https://rulezet.org/ - Explore, share and manage detection rules across all major formats. An open source project and open free online service.

Rulezet is an open-source web platform for sharing, evaluating, improving, and managing cybersecurity detection rules (YARA, Sigma, Suricata, etc). It aims to foster collaboration among professionals and enthusiasts to improve the quality and reliability of detection rules.

Online version: https://rulezet.org/
Source: https://github.com/rulezet/rulezet-core