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Free AI security tools
12 security tools with a free plan, free tier or free open-source version. Security tools whose official pricing page shows a free plan or free tier, plus open-source projects. Free plans usually have limits on usage, features or commercial use, so check each one before relying on it.
How to read this page. The tools are grouped by category and are not ranked. Pricing labels come from vendors' own pages when we could confirm them. Always verify plans and limits on the vendor's site.
Security (12)
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| Aikido Security | Developer security platform covering code, dependencies, cloud and containers with AI autofix. | Freemium | Official site |
| Bitwarden | Open-source password manager. | Freemium | Official site |
| Corgea | AI application security platform that finds, triages and fixes vulnerabilities across code, packages and infrastructure. | Freemium | Official site |
| Garak | NVIDIA open-source LLM vulnerability scanner. | Free | Official site |
| GitGuardian | Secrets detection and credential security platform. | Freemium | Official site |
| Knostic | Security controls for AI coding agents, MCP servers and AI assistants on employee machines. | Freemium | Official site |
| LLM Guard | Open-source security toolkit for LLM interactions. | Free | Official site |
| Mobb | Automatic vulnerability remediation that turns security scanner findings into code fixes. | Freemium | Official site |
| Proton Pass | Encrypted password manager from Proton. | Freemium | Official site |
| Semgrep | Code security scanning with an AI assistant for triage and fixes. | Freemium | Official site |
| Snyk | Developer security platform for securing code, open-source dependencies and AI-assisted code and agents. | Freemium | Official site |
| Socket | Detects and blocks malicious or risky open-source dependencies to prevent supply chain attacks. | Freemium | Official site |