Your prompts never leave your browser
Protect your sensitive data in LLMs
SafePrompt automatically detects your API secrets, emails, and personal data and replaces them with a fake token, directly in your browser — before they reach ChatGPT, Claude, or Gemini.
- GDPR Compliant
- EU Hosted
- 100% Local
- Stripe Secured
100% in your browser • No data in transit • GDPR EU
How it works
3 steps, 100% in your browser
Detection
The extension analyzes your prompt in real time and identifies secrets, emails, keys, and personal data.
Local masking
Each sensitive piece of data is replaced by an anonymous fake token (e.g., [EMAIL_1]). The replacement happens in your browser — nothing leaves.
Local restoration
The LLM response arrives with the fake tokens. SafePrompt replaces them with your real data, always in your browser.
Why everything in your browser?
The only way to get a real privacy guarantee
No data in transit
Your original prompts never leave your machine. Unlike server-side data interception tools, there's nothing to intercept.
100% EU infrastructure
Only anonymous metadata (usage statistics) transits — to our servers in Frankfurt/Amsterdam. Never the content of your prompts.
Verifiable architecture
The detection logic runs in your browser. You can inspect the extension code. Trust is proven, not proclaimed.
Who is it for?
Solo & Freelancers
Developers, consultants, and freelancers using LLMs with client data. Protect your API secrets and contracts without changing your habits.
SMEs & growing start-ups
Teams of 5 to 49 people. Centralized dashboard, team management, team anonymization mode. GDPR compliance without a dedicated IT department.
Large enterprises
50+ employees. Single Sign-On (SSO), automated account provisioning, complete audit log (SOC 2 compatible), data processing agreement included. For CISOs who need proof, not promises.
Your prompts never leave your browser
SafePrompt automatically detects your API secrets, emails, and personal data and replaces them with a fake token, directly in your browser — before they reach ChatGPT, Claude, or Gemini.