PromptShield
Catches personal data, secrets and card/IBAN details before they reach
PromptShield scans text for emails, phone numbers, IP addresses, API keys and tokens, private keys, credit card numbers (Luhn-validated), IBANs (checksum-validated), crypto wallet addresses, SSNs and more, then offers a redacted version safe to paste into an AI chat.
The scan is never logged or stored. Available as a web app, a Windows desktop app, and a browser extension for ChatGPT, Claude, Gemini, Copilot and Perplexity.
Source code: https://github.com/AurelioAvila/promptshield
Web...