Browser extension · free · open source

The guardian for your AI prompts.

Customer data doesn’t belong in AI chats.

AImori spots IBANs, passwords and customer data right in your browser and warns you before you send anything to an AI.

For Chrome and Edge · checks locally in the browser · no account

Free for everyone, straight from the Chrome Web Store – also for Edge.
For companies: deploy via Intune or GPO · Check the permissions yourself · Open source on GitHub

A shield catches sensitive characters and redacts them before they leave the chat.

Warning bar above the input — Compact above the input: names the data type, never the detected value.

Local onlyNo network access →
Open sourceSource code on GitHub →
No accountInstall and done
ChatGPT & co.Claude, Gemini, Copilot
242 data typesin 60 packs

See it in action

Just before sending, a slim bar appears above the input field. One click redacts the value, the rest stays.

New chat

Search chats

Chats

Quote for Sample Ltd

Team holiday plan

Excel formula

ChatGPT

What can I help with?

Write a friendly payment reminder for invoice 2026-114. Account: [Financial data] Copy to [Contact data]

Sure, here’s a suggestion:

Hello, our invoice 2026-114 is still open. Please transfer the amount to account [Financial data].

2 findings – redact before sending?RedactRedacted. The detected values stay behind.

Ask anything

Write a friendly payment reminder for invoice 2026-114.Account: CH93 0076 2011 6238 5295 7CH93 0076 2011 6238 5295 7[Financial data]Copy to customer@example.comcustomer@example.com[Contact data]

ChatGPT · Accounting: payment reminder with IBAN and email address

Write a friendly payment reminder for invoice 2026-114. Account: CH93 0076 2011 6238 5295 7 (is redacted to [Financial data]) Copy to customer@example.com (is redacted to [Contact data])

Claude

How can I help you today?

Why does the connection to the database fail? host=db.example.com password=[Credentials] Please name cause and fix.

It usually comes down to one of three things:

host unreachable, port blocked or the password [Credentials] has expired.

1 finding – redact before sending?RedactRedacted. The detected values stay behind.

How can I help?

Why does the connection to the database fail?host=db.example.com password=Example!2026Example!2026[Credentials]Please name cause and fix.

Claude · Development: debugging with a password in the text

Why does the connection to the database fail? host=db.example.com password=Example!2026 (is redacted to [Credentials]) Please name cause and fix.

Gemini

Hello

Draft a reference letter for Ms Sample, joined in 2021. AHV no. [Social security] Questions please to [Contact data]

Here is a draft:

Ms Sample joined us in 2021 and was responsible for payroll. Questions: [Contact data]

2 findings – redact before sending?RedactRedacted. The detected values stay behind.

Ask Gemini

Draft a reference letter for Ms Sample, joined in 2021.AHV no. 756.1234.5678.97756.1234.5678.97[Social security]Questions please to +44 20 7946 0958+44 20 7946 0958[Contact data]

Gemini · HR: reference letter with AHV and phone number

Draft a reference letter for Ms Sample, joined in 2021. AHV no. 756.1234.5678.97 (is redacted to [Social security]) Questions please to +44 20 7946 0958 (is redacted to [Contact data])

Copilot

What would you like to talk about?

Reply to [Contact data] The subscription on card [Financial data] is cancelled. Keep it polite.

Sure, here’s a suggestion:

Hello, the subscription on card [Financial data] is cancelled. You will get a confirmation by email.

2 findings – redact before sending?RedactRedacted. The detected values stay behind.

Message Copilot

Reply to customer@example.comcustomer@example.com[Contact data]The subscription on card 4242 4242 4242 42424242 4242 4242 4242[Financial data] is cancelled.Keep it polite.

Copilot · Customer service: reply with a card number (in Chrome)

Reply to customer@example.com (is redacted to [Contact data]) The subscription on card 4242 4242 4242 4242 (is redacted to [Financial data]) is cancelled. Keep it polite.

Replica of the interfaces, drawn by AImori itself, test values only. Brand names belong to their owners; no affiliation with the providers.

Free for Chrome Try it live

Try it yourself

Type or paste a test value. The bar reacts like the extension does, right here on the page.

Only enter sample data. The check runs only in your browser; nothing is sent or stored.

Check a whole text: free test “Is this text safe to paste into ChatGPT?”

