The best free alternative to GuardRails is GitHub. If that doesn't suit you, our users have ranked more than 10 alternatives to GuardRails and 11 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to GuardRails are Artemis Security Scanner, Aikido Security, Snyk and Mend Bolt.
Git hosting service offering version control, collaboration, and project management tools. Provides issue tracking, code review through pull requests, wikis, and deployment workflows.
Artemis is an open-source security vulnerability scanner developed by CERT PL. It is built to look for website misconfigurations and vulnerabilities on a large number of sites. It automatically prepares reports that can be sent to the affected institutions.
Aikido Security is a developer-first software security platform. We scan your source code & cloud to show you which vulnerabilities are actually important to solve. Triaging is sped up by massively reducing false-positives and making CVEs human-readable.
Mend Bolt is designed to provide real-time security alerts and compliance issues related to your open source dependencies. It operates within Azure DevOps or GitHub, enabling you to identify and address open source vulnerabilities promptly.
BackHub is a backup service for public and private GitHub Repositories. Protect your data and save money on your GitHub plan by archiving repositories to BackHub.
NPMScan is a security analysis tool for the JavaScript ecosystem. It scans npm packages for malicious behavior and supply chain risks that are often invisible to developers. The scanner inspects scripts, dependencies, encoded payloads, metadata, and common attack patterns used...
SkillRisk is a specialized security analysis tool designed for the AI Agent ecosystem, specifically focusing on Claude Code and Model Context Protocol (MCP) skills.
SecDash automatically detects security vulnerabilities in applications created with ChatGPT, Claude, and other AI tools, providing clear and actionable guidance.
Unified application security platform — 12 scanners including SAST, DAST, SCA, and pen-testing in one on-premise deployment. Replaces your entire AppSec stack.
AI agent governance middleware providing PII detection, policy enforcement, compliance receipts, and kill switch for AI agents.
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