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CTFd is a free cyber range training tool. Mellivora is a free cyber range training tool. Compare features, ratings, integrations, and community reviews side by side to find the best cyber range training fit for your security stack.
Based on our analysis of available product data, here is our conclusion:
Security teams and training programs building internal skill-development competitions will find CTFd the fastest path to launch; its free, self-hosted model means you control the infrastructure and avoid vendor lock-in while running unlimited challenges. The 6,500-plus GitHub stars and active open-source community signal real production deployments and rapid bug fixes. Skip CTFd if you need a managed SaaS platform with hands-off administration or enterprise SSO controls; this is a build-it-yourself framework, not a turnkey service.
Security teams running internal CTF competitions or capture-the-flag training programs should use Mellivora for its lightweight, self-hosted architecture; you get full control over challenge creation and scoring without vendor lock-in or monthly bills. With 453 GitHub stars and PHP-based deployment, it's proven enough for university programs and mid-sized security training operations that want to host their own infrastructure. Skip this if you need a managed platform with slick UX or integration into a broader security awareness suite; Mellivora requires hands-on administration and assumes your team is comfortable with open-source tooling.
CTFd is a web-based framework for creating and managing Capture The Flag cybersecurity competitions with customizable challenges, scoring systems, and team management capabilities.
Mellivora Mellivora is a PHP-based CTF engine that provides comprehensive competition hosting capabilities with challenge management, team scoring, and administrative tools for cybersecurity competitions.
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Common questions about comparing CTFd vs Mellivora for your cyber range training needs.
CTFd: CTFd is a web-based framework for creating and managing Capture The Flag cybersecurity competitions with customizable challenges, scoring systems, and team management capabilities..
Mellivora: Mellivora Mellivora is a PHP-based CTF engine that provides comprehensive competition hosting capabilities with challenge management, team scoring, and administrative tools for cybersecurity competitions..
Both serve the Cyber Range Training market but differ in approach, feature depth, and target audience.
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