What is Sonomos?
Sonomos is a browser extension that protects sensitive information when using AI assistants like ChatGPT, Claude, Gemini, and Grok. It runs entirely in your browser—no servers, no network calls, no data leaving your machine.
Sonomos is not a chatbot, not an AI wrapper, and not a cloud service. It's privacy infrastructure designed to make AI usable in environments where confidentiality matters.
How It Works
Dagger (Detection)
Real-time detection of sensitive data as you type. Underlines flagged content with color-coded risk levels:
- Yellow underline = Medium risk, review recommended
- Red underline = High risk, action required
Displays contextual tooltips explaining why content is flagged. Detection categories can be enabled, disabled, or customized.
Cloak (Protection)
Transforms sensitive data before it reaches AI systems using obfuscation, tokenization, or controlled substitution. Preserves meaning where possible. Can be toggled independently from Dagger.
Traffic Light Widget
Visual indicator showing current protection status:
- Green = Safe to proceed, no sensitive data detected
- Yellow = Medium risk, review recommended
- Red = High risk, action required
What Makes Sonomos Different
- 100% Local: Everything runs on your device. No servers, no network calls.
- Zero-Knowledge: We never see, store, or transmit your data.
- Nothing to Trust: No third-party servers means no trust required.
- Nothing to Breach: No data collection means no data to leak.
- Privacy by Design: Built for confidentiality from the ground up.
- Visual Clarity: System state is always visible at a glance.
What Sonomos Detects
- Personal identifiers (SSNs, dates of birth)
- Contact information (emails, phone numbers, addresses)
- Financial data (credit card numbers, bank accounts)
- Health information and medical terms
- Client and customer names
- Custom patterns relevant to your industry
Who Is Sonomos For?
Sonomos is designed for people who value control over their data:
- Legal professionals: Lawyers, paralegals, compliance officers
- Investigators and consultants: Handling sensitive case information
- Healthcare professionals: Working with patient data
- Regulated industries: Finance, insurance, government
- Privacy-conscious individuals: Anyone who values data protection
Supported Platforms
- ChatGPT (chat.openai.com)
- Claude (claude.ai)
- Gemini (gemini.google.com)
- Grok (x.com/i/grok)
- Other AI chat interfaces
Pricing
Sonomos is currently in development. Early access will be available soon.
- Free tier: Core detection and protection features
- Pro tier: Advanced customization, priority support, additional detection categories
Pricing details will be announced at launch. Join the waitlist at sonomos.ai for early access.
Frequently Asked Questions
What is Sonomos?
A browser extension that detects and protects sensitive data before it reaches AI systems like ChatGPT, Claude, or Gemini. Runs 100% locally on your device. No servers, no data transmission, no accounts required.
How does Sonomos protect my data?
Two components: Dagger detects sensitive data in real-time with colored underlines (yellow = medium risk, red = high risk). Cloak transforms flagged data using tokenization or obfuscation before it reaches the AI. Both can be toggled independently.
Does Sonomos store or collect my data?
No. All processing happens locally in your browser. Nothing is stored, logged, or transmitted. Zero-knowledge architecture means we never see your data.
What does the traffic light indicator mean?
Green = no sensitive data detected. Yellow = potentially sensitive data, review recommended. Red = sensitive data detected, action required.
Can I control what Sonomos detects?
Yes. Detection categories (personal identifiers, financial data, health info, client names, custom terms) can be individually enabled, disabled, or adjusted for sensitivity level.
Is Sonomos suitable for regulated industries?
Yes. Designed for lawyers, healthcare professionals, consultants, and others handling confidential data. Local-only processing means no third-party data exposure.
What AI platforms does Sonomos work with?
ChatGPT, Claude, Gemini, Grok, and other AI chat interfaces. Works as a browser extension that intercepts text before submission.
How is Sonomos different from other privacy tools?
100% local processing—no cloud, no servers, no trust required. Visual system state (traffic light) instead of hidden automation. Detection and protection as separate, controllable layers.
Contact Us
- Website: https://sonomos.ai
- Email: hello@sonomos.ai
- Contact form: https://sonomos.ai/contact
- Twitter/X: @sonomos_AI
- LinkedIn: Sonomos AI