anonym.legal

By ·

Back to Features

PII Detection: 273 Entity Types

PII detection is the automated identification of personally identifiable information such as names, emails, SSNs, IBANs, and IP addresses in unstructured text. Our hybrid regex + NLP engine identifies 273 entity types, combining pattern-based precision for structured data with machine-learned models for names and context.

Try It FreeFull Entity Reference

How Detection Works

Pattern Matching

Uses carefully crafted regex patterns for each entity type, ensuring consistent and predictable results across all documents.

Confidence Scoring

Each detection includes a confidence score (0-1) based on pattern strength and context, helping you filter results.

Context Awareness

Surrounding text context improves detection accuracy, reducing false positives while catching edge cases.

Supported Entity Types

Comprehensive coverage of personal information types across categories

Personal Identifiers

  • Person Names
  • Email Addresses
  • Phone Numbers
  • Date of Birth
  • Age
  • Gender
  • Nationality

Financial Information

  • Credit Card Numbers
  • IBAN
  • BIC/SWIFT
  • Bank Account Numbers
  • Tax IDs
  • VAT Numbers

Government IDs

  • Social Security Numbers (SSN)
  • National ID Numbers
  • Passport Numbers
  • Driver's License
  • Health Insurance IDs

Location Data

  • Street Addresses
  • Cities
  • ZIP/Postal Codes
  • Countries
  • GPS Coordinates

Digital Identifiers

  • IP Addresses (v4/v6)
  • MAC Addresses
  • URLs
  • Domain Names
  • User IDs

Organization Data

  • Company Names
  • Organization IDs
  • Registration Numbers
  • Department Names

Temporal Data

  • Dates
  • Times
  • Date Ranges
  • Timestamps

International Formats

  • German ID (Personalausweis)
  • UK National Insurance
  • Spanish DNI/NIE
  • Italian Codice Fiscale
  • And 20+ more country-specific formats

Custom Entity Support

Need to detect custom patterns? Create your own entity types with regex patterns or use our AI-assisted pattern generator.

Manual Pattern Creation

Define regex patterns for proprietary identifiers like internal employee IDs, project codes, or custom reference numbers.

AI Pattern Generator

Describe what you want to detect in plain language, and our AI generates optimized regex patterns for you.

Learn about AI Entity Creation →

Start Detecting PII Today

Try our detection engine free with 200 tokens per cycle. No credit card required.

Create Free Account

Limitations / Important note

  • Detection is probabilistic and may miss entities or flag false positives; high-stakes outputs should be human-reviewed.
  • Entity coverage and accuracy vary by language, document type, and jurisdiction.
  • This page is informational and is not legal advice.

How we measure — our methodology