2026wazuh.com(opens source in a new tab)
    Cloud starting price
    $571/month (up to 100 agents)
    Checked Nov 8, 2026wazuh.com(opens source in a new tab)

The best OSSEC alternative for…

The highest-ranked app in this list for each need.

CrowdStrike Falcon logo

Best OSSEC alternative for most people

CrowdStrike Falcon

Commercial EDR with managed detection, for teams that want less to run themselves.

Suricata logo

Best OSSEC alternative for a free option

Suricata

Adds network-level intrusion detection where OSSEC only watches hosts.

Security Onion logo

Best OSSEC alternative for a free plan you can upgrade

Security Onion

Free platform combining network and host monitoring with dashboards and case management.

Wazuh logo

Best OSSEC alternative for open source

Wazuh

Fork of OSSEC with a web dashboard, larger ruleset and active development, still free.

Security Onion logo

Best OSSEC alternative for self-hosting

Security Onion

Free platform combining network and host monitoring with dashboards and case management.

CrowdStrike Falcon logo

Best OSSEC alternative for Mac

CrowdStrike Falcon

Commercial EDR with managed detection, for teams that want less to run themselves.

CrowdStrike Falcon logo

Best OSSEC alternative for Windows

CrowdStrike Falcon

Commercial EDR with managed detection, for teams that want less to run themselves.

CrowdStrike Falcon logo

Best OSSEC alternative for Linux

CrowdStrike Falcon

Commercial EDR with managed detection, for teams that want less to run themselves.

CrowdStrike Falcon logo

Best OSSEC alternative for working in the browser

CrowdStrike Falcon

Commercial EDR with managed detection, for teams that want less to run themselves.

OSSEC alternatives: common questions

What is the best alternative to OSSEC?

CrowdStrike Falcon ranks first right now. Commercial EDR with managed detection, for teams that want less to run themselves. Security Onion and Suricata follow it in our ranking.

OSSEC vs CrowdStrike Falcon: what's the difference?

OSSEC is free and open source; CrowdStrike Falcon is a paid product. Only CrowdStrike Falcon runs on Web.

Is OSSEC free?

OSSEC is free and open source. Price: Free. Checked on OSSEC's own site, November 2026.

How much do OSSEC alternatives cost?

Verified prices for the top-ranked OSSEC alternatives: CrowdStrike Falcon, $59.99 per device/year (Falcon Go, billed annually); Wazuh, $571/month (up to 100 agents). Each price was checked on the app's own site; see each card below for the date and source.

Is there a free alternative to OSSEC?

Yes. Security Onion (free plan + paid), Suricata (open source) and Wazuh (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to OSSEC?

Yes: Wazuh. Wazuh can also be self-hosted.

Which OSSEC alternatives work on Linux?

CrowdStrike Falcon, Security Onion, Suricata and Wazuh run on Linux.

Why do people switch from OSSEC?

The complaints we hear most: no web dashboard in the free version; command line and config files only; basic ruleset unless you register for OSSEC+ or pay for Atomic OSSEC; community support only for the free edition.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces OSSEC, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.