# Top Free Intrusion Detection and Prevention Systems (IDPS) Check out our list of free Intrusion Detection and Prevention Systems (IDPS). Products featured on this list are the ones that offer a free trial version. As with most free versions, there are limitations, typically time or features. If you'd like to see more products and to evaluate additional feature options, compare all [Intrusion Detection and Prevention Systems (IDPS)](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps) to ensure you get the right product. ## View Free Intrusion Detection and Prevention Systems (IDPS) G2 takes pride in showing unbiased reviews on user satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our [scoring methodologies](https://research.g2.com/g2-scoring-methodologies). **11** Intrusion Detection and Prevention Systems (IDPS) Products Available View all [Intrusion Detection and Prevention Systems (IDPS)](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps) View all [Intrusion Detection and Prevention Systems (IDPS)](https://www.g2.com/categories/intrusion-detection-and-prevention-systems-idps) ### [CrowdSec](https://www.g2.com/products/crowdsec/reviews) [By CrowdSec](https://www.g2.com/sellers/crowdsec) [ (88)4.7 out of 5 ](https://www.g2.com/products/crowdsec/reviews#reviews "Read CrowdSec Reviews") Product Description CrowdSec is an open-source security stack that detects aggressive behaviors and prevents them from accessing your systems. Its user-friendly design and ease of integration into your current security i **Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 69% Small-Business, 20% Mid-Market HH It is easy to use and there are already many extensions for the most popular software products. Crowdsec is at home on all the latest operating...[Read review](https://www.g2.com/products/crowdsec/reviews/crowdsec-review-8185369) ![AJ T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "AJ T.") AT Relatively easy to set up on individual servers and provides excellent front-line protection for web applications, including WordPress. It also...[Read review](https://www.g2.com/products/crowdsec/reviews/crowdsec-review-8185523) Year Founded 2020 HQ Location Paris, FR Company Website https://crowdsec.net Twitter @Crowd\_Security LinkedIn® Page https://www.linkedin.com/company/crowdsec/?originalSubdomain=fr ### [TrendAI Vision One - Cloud Security](https://www.g2.com/products/trendai-vision-one-cloud-security/reviews) [By TrendAI](https://www.g2.com/sellers/trendai) [ (187)4.5 out of 5 ](https://www.g2.com/products/trendai-vision-one-cloud-security/reviews#reviews "Read TrendAI Vision One - Cloud Security Reviews") Product Description In today's complex digital landscape, securing your cloud environment is paramount. The management and security of your hybrid and multi-cloud setup pose increasing challenges. TrendAI's Cloud Securit **Users:** Cyber Security Associate, Cyber Security Engineer · **Industries:** Computer & Network Security, Information Technology and Services · **Market Segment:** 43% Mid-Market, 34% Enterprise ![Sumit K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Sumit K.") SK Trend Micro Cloud One (which includes Deep Security) offers a unified security solution that can manage and protect workloads across physical,...[Read review](https://www.g2.com/products/trendai-vision-one-cloud-security/reviews/trendai-vision-one-cloud-security-review-9538354) ![Lemmuel A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Lemmuel A.") LA I like trend micro hybrid cloud security when they can protect you on a modern threats even you are using hybrid setup[Read review](https://www.g2.com/products/trendai-vision-one-cloud-security/reviews/trendai-vision-one-cloud-security-review-9577833) Year Founded 1988 HQ Location Tokyo Company Website https://www.trendmicro.com/ LinkedIn® Page https://www.linkedin.com/company/4312/ Ownership OTCMKTS:TMICY [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) ### [Blumira Automated Detection & Response](https://www.g2.com/products/blumira-automated-detection-response/reviews) [By Blumira](https://www.g2.com/sellers/blumira) [ (124)4.6 out of 5 ](https://www.g2.com/products/blumira-automated-detection-response/reviews#reviews "Read Blumira Automated Detection & Response Reviews") Product Description Blumira is an integrated security operations platform built for growing teams and the partners supporting them to gain complete visibility into their environment, identify and address risk faster, and **Users:** IT Manager · **Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 51% Mid-Market, 36% Small-Business LG Setting up a free account only took a few minutes and the basic detections are selected by defualt. There wasn't much that I had to do to get up...