Your sensitive data never leaves your machine
The extension that protects your personal information directly on your computer, with nothing sent online.
Coming soon to Chrome
AI
CleanPrompt Assistant
No data masked yet
Type your request…
Instant masking
Names, emails, numbers, addresses: detected and masked before anything is sent to the AI.
100% local
Everything happens on your machine. No data ever leaves your computer.
Ready in 3 clicks
Install the extension, turn it on, and you're protected right away wherever you work.
Features
Built for frictionless protection
Work with AI with total confidence. Your sensitive data never leaves your device.
Automatic detection
The local AI model spots names, emails, phone numbers and company names before anything is sent, with zero setup.
Contact at for next steps.
Custom rules
Add your own keywords and regex to mask exactly what you want protected.
Keywords
Project nameInternal ID•••••••
RegexPRO
Unlimited regex
Works with
Compatible with the AI assistants you already use every day.
100% local
Nothing is stored or transmitted. All processing happens locally, on your device.
0 requests to a server
Pricing
Lifetime access, not a subscription
Pay once and protect your data forever. No renewals, no surprises.
Launch offer: reduced price for early adopters
Free
Try local protection without spending a cent.
0 €
forever
Coming soon to Chrome
Masks names, emails and phone numbers
Built-in local AI model
2 custom keywords
Works with ChatGPT, Claude, Gemini, Perplexity, Mistral, Z.ai
100% local, nothing is stored
Launch
Pro, lifetime access
Everything you need for maximum protection, once.
19.99 €
29.99 €−33%
one-time payment · lifetime
Coming soon to Chrome
Upgrading to Pro happens from inside the extension, after installing it.
Everything in Free, plus:
Unlimited custom keywords
Custom regex rules
Advanced types: IBAN, national ID numbers, API keys
All future updates included
No data collected
100% local processing
Lifetime access
Frequently asked questions
Everything you need to know about protecting your data with CleanPrompt.
No, never. Detection and masking run entirely on your machine using the built-in AI model. Only the already-masked text is sent to the AI assistant you're using.
The extension analyzes the text you type in real time. It automatically detects sensitive data (names, emails, phone numbers…) and replaces it with generic tokens (e.g. [NAME], [EMAIL]) before anything is sent.
CleanPrompt works with ChatGPT, Claude, Gemini, Perplexity, Mistral and Z.ai. The extension automatically masks your data before it's sent on each of these platforms.
Free includes masking of personal data, a local AI model, and 2 custom keywords. Pro (lifetime access) adds unlimited keywords, custom regex rules, and advanced data types (IBAN, national ID numbers, API keys).
You pay once and get permanent access to the Pro version, including all future updates. No subscription, no renewal, no surprises.
On the Free plan you can add up to 2 custom keywords. On Pro you can add unlimited keywords and define your own regular expressions (regex).
CleanPrompt works on Chrome and Chromium-based browsers (Edge, Brave…). Firefox support is planned.
The AI assistant only ever sees the masked text: tokens like [NAME] or [EMAIL] in place of your real data. Your sensitive information is never sent.
Protect your data today
Install the extension and start using AI without ever exposing your personal information.
Coming soon to Chrome
See pricing
No credit card required · 100% local · Data never sent