Does anonym.plus send my documents to the cloud?

No. anonym.plus processes all documents 100% locally on your machine. The PII detection engine (Microsoft Presidio + spaCy NLP) is bundled in the installer. No document content is ever uploaded or transmitted. Internet is only needed for account login and license activation.

What PII entity types does anonym.plus detect?

anonym.plus detects 340+ PII entity types including names, email addresses, phone numbers, postal addresses, SSNs, IBANs, credit card numbers, passport numbers, national IDs for 30+ countries, medical license numbers, ICD codes, and more. Custom regex patterns can be added for domain-specific identifiers.

Is anonym.plus fully GDPR compliant?

Yes. anonym.plus is designed for GDPR compliance. Irreversible anonymization methods (Replace, Redact, Hash) satisfy Art. 17 right to erasure. Since documents are processed locally, anonym.plus is not a data processor under GDPR Art. 28 — no Data Processing Agreement is required. The software also supports EU AI Act Art. 10 data governance for AI training datasets.

Can I reverse anonymization to get the original data back?

Yes, if you used the Encrypt operator. Encrypt uses AES-256-GCM to replace PII with ciphertext that can be decrypted with your stored key. The other operators (Replace, Redact, Mask, Hash) are irreversible by design. Use Encrypt when you need the encrypt-share-edit-decrypt workflow with collaborators.

What document formats does anonym.plus support?

anonym.plus supports PDF (up to 50 MB), DOCX (30 MB), XLSX (20 MB / 100K rows), TXT (50 MB), CSV, JSON, XML (30 MB each), and images: PNG, JPG, BMP, TIFF (10 MB). Document structure — tables, formatting, headers — is preserved in the anonymized output.

How much does anonym.plus cost?

anonym.plus uses one-time lifetime pricing with no subscriptions. Free plan: text anonymization on 1 machine. Basic: €149 (TXT files, 3 machines). Pro: €399 (all formats, batch processing, image anonymization, 3 machines). Expert: €499 (all Pro features, 5 machines, priority support). All paid plans include a 30-day money-back guarantee.

anonym.plus Desktop — Offline PII Anonymization

anonym.plus

Download Free

Processing locally on your machine

Extract — Text pulled from PDF/DOCX locally

Detect — Local NLP scans for 340+ PII entity types

Review — You see every entity, toggle each one

Anonymize — Rust engine applies operators, saves file

✗ No data sent to any server at any point in this process

Processing Pipeline

Dual-engine architecture, all running locally

Python-based NLP for detection. Rust-native operators for anonymization. Both bundled in a single installer.

Step 01

File Read

Extract text from PDF, DOCX, XLSX, CSV, JSON, XML, TXT, or images (OCR)

Local

Step 02

NLP Detection

Presidio + spaCy analyze text for 340+ PII entities with confidence scores

Local

Step 03

Anonymize

Rust-native operators: Replace, Redact, Mask, Hash, or AES-256-GCM Encrypt

Local

Step 04

Reconstruct

Rebuild document in original format with all PII anonymized and layout preserved

Local

Features

Production-grade anonymization without the cloud

Everything runs on your machine. No accounts needed for basic use. No internet required.

NLP Engine

Bundled NLP Engine

A full Presidio + spaCy NLP engine ships with the app. English is pre-installed. No Python, no setup, no dependencies. Just install and go.

Detection

340+ PII Entity Types

Detect names, emails, phones, credit cards, SSNs, IBANs, passports, tax IDs, medical records, and 330+ more across all global regions. See full reference →

Formats

7 Document Formats + Images

PDF, DOCX, XLSX, TXT, CSV, JSON, XML plus images (PNG, JPG, BMP, TIFF) with OCR text extraction in 38 languages.

Encryption

Reversible Encryption

Encrypt PII with AES-256-GCM instead of removing it. Deanonymize later with your key. Manage multiple encryption keys for different use cases.

Security

Encrypted Local Vault

Processing history, settings, and keys stored in an AES-256-GCM encrypted vault. Secured by a 24-word BIP39 recovery phrase. PIN quick-unlock for daily use. Security details →

Scale

Batch Processing

Process multiple files at once. Customizable filename patterns, summary exports (JSON/CSV), and per-entity anonymization rules.

i18n

48 Languages

Full UI in 48 languages with RTL support. 20+ NLP language models available. English bundled, additional models download on-demand.

AI Privacy

MCP Server

Connect Cursor, Claude Desktop, or other AI tools via MCP. Automatically anonymize PII before sending to AI, restore in responses.

Images

Image Redaction

OCR-based text extraction from images with visual bounding-box redaction. Customizable fill colors. Automatic EXIF orientation handling.

Anonymization Methods

Five operators, all running locally in Rust

Mix and match methods per entity type within a single document.

Method 01

Replace

Substitute with placeholder

John Smith → <PERSON>

Method 02

Redact

Remove completely

john@mail.com → ███████

Method 03

Mask

Partially hide

4111-1111-1111 → XXXX-XXXX-1111

Method 04

Hash

One-way SHA-256

Max Muster → a3f2b8c1...

