Input text
Alice emailed Bob.
THE PRIVACY BOUNDARY
Send useful data to AI without sending the identity with it.
Pseudonymize names, emails, locations and other identifiers before prompts and structured payloads reach LLM providers or other external systems.
Your application
"Summarize support history for Alice Rossi.
[email protected] has disputed invoice INV-204."
"Summarize support history for PERSON_01.
EMAIL_01 has disputed invoice INV-204."
OpenAI / Anthropic / External API
Built for the boundary between your data and external systems.
AI
CRM → pseudonymize.io → OpenAIAnalytics
Database → pseudonymize.io → Data warehouseSupport
Customer records → pseudonymize.io → Third-party toolsPredictable transformations, not black-box masking.
Control how identifiers are detected, replaced and kept consistent across your data.
Preserve identity relationships
The same identifier can map to the same pseudonym within a defined scope, so downstream systems keep useful relationships without receiving the original value.
Alice opened ticket #182
Alice requested a refund
PERSON_01 requested a refund
Alice requested a refund
↓
PERSON_01 opened ticket #182PERSON_01 requested a refund
Keep structured payloads usable
Transform values without flattening JSON, message arrays or application-specific structures.
{
"user": {
"name": "PERSON_01",
"email": "EMAIL_01"
},
"ticket_id": "TK-4821"
}
"user": {
"name": "PERSON_01",
"email": "EMAIL_01"
},
"ticket_id": "TK-4821"
}
Choose what gets transformed
Configure entity types and transformation behavior instead of applying one irreversible redaction rule to everything.
{
"entities": [
"person",
"email",
"phone",
"iban"
]
}
"entities": [
"person",
"email",
"phone",
"iban"
]
}
Hosted API or open-source engine
Integrate the managed API for zero overhead, or run the engine locally when data must remain inside your environment.
See how the engine processes your text.
Live Interactive Sandbox Playground
Run this sample to see the engine’s output. No local fallback is used.
18 / 2000 characters
Ready to process
Pseudonymized text
Run this sample to see the engine’s output. No local fallback is used.
Inspect the handling, not the adjectives.
- Engine
- Inspect the open-source Python engine.
- Telemetry
- Structured gateway metrics exclude API request and response bodies.
- Region
- Gateway: Nuremberg, Germany