[Read review](https://www.g2.com/products/blumira-automated-detection-response/reviews/blumira-automated-detection-response-review-10046167) ![Verified User in Utilities](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Utilities") AU Setup was simple. With the free o365 monitoring tools, we were up and running monitoring risky sign ins within minutes. Deploying agents was easy...[Read review](https://www.g2.com/products/blumira-automated-detection-response/reviews/blumira-automated-detection-response-review-10563619) Year Founded 2018 HQ Location Ann Arbor, Michigan Company Website https://www.blumira.com Twitter @blumira LinkedIn® Page https://www.linkedin.com/company/blumira/ ### [ExtraHop](https://www.g2.com/products/extrahop/reviews) [By ExtraHop Networks](https://www.g2.com/sellers/extrahop-networks) [ (68)4.6 out of 5 ](https://www.g2.com/products/extrahop/reviews#reviews "Read ExtraHop Reviews") Product Description ExtraHop is the cybersecurity partner enterprises trust to reveal cyber risk and build business resilience. The ExtraHop RevealX platform for network detection and response and network performance man **Industries:** Hospital & Health Care, Transportation/Trucking/Railroad · **Market Segment:** 69% Enterprise, 26% Mid-Market ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications") UT The capability of deep dive into any OSI Layer's protocol to match your pre-configured triggers for abnormal network pattern and potential issue...[Read review](https://www.g2.com/products/extrahop/reviews/extrahop-review-664650) ![Verified User in Telecommunications](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Telecommunications") AT EAsy to use, intuitive platform, drill downs[Read review](https://www.g2.com/products/extrahop/reviews/extrahop-review-4581251) Year Founded 2007 HQ Location Seattle, Washington Company Website https://www.extrahop.com/ Twitter @ExtraHop LinkedIn® Page https://www.linkedin.com/company/extrahop-networks/ ### [threatER](https://www.g2.com/products/threater/reviews) [By threatER](https://www.g2.com/sellers/threater) [ (37)4.8 out of 5 ](https://www.g2.com/products/threater/reviews#reviews "Read threatER Reviews") Product Description threatER is the leading preemptive cybersecurity platform for building and maintaining trust at scale. Our SaaS solution continuously learns from all available data, allowing you to gain better insigh **Market Segment:** 59% Mid-Market, 30% Enterprise AK 1.The interface is very user friendly. 2. Easy to whitelist / blacklist IPs and domains. 3. Great responsive support. 4. Great logging. 5....[Read review](https://www.g2.com/products/threater/reviews/threater-review-6530561) ![Michael M.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Michael M.") MM While your SIEM may alert you of threats, Threatblockr allows you to retrieve threat intel from TAXII/STIX feeds and blocks it. Most firewalls do...[Read review](https://www.g2.com/products/threater/reviews/threater-review-7088101) HQ Location Tysons, Virginia Company Website https://www.threater.com/ LinkedIn® Page https://www.linkedin.com/company/threater/ ### [B1 Platform by CloudCover](https://www.g2.com/products/b1-platform-by-cloudcover/reviews) [By CloudCover, Inc.](https://www.g2.com/sellers/cloudcover-inc) [ (44)4.6 out of 5 ](https://www.g2.com/products/b1-platform-by-cloudcover/reviews#reviews "Read B1 Platform by CloudCover Reviews") Product Description A network security platform, years in the making, leveraging mathematics to continuously learn, predict, and defend against attacks. **Industries:** Information Technology and Services, Computer & Network Security · **Market Segment:** 39% Mid-Market, 39% Small-Business ![Verified User in Education Management](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Education Management") UE I personally adore the easy layout and how user-friendly the whole platform is. It is a reliable network security system for your data as an...[Read review](https://www.g2.com/products/b1-platform-by-cloudcover/reviews/b1-platform-by-cloudcover-review-9843750) ![NAYAN K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "NAYAN K.") NK It's reliable and the security that we need these days are getting challenging day by day. So platform like B1 assist a lot in security space.