AI assistantExample

How can I help?

Message to the AI assistant (demo)

What AImori detects

242data types in 60 packs. With check digits wherever they exist, so false alarms stay rare.

IBAN

BeforePay to CH93 0076 2011 6238 5295 7

AfterPay to [Financial data]

Swiss banking sample IBAN
Swiss AHV number

BeforeInsured under 756.1234.5678.97

AfterInsured under [Social security]

ZAS sample number
Credit card

BeforeCard 4242 4242 4242 4242

AfterCard [Financial data]

Stripe test card
API key

BeforeOPENAI_API_KEY=sk-proj-••••••••

AfterOPENAI_API_KEY=[Credentials]

shown shortened
Password

BeforePassword=Example!2026

AfterPassword=[Credentials]

made-up sample value
Customer email

BeforeReply to customer@example.com

AfterReply to [Contact data]

RFC 2606 sample domain
Phone number

BeforeCall back on +44 20 7946 0958

AfterCall back on [Contact data]

Ofcom test number
And over 230 more
ID cards and passports, tax and company numbers, health insurance cards, private keys and more.
See all 242 data types

Country packs, matched automatically

Over 50 countries and regions. AImori chooses the active packs from time zone and language region; companies set them centrally. See all 242 data types

Protected in three steps

AImoriChrome Web Store · for Chrome and Edge
Add to Chrome
1Add
Click “Add to Chrome” in the Chrome Web Store – in Edge, first “Allow extensions from other stores”. No account, no sign-up.
2Quick check
The icon shows: protection active. Nothing else to set up.
3Keep working
Write as usual. AImori only speaks up when something stands out.

Free for Chrome

For Chrome and Edge · checks locally in the browser · no account

For companies: deploy via Intune or GPO

Detailed guide with every step

Copilot in Edge: Edge allows no extensions on copilot.microsoft.com – protected in Chrome.

Your input stays with you.

The check runs entirely in your browser. AImori has no server that anything could go to.

To be honest: AImori helps against mistakes, but it is no guarantee. It does not replace clear rules or training.

Privacy in detail Check it yourself Source code on GitHub

No network access
The extension sends nothing to a server – there is none.
No account
Install and go, no sign-up.
No telemetry
Locally it only counts how often something was detected. No content.
Open source
The entire source code is public (GNU AGPL v3). Every line can be checked.

For companies and IT partners

Deploy centrally to every workstation, without servers or user accounts. Free in production too.

Roll out via Intune or Group Policy, ADMX templates for Edge and Chrome
Set rules per data type centrally, locked for employees
White label for IT partners: your own name, logo and colours
No content goes to IT: employees see who manages the extension

Go to the rollout guide More for companies Become a partner See use cases

Example policypolicy.json

{
  "rules": {
    "iban": "redact",
    "ch_ahv": "block"
  },
  "allowUserOverride": false,
  "allowedSites": ["chatgpt", "copilot"],
  "branding": { "companyName": "Example AG" }
}

Frequently asked questions

What does AImori cost?

Nothing for users. The product is funded by sponsors, associations and partners. It is open source.

Does AImori read along with my input?

The extension checks your input only locally in your browser. It has no network access and stores no text.

Which AI services and browsers?

ChatGPT, Claude, Gemini, Microsoft Copilot and Microsoft 365 Copilot in the browser, in Microsoft Edge and Google Chrome from version 110. Copilot in Edge: Edge allows no extensions on copilot.microsoft.com – protected in Chrome. The AI providers’ apps are not covered.

Does AImori protect me completely?

No. It is an aid against mistakes. PDF and Word files, for example, are not checked; freely reworded content without a fixed pattern can slip through.

All questions

Before your next prompt goes out.

Install AImori for free. No account, no server, right in your browser.

Free for Chrome For companies: deploy via Intune or GPO

Installation guide

Checks locally in the browser
Data stays in the browser
No account
Free, for businesses too

Customer data doesn’t belong in AI chats.

See it in action

Try it yourself

What AImori detects

Country packs, matched automatically

Protected in three steps

1Add

2Quick check

3Keep working

Your input stays with you.

No network access

No account

No telemetry

Open source

For companies and IT partners

Frequently asked questions

Before your next prompt goes out.