Sensitive Data Pseudonymizer
Replace personal and sensitive identifiers with reversible placeholders before sending text to AI models.
0
Replacements
0
Emails
0
Phones
0
Cards
0
Persons/IPs
Pseudonymized text
Mapping JSON
Restore mode
Restore error: Unexpected end of JSON input
About This Tool
Sensitive Data Pseudonymizer replaces personal data with deterministic placeholders so you can safely share text with AI systems while keeping reversible local mapping.
Frequently Asked Questions
Is restore reversible?
Yes, if you keep the mapping JSON generated for that text.
Is detection perfect?
No. It catches common patterns and should be reviewed manually for edge cases.
Is data uploaded?
No. Pseudonymization runs fully in your browser.
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Before This Tool
JSON Output RepairerRepair malformed AI JSON outputs and recover parser-safe structured data.JSONL Batch SplitterSplit large JSONL datasets into chunked files by line count or byte size limits.Prompt A/B Test MatrixGenerate deterministic prompt variant matrices across tone, length, and output format.
Next Step Tools
Prompt Policy FirewallScan prompts for PII, secrets, and injection patterns before sending data to AI models.Prompt Security ScannerScan prompts for secret leakage, PII, and injection-style phrases before sending to AI.JSON Output GuardValidate AI JSON outputs against schema before downstream parsing or automation.