Realistic pseudonyms
“Jean Dupont” becomes “Marc Leroy”, not a token like ⟦PERSON·1⟧. The document stays natural for an AI, and stays reversible through the vault.
Jean Dupont→Marc Leroy
100% local · open-source · sovereign
Anoni detects the sensitive details in your documents and replaces them with realistic pseudonyms. The text stays natural for an AI — and stays reversible. Everything happens on your Mac or PC.
Free · macOS & Windows · no account
Real capture — local detection, no data ever left the machine.
How it works
Three steps. No manual copy-paste.
01
Local detection
A French model (CamemBERT) and business rules flag sensitive data — entirely offline.
02
Copy for the AI
One click scans the document, pseudonymizes it, and copies the text. You paste it into your AI.
03
Decode on your machine
Paste the AI’s reply into Decode. Anoni restores the real data from your vault.
Jean Dupont→Marc Leroy·The AI reads a realistic name, not a token.
Real example
From the document you received to the redacted export
A capture of the app, real detection: an employment verification letter. Drag the handle — review on the left, the exported PDF on the right.
Review — every detectionExported — redacted
The masked text is permanently removed from the exported file — not just covered.
Features
Built for professional documents.
Contracts, letters, HR files: anonymize what matters and stay in control of the rest.
Anonymization report (GDPR)
A PDF generated locally: categories, counts, exclusions, SHA-256 fingerprint, version — and never a single piece of personal data. Your compliance record to keep on file.
CategoriesCountsExclusionsSHA-256Version
Personal dictionary
Terms that are always anonymized: client names, projects, internal references. Caught no matter which models run.
Copy for the AI
One click: scan, pseudonymize, copy. You paste it into your AI, then paste the reply into Decode.
Redaction areas
Draw a rectangle over a signature, a stamp, a photo. Redacted under opaque black in the exported PDF.
Manual selection
Select a word the detection missed. It’s anonymized everywhere in the document.
Security
Sovereign by design.
Your documents never leave your machine. That’s the only way it works.
100% local
Detection and anonymization run on your machine. Pull the Wi-Fi: everything keeps working. (Only the first launch downloads the engine.)
Encrypted vault
The pseudonym → real-data mapping is encrypted with AES-256-GCM, derived from your passphrase. It stays on your machine.
Two modes
Reversible pseudonymization through the vault, or redaction: a PDF exported with real black bars.
No telemetry
No account, no tracker, no usage data. The detection models are open models (Apache-2.0, MIT).
Detection
What Anoni catches.
A French model (CamemBERT) and business rules across your PDF, DOCX, TXT and Markdown files. Local OCR for scanned PDFs.
NamesSIRET / SIRENOrganizationsLocationsAddressesEmailsPhone numbersIBANNIRDatesSecretsOCR · scanned PDFs
Detection is not a guarantee of compliance: a human review remains essential for sensitive documents.
Pricing
Free today, no subscription.
Every current feature in Anoni is free. A Pro edition, with advanced features, is under consideration.
Anoni
Freeforever
Everything Anoni does today — no limits, no account.
- French detection: names, SIRET / SIREN, organizations, locations, addresses, IBAN, NIR…
- Local model (CamemBERT) and a catalog of vetted models
- Realistic pseudonyms and a reversible encrypted vault
- PDF redaction with black bars and manual areas
- Personal dictionary, profiles and a local GDPR report
- OCR for scanned PDFs · French and English
- macOS and Windows · signed updates
Coming soon
Pro
Coming soonin the works
Advanced features for the most demanding workflows.
- Everything in Anoni, nothing lost
- Local API and command line
- Watched folders (automatic anonymization)
- Additional specialized models
Download Anoni.
Free, local, on your Mac or PC. Your documents stay with you.
First launch on macOS
The app isn’t notarized by Apple yet. Right-click Anoni.app → “Open”, then confirm.
If macOS blocks it from opening, run this in Terminal:
xattr -dr com.apple.quarantine /Applications/Anoni.appFirst launch on Windows
SmartScreen may warn you during installation. Click “More info” → “Run anyway”.