AEGIS

AEGIS is a self-hosted, open-source platform that detects and responds to security threats across systems and applications. It suits individuals, homelabs, and small teams prepared to run their own deployment. Its mix of broad detection, response tools, and decoys is unusual in a free product, though the free tier’s caps limit its reach.

Overview

AEGIS brings threat detection, analysis, and response together in a platform deployed on premises. Its five-layer detection pipeline covers web attacks such as SQL injection and XSS, along with brute force, port scans, credential theft, lateral movement, and C2 beacons. The project reports an 11/11 detection score and 18-microsecond latency for its middleware layer; those figures describe the project’s claims, not a guarantee of results in every environment.

Response features include behavioral detection, automatic isolation, EDR, and rollback or recovery. This breadth makes AEGIS more than a narrow ransomware blocker, but teams should judge it against the response workflows they need. The license is AGPL-3.0, a practical consideration for organizations evaluating open-source software.

Key features

Deception and investigation

SSH and HTTP honeypots, breadcrumb credential traps, and attacker interaction profiling can help reveal suspicious activity around decoy resources. These tools add value for teams that want to observe attacker behavior as well as detect threats. AEGIS also describes shared threat intelligence, though the scope and operation of that sharing are not detailed.

AI with an offline path

AI features can use OpenRouter, OpenAI, Anthropic, or Ollama. Deterministic Sigma rules and playbooks work without an AI API key, so the core rules-based approach does not depend on connecting an AI provider. The choice of AI provider is useful for teams with a preferred service or local Ollama setup.

Self-hosted deployment

The free version is installed with Docker Compose after cloning the repository. That gives users control over an on-premises deployment, but also makes setup and operation their responsibility. AEGIS supports API, Linux, macOS, web, and Windows platforms; it is described as cross-platform.

Pricing

Free · Open Source: free. The plan allows up to 20 nodes, 100 assets, and 3 users. It fits individuals, homelabs, and small teams that can work within those ceilings and manage a self-hosted installation. There is no free trial because the product has a free plan.

Enterprise: custom pricing. Enterprise removes the node, asset, and user limits and includes an SLA and dedicated support. It also adds a compliance dashboard for ISO 27001, NIS2, and SOC 2, plus SSO through SAML or OIDC. This plan is aimed at companies needing broader scale and these enterprise capabilities; its price is custom.

Platforms

AEGIS is self-hosted and supports API, Linux, macOS, web, and Windows environments. Its Docker Compose deployment is suited to users comfortable running software on their own infrastructure, rather than those seeking a managed service.

Who it's for

AEGIS is a strong fit for technically capable individuals, homelabs, and small teams looking for threat detection, active response, and deception tools without a subscription fee. Companies can consider Enterprise when the free plan’s caps are too small or when they need compliance reporting, SSO, an SLA, and dedicated support. Organizations that want a vendor-managed deployment or need more than three users on the free tier should look elsewhere.

Pros and cons

• Pros: Broad named threat coverage combines with behavioral detection, automatic isolation, EDR, and rollback or recovery.
• Pros: Honeypots and credential traps add deception capabilities alongside conventional detection.
• Pros: Sigma rules and playbooks work without an AI API key, while AI features can use several named providers.
• Pros: The free plan costs nothing and includes up to 20 nodes, 100 assets, and 3 users.
• Cons: Docker Compose self-hosting requires users to run and manage the deployment themselves.
• Cons: The free plan’s three-user, 20-node, and 100-asset ceilings may constrain growing teams.
• Cons: Enterprise pricing is custom, so companies must contact AEGIS to assess its cost.
• Cons: AGPL-3.0 licensing may require review by organizations with specific software licensing policies.

Alternatives

For a broader set of ransomware-focused choices, browse Ransomware Protection Software.

AppCheck is worth considering for individual users seeking a free ransomware protection option, or for buyers who prefer a per-year Pro plan for one PC.

ManageEngine Ransomware Protection Plus may suit Windows-oriented teams looking for a free edition capped at 25 endpoints, with web and self-hosted platforms.

Sangfor EasyConnect is a paid alternative with Android and iOS support as well as desktop and web platforms.

NeuShield Ransomware Protection offers a free edition and a per-device annual license for Windows users.

RackTop BrickStor SP offers a 90-day evaluation of its full platform, with two VMs included in its Jumpstart program.

Kaspersky Anti-Ransomware Tool is a free Windows option, with a business plan for up to 50 devices.

Check Point External Risk Management is a paid option for teams seeking external risk management across API, extension, desktop, and web platforms.

Malwarebytes Ransomware Protection is a freemium alternative for Android, iOS, macOS, and Windows.

Verdict

Choose AEGIS if you want a free, self-hosted security platform that combines broad threat detection with response and deception tools, and your deployment fits within 20 nodes, 100 assets, and 3 users. Its AI-optional rules and cross-platform reach add flexibility. Look elsewhere if you need a managed service, higher free-tier limits, or clearly priced enterprise scale.