SOWA Privacy

AI Privacy. On Premise.

SOWA Privacy is an open-source AI data protection proxy that works entirely inside your browser. It detects and anonymizes personally identifiable information in real time — before your prompt is ever sent to ChatGPT, Claude, Copilot, or any other AI platform. Your data stays on your device. Always.

Unlike platform-level privacy settings or VPNs, SOWA operates at the browser level and is fully independent of any AI system. It does not matter which AI tool you use — SOWA intercepts sensitive data before it leaves, with zero changes to your existing workflow.

How it works

SOWA runs a three-layer detection pipeline — entirely on-premise:

• Pattern Matching — 33 regex patterns covering names, IDs, case numbers, and more
• Named Entity Recognition (NER) — context-aware detection of sensitive entities
• Local LLM — on-device AI model for advanced, nuanced PII detection

All three layers run locally. Zero cloud dependencies. Zero data ever touches an external server.

Who it is for

• Individuals and privacy advocates who want to use AI tools without surrendering their personal data — download the free Chrome Extension and you are protected instantly, no account required.
• Developers and open-source contributors who need full auditability — every line of code is on GitHub, with 635 automated tests and a modular architecture you can extend yourself.
• Compliance officers and legal teams in organizations that must use AI tools in a GDPR-conscious way — SOWA makes your entire AI stack compliant out of the box, without rearchitecting your infrastructure.
• IT and security leads who need org-wide control — deploy via Chrome Master Policy across every machine in minutes.
• Enterprises in healthcare, finance, law, and the public sector — SOWA's Enterprise Edition includes SLA-backed support, audit logs, role-based configuration, and a certified distribution covering 4 languages and 8 detection presets.

Key features

• Free Chrome Extension — download for free, no account or configuration required
• 100% on-premise processing — Zero-Trust architecture, no cloud migration
• Platform-agnostic — works with any AI tool or platform
• Open source (Community Edition) and Enterprise Edition available
• Supports 4 languages and 7 file formats
• Organization-wide deployment via Master Policy
• Fully auditable — github.com/Sowa-Privacy

SOWA Privacy. Your safety, our duty.