How anonymize.today Works
Deterministic, regex-based PII detection that delivers 100% reproducible results. Same input, same output—every time. No AI, no guessing, just transparent pattern matching.
Why Regex, Not AI?
Our Approach
- 100% reproducible results
- Fully auditable for compliance
- No training data required
- Transparent decision making
- Fast, predictable performance
- No model drift over time
AI/ML Approaches
- Results vary between runs
- Black box decision making
- Requires training data
- Difficult to audit
- Higher compute costs
- Model drift over time
The 10-Step Process
From input to output, here's exactly what happens to your document
Input Text
Submit your document via web interface, API, or Word Add-in
Language Detection
System identifies the document language for optimal processing
Tokenization
Text is broken into tokens for pattern matching
Pattern Matching
Regex patterns scan for 50+ entity types
Context Analysis
Surrounding text improves detection accuracy
Confidence Scoring
Each detection receives a confidence score
Entity Classification
Detected items are categorized by type
Review Results
See all detections with positions and scores
Apply Anonymization
Choose your method: Replace, Redact, Hash, Encrypt, or Mask
Output Document
Download your anonymized document
See It in Action
Try our PII detection and anonymization free with 300 tokens per month.