Clean before AI™ for Chrome
Paste into ChatGPT, Claude, Gemini or any other AI as usual. Before the AI site receives the text, Clean before AI finds personal and confidential data and replaces it with labels like [PERSON_1]. The AI answers with labels — and the extension shows you the answer with your real data. Everything happens on your computer.
How it works
Paste an email, contract or report into the AI chat. If it contains personal data, a small window appears — before the AI site sees anything.
One click replaces names, IDs, IBANs, addresses and companies with labels. A short note asks the AI to keep the labels.
The side panel opens by itself and shows the AI’s answer with your real data. Copy it with one click. The AI only ever saw the labels.
Your real data never leaves your computer.
Works on
Support for more sites is added continuously.
Understands your language — not just English
EMŠO, davčna, TRR, d.o.o., s.p., Slovenian declension
OIB, JMBG, PIB, Latin and Cyrillic, incl. Montenegro, -ić surnames
Steuer-ID, SV-Nummer, SVNR, GmbH, Straße
Codice fiscale, Partita IVA, S.r.l.
NIR, SIREN/SIRET, SARL, rue …
DNI, NIE, CIF, S.L., calle, two surnames
NIF, NIPC, CPF, Lda., rua, 1100-053
SSN, EIN, Medicare, NI, NHS, UTR, Ltd/Inc/LLC
PESEL, NIP, REGON, sp. z o.o., Polish declension
BSN, KvK, btw, B.V., van der …
CNP, CUI, S.R.L., Str. … nr.
Rodné číslo, IČO, DIČ, s.r.o., -ová surnames
TAJ, adóazonosító jel, Kft., family name first, suffixes
ZZZS, MBO, KVNR, MRN, case numbers · passwords, API keys, servers · Excel/CSV tables
Questions
Yes. The extension and the web tool are free.
Yes — our own small AI model (17 languages) is bundled in the extension and runs on your computer, without internet. It finds names, nicknames and addresses that the rules don’t know. You can switch it off in the side panel settings.
Yes. In the side panel add your known names — colleagues, clients, projects — or import them from a CSV file. They are hidden in every form, in capitals and without accents. Organisations can set the list for all employees through a Chrome policy (knownNames).
No. The extension has no server and makes no network requests. Only the cleaned text you send yourself goes to the AI provider.
Chrome and Chromium-based browsers that can install extensions from the Chrome Web Store (Edge, Brave, Opera, Vivaldi).
Numbers with checksums (IBANs, card numbers, national and tax IDs) are found very reliably. Unusual names or indirect clues can slip through — always take a quick look before sending.