Foil AI Code Security

Foil AI Code Security is a desktop application for macOS that scans your source code for security vulnerabilities. Its core function is to analyze code across seven programming languages, looking for logic flaws and security risks like those listed in the OWASP Top 10. The key differentiator is that all analysis happens on your own Mac using a local AI model; your source code is never sent to the cloud. You can run scans from a graphical interface or directly from the command line, making it fit into existing development workflows.

It works by using a custom large language model called SecureReview-7B, which is fine-tuned specifically for code review and vulnerability analysis. This model is quantized to run efficiently on Apple Silicon GPUs using the MLX framework. Unlike generic chatbots or cloud-based scanners, this model is trained to reason about code context and agentic workflows. After a scan, Foil AI Code Security's 'Deep Dive' and 'Deep Scan' features explain the found vulnerability, validate its exploitability, and can even rewrite your code with a secure fix and inline comments.

The tool is built for developers and security professionals who prioritize data privacy and need a fast, offline security audit. It's particularly useful for teams that want to integrate security scanning into their CI/CD pipeline without exposing proprietary code to third-party services. Real-world use includes scanning a local project repository with a single command to get a list of vulnerabilities and suggested fixes before the code is committed or shipped.