KASAH_

A privacy layer
between you and AI.

Kasah works seamlessly in the background to protect all of your sensitive information.

Protected
Data protected 0 items · sent to ChatGPT successfully
How it works

A small browser extension.
Automatic protection.

Always on, never in the way.

Kasah runs as a Chrome extension and macOS desktop app, protecting prompts before ChatGPT receives them. Nothing different about how ChatGPT feels to use.

Catches what's sensitive in the moment.

Kasah asks the privacy engine what must be protected, then replaces those exact parts with realistic safe values. ChatGPT answers the protected version. When the response comes back, Kasah switches your original data back in where restoration is safe.

Reads like a careful editor.

Kasah reads your prompt the way a careful editor would. It identifies names, financial figures, addresses, account identifiers, and the context-dependent content that simple pattern matching walks straight past. The Kasah Engine is built to catch the harder content too — with semantic judgment from the privacy engine and local runtime checks applying the result.

ChatGPT can't leak what it never sees.

Kasah is built to minimize who sees the real thing. The privacy engine is used only to decide what must be protected, ChatGPT receives the protected version, and reversible restoration mappings stay on your machine.

Install for Chrome
...like nobody's watching.
Pricing

One plan.
Full protection.

No tiers. No upsells. No "pro features".

$3.99/ month
Cancel anytime
Install for Chrome
What's included
  • 01 AI-powered entity detection Names, emails, financials, addresses — Kasah is built to catch all your sensitive data.
  • 02 File redaction PDF, DOCX, XLSX, PPTX. Same protection for files as for prompts.
  • 03 Kill switch If protection fails for any reason, Kasah blocks the prompt before it can be sent. You see why, and you choose what to do.
  • 04 Restores on your device No telemetry, no remote logs, no prompt training. Your data stays yours.
About

Why Kasah exists.

We have never been more careful with our data. We use VPNs, password managers, and two-factor authentication.

Then we open ChatGPT. We paste our salary, our medical history, and our contracts into a chat window built by people we have never met.

The leaks have already happened. Researchers have found over a million AI chat records sitting unprotected on open databases. OpenAI has publicly apologized for a breach that exposed user names and emails. Banks, hospitals, and major employers have quietly banned their staff from these tools. And the default policy still reads the same way: what you type is collected, stored, and used to train the next version of the AI model.

Almost everyone we know self-edits before they paste into ChatGPT. The contract goes in with the name changed. The medical question goes in as "asking for a friend." The bank statement goes in with personal information blacked out. The legal question goes in framed as fiction.

Kasah is the layer that should have existed from day one. Before a prompt or document leaves your machine, every name, figure, and contract clause is identified and replaced with a placeholder. The model answers the redacted version. Kasah swaps the real values back. The original never leaves your computer.

"We didn't spend years locking down our data just to hand it over to a chat window."

Founder · Kasah