Method 05

Encrypt

Reversible AES-256

secret → eyJhbGci...

Why Offline?

anonym.plus vs. cloud PII tools

The privacy case for local processing over cloud API alternatives.

	anonym.plus	Cloud PII APIs	Manual redaction
Data leaves device	Never	Always	Never
GDPR Art. 28 DPA required	No	Yes	No
340+ entity types	✓	Varies	✗
Batch processing	✓ Pro+	✓	✗
Reversible encryption	✓ AES-256-GCM	Rarely	✗
Works without internet	✓	✗	✓
Pricing	€0–499 lifetime	$/mo per request	Staff hours

Supported Formats

Process any document type — all locally

Files read and reconstructed on your machine. Never uploaded anywhere.

PDF 50 MB

DOCX 30 MB

XLSX 100k rows

TXT 50 MB

CSV 30 MB

JSON 30 MB

XML 30 MB

PNG

JPG

BMP

TIFF

OCR in 38 languages

Global Coverage

340+ PII entity types, detected offline

Country-specific entities for regulatory compliance. All detection runs on the local NLP engine.

Universal

PersonEmailPhoneLocationDateURLIP Address

Financial

Credit CardIBANSWIFT/BICBitcoinEthereum

United States

SSNITINDriver LicensePassportBank NumberDEA

Europe (DACH)

Tax IDID CardPassportSocial InsuranceDriver License

United Kingdom

NHSNINOPassportDriver LicenseUTR

Asia Pacific

My Number (JP)Resident ID (CN)RRN (KR)Aadhaar (IN)NRIC (SG)

Healthcare

Medical LicenseICD CodeNDC CodeMedicareHealth Card

Spain & LATAM

NIF/DNINIECURP (MX)RFC (MX)CPF (BR)

Detection Presets

Pre-configured for compliance standards

Start with a built-in preset or create custom ones with your own entity selection and confidence thresholds.

General PII Detection

Names, emails, phones, addresses, dates and more.

10 entity types · 0.85 threshold

GDPR Compliance

EU data protection: all GDPR-relevant personal data.

10 entity types · 0.90 threshold

HIPAA Medical

Patient data, medical records, protected health info.

9 entity types · 0.90 threshold

Financial Services

Credit cards, IBANs, tax IDs, account numbers.

10 entity types · 0.95 threshold

Multi-Language European

Entity types across EU member states and regional IDs.

9 entity types · 0.85 threshold

Custom Presets

Any combination of 340+ entity types with custom thresholds.

Unlimited · Configurable

Security & Privacy

Offline-first. Encrypted at rest. Zero-knowledge.

Your data never leaves your control. We can't access your vault — even if we wanted to.

Offline First

No Cloud Dependencies

The complete PII detection and anonymization pipeline runs on your machine. No internet connection needed. No data sent to any external server. Documents stay on your disk.

Vault Encryption

AES-256-GCM + Argon2id

Local vault encrypted with AES-256-GCM. Keys derived from your 24-word BIP39 recovery phrase using Argon2id (64 MB memory, 3 iterations). Keys zeroed from memory when locked.

Zero-Knowledge

Password Never Leaves Device

With ZK authentication, passwords derive cryptographic keys locally. Only proofs go to the server. We never see, store, or transmit your password.

Local Processing

Bundled NLP Engine

Presidio + spaCy ship inside the installer. No external API calls for PII detection. The NLP engine runs as a local sidecar process on localhost only.

Recovery

24-Word BIP39 Phrase

256 bits of entropy via standard BIP39 mnemonic. Recover your vault on any device. Optional PIN (4-8 digits) for daily quick unlock.

Deterministic

Regex + NLP, Fully Local

PII detection uses Microsoft Presidio with regex patterns and local spaCy NLP models. No cloud AI. Deterministic and fully auditable for regulatory compliance.

Languages

48 languages, all offline-capable

English NLP model bundled. 20+ additional language models available for download. Full UI in 48 languages.

EnglishDeutschEspañolFrançaisItalianoPortuguêsNederlandsPolskiРусский日本語中文한국어العربيةहिन्दीTürkçeRomânăΕλληνικάHrvatskiSlovenščinaМакедонскиSvenskaDanskNorskSuomiÍslenskaУкраїнськаLietuviųБългарскиСрпскиMagyarČeštinaSlovenčinaLatviešuEestiעבריתفارسیTiếng ViệtBahasa IndonesiaไทยBahasa MelayuFilipinoবাংলাاردوAfrikaansKiswahiliՀայերենCatalàEuskara

100% Offline — No Cloud Required

Download Free

Your documents never leave your computer. English NLP bundled — no setup required.

Windows

Coming soon

Coming Soon

macOS

Download for Apple Silicon Intel (x86_64)

Linux

Coming soon

Coming Soon

macOS 10.15+ (Apple Silicon & Intel) · Windows 10+ coming soon · Built on Microsoft Presidio · ISO 27001 infrastructure

Offline PII Anonymization Desktop App for GDPR, HIPAA & EU AI Act Compliance