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Description
Anonymize Excel/CSV data locally before using ChatGPT or Claude. Detects PII, tokenizes it, and restores originals from AI replies. PII Anonymizer for AI - AI Privacy Layer Pseudonymize sensitive data from Excel and CSV files before pasting into ChatGPT, Claude, or any AI tool — fully local, no server. WHY YOU NEED IT Every time you paste a spreadsheet into an AI chat, you risk exposing customer names, email addresses, phone numbers, or ID numbers. AI Privacy Layer is a PII anonymization tool that removes that risk before the data leaves your browser. WHAT IT DOES • CSV anonymizer and Excel data masking — import .xlsx, .csv, .tsv, or plain text • Automatically detects PII columns (emails, phone numbers, personal IDs) with confidence scoring • Pseudonymization: replaces sensitive values with tokens like [EMAIL_0001] — consistent within your session • Copy the anonymized output to paste into any AI service • Paste the AI's reply back to restore your original values — no manual lookup needed HOW IT WORKS 1. Import your spreadsheet or paste your data 2. Review detected columns — auto-suggestions based on PII detection 3. Copy the protected output, use AI, then paste the response back to restore originals 100% LOCAL — NO SERVER All data masking happens in your browser. No data is sent anywhere. The token map is held in memory only and cleared when you close the panel. SUPPORTED FORMATS Excel (.xlsx), CSV, TSV, plain text LIMITATIONS • Session-only: pseudonymization map is not persisted between sessions • Does not inject into AI chat windows — copy/paste is intentional • Cannot detect free-text PII (names in sentences, addresses in paragraphs) PRIVACY & SUPPORT No analytics. No telemetry. No permissions beyond what the Side Panel requires. Questions or feedback: hello@lychi.se