Anonymization Python Packages

presidio-analyzer

An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

presidio-anonymizer

An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

ff3

FPE - Format Preserving Encryption with FF3 in Python

presidio-image-redactor

An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

presidio-structured

An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

dj-anonymizer

Anonymize django database. Big-data anonymizer. Preply team.

dp-accounting

Google's differential privacy libraries.

datafog

Offline PII firewall for AI agents and LLM apps: fast local detection and redaction, Claude Code hook, LiteLLM guardrail. Zero network calls, one dependency.

privateai-client

A python client used to interact with the Private AI's API

ferret-scan

Find and redact sensitive data before it leaks — a fast, offline CLI and Go library that detects PII, secrets, and credentials in files and streams, scores them with context-aware confidence, and redacts them format-preserving. Nothing leaves your host.

django-scrubber

Data anonymizer for Django

presidio

An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

pynonymizer

A universal tool for translating sensitive production database dumps into anonymized copies.

openscrub

Local, GPU-accelerated redaction for video & screen recordings — blur, black-box, or mosaic faces and/or any regex-matchable text. Human review, no cloud.

piighost

Reversible PII masking for LLM agents: piighost replaces personal data with placeholders before the model sees it, then restores the real values in replies and tool calls. LangChain, Pydantic AI, LlamaIndex and Claude Code integrations, plus an OpenAI/Anthropic-compatible proxy.

deutsches-ki-toolkit

Deutschsprachige KI-Infrastruktur für Dokumente, Datenschutz, Suche und RAG: deutsche PII-Erkennung mit Prüfsummen, Komposita-Zerlegung, strukturtreues Chunking, hybrides Retrieval und RAG mit geprüften Quellenangaben. Live-Demo im Browser.

anonymizeip

👤 Python library for anonymizing IP addresses

dcmanon

Fast DICOM anonymization, written in Rust. Available as library and executable. With bindings for Python and WebAssembly.

tarja

Detect and mask Brazilian personal identifiers (CPF, CNPJ, CNS, CNJ, título, CNH) in Portuguese text, with check-digit validation. For LGPD work, DLP pipelines, and stripping PII before text reaches an LLM or a RAG index. Apache 2.0, no dependencies.

pycanon

pyCANON is a Python library and CLI to assess the values of the parameters associated with the most common privacy-preserving techniques.

veil-pii

Reversible PII masking for LLM calls: mask before the prompt leaves your network, restore in the reply, streaming-safe.

pdf-anonymizer-core

CLI, Web API, and an SDK anonymizing large PDF files, Excel, Word docs, CSVs

pdf-anonymizer-cli

CLI, Web API, and an SDK anonymizing large PDF files, Excel, Word docs, CSVs

radlab-llm-router-plugins

A companion repository for llm-router containing a collection of pipeline-ready plugins. Features a masking interface for anonymizing sensitive data and a guardrail system for validating input/output safety against defined policy rules.