Automate the obvious and investigate the ambiguous. High-performance safety rules engine for real-time event processing at scale.

Directory of open source tools for online safety

Share evaluation outcomes and implementation tips for using open safety models in Trust & Safety workflows

Software and Resources for Mitigating Online Gender Based Violence in India

ActivityPub Trust and Safety Taskforce

Review tool for online safety; provides a dashboard, queues, routing and automatic enforcement rules, and integrations.

A trust and safety agent that interacts with Osprey for investigation, real-time analysis, and prevention implementations

Self-hosted Trust & Safety policy engine with A/B testing, replay, and full audit trails

Documentation and policies for the ROOST organization and open source community. File non-technical or ROOST-wide issues here.

A Go implementation of Facebook's PDQ

Your third-party safety layer for verified, transparent, and scam-free online transactions.

A .NET implementation of the PDQ hashing algorithm to make integrating Trust and Safety tools for digital service providers easier.

A Reflection on Truth, Power, and the Misdiagnosis of Awareness

OpenSiteTrust is an open, explainable, and reusable website scoring ecosystem

Combat fake news with cryptographic image verification. Origin Lens analyzes C2PA Content Credentials and EXIF metadata to detect AI-generated content, verify digital signatures, and reveal complete edit history. Privacy-first open source iOS app with on-device verification. (arXiv:2602.03423)

🤝 Using large language models to seamlessly help content moderators make better decisions, faster.

ls -la for MCP servers. See tools, resources, and risky capabilities before you connect or trust a server.

The [SEED] Foundry - The Startup Ethical Economic Design - Decision Matrix for Social Technology Founders

Desktop app for detecting inappropriate or unsafe messages using PyQt6, OCR, and NLP (rule-based + DistilBERT).

Impledge platform infrastructure