[Read review](https://www.g2.com/products/b1-platform-by-cloudcover/reviews/b1-platform-by-cloudcover-review-9914937) Year Founded 2007 HQ Location Minneapolis, US Company Website https://cloudcover.cc/ LinkedIn® Page https://www.linkedin.com/company/1642753 ### [Darktrace / NETWORK](https://www.g2.com/products/darktrace-network/reviews) [By Darktrace](https://www.g2.com/sellers/darktrace) [ (47)4.5 out of 5 ](https://www.g2.com/products/darktrace-network/reviews#reviews "Read Darktrace / NETWORK Reviews") Product Description Darktrace / NETWORK™ is the industry’s most advanced Network Detection and Response (NDR) solution. It learns what normal behavior is for your entire modern network, using Self-Learning AI to detect a **Industries:** Financial Services, Information Technology and Services · **Market Segment:** 60% Mid-Market, 32% Enterprise ![John S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "John S.") JS Darktrace has many advanced features and reporting capabilities. It captures all packets that flow on the network, and uses that data to create a...[Read review](https://www.g2.com/products/darktrace-network/reviews/darktrace-network-review-773656) LM Very easy to implement, despite the power and complexity of the solution once it is up and running. Outstanding user interface, it needs a bit of...[Read review](https://www.g2.com/products/darktrace-network/reviews/darktrace-network-review-9184462) Year Founded 2013 HQ Location Cambridgeshire, England Company Website https://www.darktrace.com Twitter @Darktrace LinkedIn® Page https://www.linkedin.com/company/5013440/ Ownership LON: DARK ### [Armor Agent](https://www.g2.com/products/armor-agent/reviews) [By Armor](https://www.g2.com/sellers/armor) [ (12)4.8 out of 5 ](https://www.g2.com/products/armor-agent/reviews#reviews "Read Armor Agent Reviews") Product Description Armor Agent protects Windows and Linux servers wherever they run, in public cloud, private cloud, or on-premises environments, with a single, lightweight agent that installs with one line of code. **Market Segment:** 83% Small-Business, 17% Mid-Market ![Bert L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Bert L.") BL The ability for the service to wrap over my current setup and keep my HIPAA compliant.[Read review](https://www.g2.com/products/armor-agent/reviews/armor-agent-review-4269233) DS We've been working with Armor for many years now and they've always acted as a true business partner, helping us ensure we can meeting our clients'...[Read review](https://www.g2.com/products/armor-agent/reviews/armor-agent-review-4417602) Year Founded 2009 HQ Location Plano, Texas Company Website https://www.armor.com Twitter @Armor LinkedIn® Page https://www.linkedin.com/company/333863/ ### [BhaiFi Networks](https://www.g2.com/products/bhaifi-networks/reviews) [By BhaiFi](https://www.g2.com/sellers/bhaifi) [ (22)4.2 out of 5 ](https://www.g2.com/products/bhaifi-networks/reviews#reviews "Read BhaiFi Networks Reviews") Product Description BhaiFi empowers businesses to forge meaningful connections with their customers through Guest WiFi. By harnessing AI technology, we make network security and compliance effortless, democratizing cyber **Market Segment:** 64% Small-Business, 23% Mid-Market AS At an affordable price point, It assists in the network's security against external intrusion. Even when usage is intense, it aids in providing...[Read review](https://www.g2.com/products/bhaifi-networks/reviews/bhaifi-networks-review-7423479) ![Harjeet S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Harjeet S.") HS Bhai fi software is the best software. It will lead the industry in the future. This software will protect you from unwanted viruses and DDOS...[Read review](https://www.g2.com/products/bhaifi-networks/reviews/bhaifi-networks-review-7607531) Year Founded 2017 HQ Location Ankit Verma Company Website https://bhaifi.ai/ Twitter @bhaifi LinkedIn® Page https://www.linkedin.com/company/bhaifi/ Ownership Ankit Verma Phone 8929306430 ### [DentiGrid](https://www.g2.com/products/dentigrid/reviews) [By DentiSystems](https://www.g2.com/sellers/dentisystems) [ 0 ratings ](https://www.g2.com/products/dentigrid/reviews#reviews "Read DentiGrid Reviews") Product Description DentiGrid is an enterprise-grade threat intelligence and attack visibility platform designed to help organizations see, understand, and respond to real cyber threats before damage occurs. Unlike tradi HQ Location 101 Kallange Ave, Singapore Company Website https://www.denti.systems LinkedIn® Page https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps Phone +8801308539526 ### [Syspeace](https://www.g2.com/products/syspeace/reviews) [By Syspeace](https://www.g2.com/sellers/syspeace) [ 0 ratings ](https://www.g2.com/products/syspeace/reviews#reviews "Read Syspeace Reviews") Product Description Syspeace is an intrusion detection and prevention system against brute force attacks on Microsoft Windows Servers. Syspeace is an intrusion protection software which most can afford regardless of busi Year Founded 2012 HQ Location Stockholm, SE Company Website https://syspeace.com/ Twitter @syspeace LinkedIn® Page https://www.linkedin.com/company/syspeace/?originalSubdomain=se [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source)