[nonimo]
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Use AI.
Keep client data private.

Select any text, press one key. Client names, IDs and account numbers are replaced before your text reaches the AI — and put back in the answer.

Download for Mac soon Download for Windows soon

Works with ChatGPT, Claude, Copilot, Gemini and any other site or app.

Scroll to try the live demo ↓

Try it right here.

This page makes zero network requests — open DevTools and check.

The real engine is running inside this tab. Paste a document or load an example: nothing you type leaves your computer.

Your text
What would actually be sent
Loading the engine (168 KB, once)…

How it works

1

You select text

In your email, your CRM, a PDF — anywhere. Then press the hotkey.

2

Data becomes labels

The name becomes [PERSON_1] in every place it appears, so the AI can still follow who is who. Each masked item shows its reason, and one click undoes it.

3

The answer comes back real

When the AI replies about [PERSON_1], Nonimo puts the real name back — on your computer, where it never left.

The map to undo it never leaves your computer.

What it catches

Two kinds of detection, treated differently on purpose.

Numbers that prove themselves

Tax file numbers, Medicare, ABN, IBAN, credit cards, passport machine-readable zones. Their own check digits confirm them, so they are cleaned automatically.

Australian and Spanish identifiers built in.

Names and addresses

Found by their position — the form label, the signature, the title before the surname — never by a list of names. That is why it works the same for any name from anywhere in the world.

Masked reversibly, with the reason shown.

File and case references

The claim number, the case file, the policy: the numbers that pull up a whole person if they leak.

Your own client list

Load your clients and projects once. A four-hundred-name list from your own practice beats any general-purpose model — and it never leaves your machine.

What never happens

No network. None.

The engine has no code to connect anywhere. Open it and check — that is the point.

No AI model deciding

Detection is deterministic. Same text in, same result out, every time — in milliseconds.

Substance is never masked

Nationality, ethnicity or language are often the point of the question — in a protection claim, they are the case. Nonimo masks who the person is, not what the question is about.

Nothing silent without proof

Only values confirmed by a check digit are cleaned silently. Everything else is shown, explained, and undoable in one click.

Rolling this out to a team?

Extension deployed by policy, a compliance panel installed on your own server, and the monthly report an auditor asks for.