Best Free Container Security Software
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Compare the Top Free Container Security Software as of December 2025
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What is Free Container Security Software?
Container security software is software designed to protect containerized applications and environments from security vulnerabilities, threats, and attacks. Containers, which are used to deploy and run applications in isolated environments, present unique security challenges due to their dynamic and ephemeral nature. Container security software helps secure containerized environments by providing capabilities such as vulnerability scanning, runtime protection, access control, and image security. These tools monitor container configurations and activity to detect anomalies, ensure compliance with security policies, and mitigate risks like container escapes or unauthorized access. By enhancing the security of containers and container orchestration platforms (like Kubernetes), these solutions enable organizations to securely deploy and manage applications in cloud-native and microservices environments. Compare and read user reviews of the best Free Container Security software currently available using the table below. This list is updated regularly.
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1
Kasm Workspaces
Kasm Technologies
Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm uses our high-performance streaming and secure isolation technology to provide web-native Desktop as a Service (DaaS), application streaming, and secure/private web browsing. Kasm is not just a service; it is a highly configurable platform with a robust developer API and devops-enabled workflows that can be customized for your use-case, at any scale. Workspaces can be deployed in the cloud (Public or Private), on-premise (Including Air-Gapped Networks or your Homelab), or in a hybrid configuration.Starting Price: $0 Free Community Edition -
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Fidelis Halo
Fidelis Security
Fidelis Halo is a unified, SaaS-based cloud security platform that automates cloud computing security controls and compliance across servers, containers, and IaaS in any public, private, hybrid, and multi-cloud environment. With over 20,000 pre-configured rules and more than 150 policy templates that cover standards such as PCI, CIS, HIPAA, SOC, and DISA STIGs for IaaS services, Halo’s extensive automation capabilities streamline and accelerate workflows between InfoSec and DevOps. The comprehensive, bi-directional Halo API, developer SDK, and toolkit automate your security and compliance controls into your DevOps toolchain to identify critical vulnerabilities so they can be remediated prior to production. The free edition of Halo Cloud Secure includes full access to the Halo Cloud Secure CSPM service for up to 10 cloud service accounts across any mix of AWS, Azure, and GCP, at no cost to you, ever. Sign up now and start your journey to fully automated cloud security!Starting Price: Free -
3
Telepresence
Ambassador Labs
Telepresence streamlines your local development process, enabling immediate feedback. You can launch your local environment on your laptop, equipped with your preferred tools, while Telepresence seamlessly connects them to the microservices and test databases they rely on. It simplifies and expedites collaborative development, debugging, and testing within Kubernetes environments by establishing a seamless connection between your local machine and shared remote Kubernetes clusters. Why Telepresence: Faster feedback loops: Spend less time building, containerizing, and deploying code. Get immediate feedback on code changes by running your service in the cloud from your local machine. Shift testing left: Create a remote-to-local debugging experience. Catch bugs pre-production without the configuration headache of remote debugging. Deliver better, faster user experience: Get new features and applications into the hands of users faster and more frequently.Starting Price: Free -
4
Panoptica
Cisco
Panoptica makes it easy to secure your containers, APIs, and serverless functions, and manage software bills of materials. It analyzes internal and external APIs and assigns risk scores. Your policies govern which API calls the gateway permits or disables. New cloud-native architectures allow teams to develop and deploy software more quickly, keeping up with the pace of today’s market. But this speed can come with a cost—security. Panoptica closes the gaps by integrating automated, policy-based security and visibility into every stage of the software-development lifecycle. Decentralized cloud-native architectures have significantly increased the number of attack surfaces. At the same time, changes in the computing landscape have raised the risk of catastrophic security breaches. Here are some of the reasons why comprehensive security is more important than ever before. You need a platform that protects the entire application lifecycle—from development to runtime.Starting Price: $0 -
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NeuVector
SUSE
NeuVector covers the entire CI/CD pipeline with complete vulnerability management and attack blocking in production with our patented container firewall. NeuVector has you covered with PCI-ready container security. Meet requirements with less time and less work. NeuVector protects your data and IP in public and private cloud environments. Continuously scan throughout the container lifecycle. Remove security roadblocks. Bake in security policies at the start. Comprehensive vulnerability management to establish your risk profile and the only patented container firewall for immediate protection from zero days, known, and unknown threats. Essential for PCI and other mandates, NeuVector creates a virtual wall to keep personal and private information securely isolated on your network. NeuVector is the only kubernetes-native container security platform that delivers complete container security.Starting Price: 1200/node/yr -
6
Constellation
Edgeless Systems
Constellation is a CNCF-certified Kubernetes distribution that leverages confidential computing to encrypt and isolate entire clusters, protecting data at rest, in transit, and during processing, by running control and worker planes within hardware-enforced trusted execution environments. It ensures workload integrity through cryptographic certificates and supply-chain security mechanisms (SLSA Level 3, sigstore-based signing), passes Center for Internet Security Kubernetes benchmarks, and uses Cilium with WireGuard for granular eBPF traffic control and end-to-end encryption. Designed for high availability and autoscaling, Constellation delivers near-native performance on all major clouds and supports rapid setup via a simple CLI and kubeadm interface. It implements Kubernetes security updates within 24 hours, offers hardware-backed attestation and reproducible builds, and integrates seamlessly with existing DevOps tools through standard APIs.Starting Price: Free -
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Aptible
Aptible
Aptible automatically implements the security controls you need to achieve regulatory compliance and pass customer audits. Out-of-the-box compliance. Aptible Deploy enables you to meet and maintain regulatory compliance and customer audit requirements automatically. Aptible provides everything you need to meet encryption requirements so your Databases, traffic, and certificates are secure. You get automatic backups of your data every 24 hours. You can trigger a manual backup at any time, and restore in a few clicks. Logs are generated and backed up for every deploy, config change, database tunnel, and console operation, and session. Aptible monitors the underlying EC2 instances in your stacks for potential intrusions, such as unauthorized SSH access, rootkits, file integrity issues, and privilege escalation. The Aptible Security Team responds on your behalf 24/7 to investigate and resolve issues as they arise.
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