Remove the names.
Keep the document.

Q: Is it really offline?

Yes, as far as your documents go. The app only goes online for two things that have nothing to do with them: downloading the AI model the first time and checking for a new version at startup.

Q: What computer do I need?

Windows 10 or 11, macOS 11 or later, or 64-bit Linux. You need 8 GB of RAM (16 recommended) and about 10 GB of free disk space. Any 64-bit processor works, Apple Silicon included. You don’t need a graphics card.

Q: How long does it take?

A few seconds per page on a recent computer. It depends on the processor, since the model runs on the CPU.

Q: Does it catch everything?

It catches a lot, but it isn’t infallible: it’s a small model running locally. Tax codes and dates of birth get an extra check based on fixed rules. Before you share a sensitive document, look it over anyway.

Q: Does it work with English documents?

It’s built for Italian: the model’s instructions and the automatic checks are written for Italian documents and formats. Results in other languages haven’t been tested.

Q: Scanned PDFs too?

Yes. If a page has no text, the app reads it with Italian OCR and redacts the words right in the image.

Q: I have another question

Write to me through the contact form and I’ll reply by email as soon as I can.

Q: How much does it cost?

Nothing. Doc Anonymizer is open source under the MIT license. The app downloads the AI model on first launch.

Doc Anonymizer is an app for Mac, Windows and Linux. It finds and redacts personal data in Italian documents with an AI that runs only on your computer.

Download See how it works

referto_rossi.pdf

Laboratorio Analisi San Frediano s.r.l.
Via Guelfa 41, 50129 Firenze · Tel. 055 238 1947

Paziente: ROSSI GIULIA
Data nascita: 12/03/1984
Codice fiscale: RSSGLI84C52D612K
Prelievo: 28/10/2026, ore 7:40
Richiedente: Dott. Marco Bianchi

Esami ematochimici
Esame	Risultato	Riferimento
Emoglobina	13,8 g/dL	12,0–16,0
Glicemia	92 mg/dL	70–100
Colesterolo totale	214 mg/dL	< 200
Ferritina	48 ng/mL	15–150

Referto inviato a giulia.rossi84@libero.it il 29/10/2026.

Every case file is full of names

Shelves in the State Archive of Pescia: paper folders tied with ribbons, with names and years handwritten on the spines

Medical reports, contracts, minutes, payslips. Before you pass a document to a consultant, a colleague or another AI tool, those names have to go. Doing it by hand takes hours, and something always slips through.

Wi‑Fi off. It works.

The AI model runs on your computer, locally with Ollama. Try turning the network off: anonymization carries on just the same, because your documents never leave your computer.

Wi‑Fi Off

How it works

First, pick two folders: the one with your documents and the one where the anonymized copies go.

Source Folder /Users/giulia/Documenti/Pratiche 2026 Destination Folder /Users/giulia/Documenti/Pratiche anonime
- referto_rossi.pdf2 pages
- contratto_affitto.docx5 pages
- verbale_assemblea.pdf6 pages
- busta_paga_ottobre.pdf1 page, scanned
- note_colloquio.txt3 KB
Then press Start. The app reads one file at a time and tells you how far along it is.

Start PDF · DOCX · TXT

Processing documents...58%
Current file: contratto_affitto.docx
When it’s done, open the folder with the copies. Every piece of data it found is replaced by its label.

contratto_affitto.docxDone! 5 of 5 documents

Il sottoscritto [NAME], nato il [DATE_OF_BIRTH], codice fiscale [FISCAL_ID], proprietario dell’immobile in [ADDRESS], concede in locazione a [NAME] l’appartamento al secondo piano, composto da tre vani e servizi.

Il canone mensile è di € 850, da versare entro il giorno 5 di ogni mese sul conto [IBAN]. Per comunicazioni: [EMAIL], [PHONE].

The app, up close

Doc AnonymizerProtect your sensitive data locally.

Source Folder…/Pratiche 2026

Destination Folder…/Pratiche anonime

Ready to anonymizeConfigure your folder paths to start processing your documents securely.Start

PDF · DOCX · TXT

gemma4:e2b · local engine ready

Questions

Is it really offline?

Yes, as far as your documents go. The app only goes online for two things that have nothing to do with them: downloading the AI model the first time and checking for a new version at startup.

What computer do I need?

Windows 10 or 11, macOS 11 or later, or 64-bit Linux. You need 8 GB of RAM (16 recommended) and about 10 GB of free disk space. Any 64-bit processor works, Apple Silicon included. You don’t need a graphics card.

How long does it take?

A few seconds per page on a recent computer. It depends on the processor, since the model runs on the CPU.

Does it catch everything?

It catches a lot, but it isn’t infallible: it’s a small model running locally. Tax codes and dates of birth get an extra check based on fixed rules. Before you share a sensitive document, look it over anyway.

Does it work with English documents?

It’s built for Italian: the model’s instructions and the automatic checks are written for Italian documents and formats. Results in other languages haven’t been tested.

Scanned PDFs too?

Yes. If a page has no text, the app reads it with Italian OCR and redacts the words right in the image.

I have another question

Write to me through the contact form and I’ll reply by email as soon as I can.

How much does it cost?

Nothing. Doc Anonymizer is open source under the MIT license. The app downloads the AI model on first launch.

Download Doc Anonymizer

For macOS (.dmg), Windows (.exe) and Linux (.AppImage). On first launch it downloads the 7.2 GB AI model, then works offline.

Get the latest version

Remove the names. Keep the document.