Legal
Contracts, briefs, exhibits: anonymize before the AI and privilege stays intact.
100% localno trackerno file sent
Use AI without exposingyour documents.
Pull the Wi-Fi: nothing stops.
Anoni detects the sensitive data in your documents and swaps it for pseudonyms. The text still reads naturally for an AI, and stays reversible. Everything runs on your Mac or PC.
FreemacOS, Windows & Linux
Real capture. Nothing left the machine.
Real example
Before, after. Drag the handle.
A real proof-of-address letter run through the app. On the left, the review with its detections. On the right, the PDF as it comes out.
Review · 16 detectionsExported · redacted
Everything is caught
Every sensitive value is detected and highlighted by category.
You stay in control
Add, remove or draw your own region to redact.
Truly removed
In the exported PDF the masked text is stripped from the file. Not just hidden under a rectangle.
How it works
Document → Anoni → AI → decode.
One click to anonymize, one click to decode. No copy-pasting by hand, no unreadable tokens to splice back in.
- 01
Your document
Open a PDF, DOCX, Excel, email, TXT, Markdown, CSV or image in Anoni. It doesn’t move off your machine.
- 02
Anoni anonymizes
A French model (CamemBERT) and business rules flag the sensitive data, offline. They swap it for believable fakes.
- 03
ChatGPT, Claude, Copilot
You paste the anonymized text into the AI of your choice. It sees names that look real, never yours.
- 04
Decode the reply
You paste the AI’s reply back into Decode, and Anoni puts your real data back in place, from the encrypted vault.
Jean DupontMarc LeroyThe AI reads a realistic name, not a token.
Who it’s for
For people who can’t afford a leak.
Roles bound by confidentiality or GDPR who want to use AI without handing over their files.
HR
Résumés, personnel files, interview notes: AI helps without seeing employee data.
Healthcare
Reports, patient letters: health data leaves before any analysis.
Public sector
Administrative files, citizen letters: a sovereign tool that stays on the machine.
Features
Made for real working documents.
Contracts, letters, HR files: Anoni anonymizes what it should. You decide the rest.
Believable fake names
“Jean Dupont” becomes “Marc Leroy”, if you want it. The default is a ⟦PERSON·1⟧ token, safer in front of an AI. The vault puts everything back afterward.
Jean DupontMarc Leroy
Anonymization report (GDPR)
A PDF generated on your machine: categories, counts, exclusions, SHA-256 fingerprint, version. No personal data inside. It’s the record you file to show what was done.
CategoriesCountsExclusionsSHA-256Version
Personal dictionary
Your own always-mask list: client names, projects, internal references. Whatever model runs, they get caught.
Copy for the AI
One click: Anoni scans, replaces, copies. You paste into the AI, then paste its reply into Decode.
Redaction areas
Draw a rectangle over a signature, a stamp, a photo. In the exported PDF it’s opaque black.
Manual selection
A word slipped past detection? Select it, and it’s masked everywhere in the document.
11 types of data caught.
The French model (CamemBERT) and business rules work across PDF, DOCX, Excel, email, TXT, Markdown, CSV and images. Local OCR handles scanned PDFs and images.
NamesSIRET / SIRENOrganizationsLocationsAddressesEmailsPhone numbersIBANNIRDatesSecretsOCR · scanned PDFs
Detection doesn’t replace a read-through: on a sensitive document, check behind the tool before you send it.
Try it on one of your own documents.
Download
Free · no card · no tracker · 100% local
Email
Anoni reads your email. And says what it didn’t open.
Drop an .eml. Anoni reads what your mail client shows: headers, body, forwarded message. Not the attached files.
share-transfer.emlHandled locally
From
To
Cc
SubjectShare transfer
Attached message
Attachments
- draft-agreement.pdfnot opened
- id-documents.pdfnot opened
Anoni doesn’t open them.
It writes their names and their number into the text, nothing else.
What you get back is the anonymized text of the message, not an .eml. Outlook’s .msg is not supported. Word, Excel, PDFs and images come back in their own format.
Redaction
Names stop here.
The text is removed, not hidden.
Security
Your documents never leave.
All the work happens on your machine. It’s not a box to tick. It’s the only way Anoni runs. Pull the Wi-Fi: nothing stops.
99.0% of sensitive characters covered · 94.8% strict recall
Everything stays on your machine
Detection and anonymization run locally. No document or excerpt is sent online. Only the very first launch downloads the engine, once.
Reversible, but encrypted
The mapping between fake name and real value is encrypted with AES-256-GCM, derived from your passphrase. Without it, nobody decodes. You included.
Two modes, your call
Reversible pseudonymization through the vault, or plain redaction: a PDF with real black bars and no way back.
No trace of your documents
One email at activation, a license check at launch. No tracker, not a single file collected.
Frequently asked
What people ask us most.
Is Anoni GDPR-compliant?
Everything stays local and each run produces an anonymization report with no personal data, ready to keep on file. On a sensitive document, read it through first. The tool helps. It doesn’t decide for you.
What about HDS or ISO 27001 certifications?
They cover a hosting provider: how a company keeps your data on its servers. Anoni hosts nothing. Your documents stay on your machine, so there is no server to certify.
Is Anoni open source?
The app, no. But the models that do the detection are open (Apache-2.0, MIT): you can see what reads your documents.
The next document you hand to an AI, run it through Anoni first.
Free, on Mac, PC or Linux. A Pro edition is being considered.
No cardno tracker100% local