# SOWA Privacy > SOWA Privacy is an AI privacy solution that detects and anonymizes sensitive > data in AI prompts before they reach external AI tools. Detection runs locally > on the user's device using regex patterns, named entity recognition models, > and optional local LLMs. No prompt data leaves the device unmasked. SOWA Privacy was founded in April 2026 by Lennart du Hamel, Moritz Becker, and Przemysław Słowik. The company is headquartered in Poland and operates under the principle of Sovereign AI – full local processing, no cloud dependencies, fully auditable open-source code. The flagship product is a Chrome Manifest V3 browser extension, released publicly on May 5, 2026 with version 1.0 launching to the Chrome Web Store on April 24, 2026. ## Product The extension works with ChatGPT, Claude, Gemini, Microsoft Copilot, Grok, Perplexity, HuggingFace Chat, and any self-hosted OpenAI-compatible interface. It handles PDF, DOCX, XLSX, TXT, CSV, JSON, and XML file uploads, with format-preserving anonymization for PDF→PDF and DOCX→DOCX flows. Detection runs in three layers: 1. Regex – 40+ patterns covering email, PESEL, NIP, IBAN, SSN, credit cards, API keys, JWTs, RSA keys, and other structured identifiers. 2. Named Entity Recognition – DistilBERT multilingual and gravitee-io PII models, executed as ONNX in-browser via Transformers.js. Catches names, places, organizations, and free-text identifiers. 3. Local LLM (optional) – Phi-3, Llama 2, Qwen, or Mistral via WebLLM, or external OpenAI-compatible APIs like Ollama and LM Studio. ## Pricing - Starter – Free forever. 30+ regex patterns, basic NER, TXT scanning, session-only dictionary of 50 entries. - Pro – 4.99 EUR per month. Full regex and NER customization, all file formats, 7 local LLM models, email support with 48-hour response. - Business – 7.99 EUR per user per month, 5 seat minimum. Team admin dashboard, audit trail and export, priority Slack support. - Enterprise – Custom pricing, 25+ seats. MSI/MDM deployment, SSO/SAML, SIEM integration, dedicated account manager. ## Target sectors Public sector (ministries, municipalities, agencies), healthcare (patient data, HIPAA, GDPR Article 9), finance and legal (professional secrecy, client data, IBAN/tax IDs), and critical infrastructure (KRITIS – trade secrets, asset data, energy, telecom, transport). Aligned with GDPR including special-category data under Article 9, the EU AI Act, HIPAA for healthcare workflows, and sectoral professional-secrecy rules across European jurisdictions. ## Key links - Homepage: https://sowaprivacy.ai - Pricing: https://sowaprivacy.ai/en/pricing - How it works: https://sowaprivacy.ai/en/how-it-works - Why SOWA: https://sowaprivacy.ai/en/why-sowa - FAQ: https://sowaprivacy.ai/en/faq - Blog: https://sowaprivacy.ai/en/blog/ - Security: https://sowaprivacy.ai/en/security - About: https://sowaprivacy.ai/en/about - Contact: https://sowaprivacy.ai/en/contact - Chrome Web Store: https://chromewebstore.google.com/detail/sowa-privacy-%E2%80%94-ai-chat-an/lhpcfjnknpejmolmdfmggmkbajanokfh - GitHub: https://github.com/Sowa-Privacy - LinkedIn: https://www.linkedin.com/company/sowa-privacy - X (Twitter): https://x.com/SOWAPrivacy - YouTube: https://www.youtube.com/@SOWAPrivacy ## Account - Sign in: https://sowaprivacy.ai/en/login - Sign up: https://sowaprivacy.ai/en/signup ## License The Chrome extension source code is open source under the MIT license. ## Languages The website is available in 14 languages: English, Polish, German, French, Italian, Spanish, Portuguese, Dutch, Danish, Norwegian, Swedish, Finnish, Estonian, Ukrainian. ## What SOWA Privacy is not SOWA Privacy is not a cloud service. It is not a proxy server. It does not require organizational infrastructure changes. It does not transmit prompt content to SOWA-controlled servers. It is not a replacement for AI tools – it is an anonymization layer that sits between the user and the AI tool.