Free browser extension

Why give your sensitive data to ChatGPT?

Prompty quietly removes the sensitive bits from your prompts before they're sent — so you don't have to think about it.

Prompty mascot
prompty — active
›scanning your prompt…
›■ postcode found         → removed
›■ 3 email addresses      → removed
›■ company number        → removed
›✓ safe to send
›_

Private by design

Nothing you type is ever sent to us — it's checked on your own device.

No slowdown

It works in the background, instantly, without getting in your way.

Ready out of the box

Rules for 30+ countries, loaded for you. No setup, no account.

The problem

Most of us don't think twice about what we type into AI.

Your name, your address, your bank details, private messages — it all ends up in AI chat windows every day, and most people don't realise it's a problem until it is.

Without Prompty

Personal details and private messages get pasted into AI without a second thought.
Most security tools weren't built for AI assistants — they simply don't see it happening.
Once your data reaches a third-party AI, it's out of your hands for good.

With Prompty

Sensitive information is quietly removed before your prompt is sent.
Works with ChatGPT, Copilot, Claude and Gemini — nothing changes in how you use them.
Every time, you're told exactly what was caught and why.
How it works

Up and running in three minutes.

Prompty runs in the background. You type normally. It handles the rest.

1
Install

Add Prompty to your browser

Install it from the Chrome Web Store, pick your country, and you're set. No account, nothing to configure. Firefox and Safari are on the way.

2
Runs silently

Use ChatGPT, Copilot or Claude as normal

Prompty watches what you're about to send and spots names, emails, phone numbers, financial and health details — all on your own device.

3
Steps in when needed

Sensitive content is removed before it's sent

It swaps anything sensitive for a safe placeholder so the rest of your message goes through fine — with a clear note of what was caught. No blocked pages, no drama.

Why Prompty

Security tools should be boring.

Like a smoke detector: it just works, you never think about it, and it's there when you need it. Most tools like this are built for big organisations with big budgets. We built Prompty for everyone else.

Clear rules, not guesswork

Every decision comes from a readable rule. If something's removed, you can see exactly why — no black box.

Your messages stay yours

What you type is checked on your own computer and never sent to us. We never see it.

Built for everyone

If it needs a specialist to set up, it doesn't belong in Prompty. Install, pick your country, done.

Accurate, not noisy

We'd rather be right than ambitious. Constant false alarms are as useless as no tool at all.

Plans

Free for everyone. More when you need it.

Prompty in your browser is free, always. Teams and organisations can add more.

Free

Prompty

Free forever

The browser extension that removes sensitive data from your prompts, on your device.

Enterprise

For organisations

Protect your whole team

Everything in Pro, managed and enforced across your organisation.

Start protecting your AI conversations today.