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PromptShield

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Overview

Block sensitive data from being submitted to ChatGPT. Detects credit cards, SSNs, API keys, and more.

PromptShield — Protect Your Sensitive Data on ChatGPT Ever accidentally pasted a credit card number, API key, or Social Security Number into ChatGPT? PromptShield catches it before it's sent. PromptShield is a lightweight privacy extension that monitors your ChatGPT input in real-time and blocks sensitive information from being submitted. If it detects something risky, it stops the message and shows you exactly what was found; so you can edit it yourself or let PromptShield automatically redact it for you. šŸ›”ļø WHAT IT DETECTS: Credit Card Numbers — validated using the Luhn algorithm to reduce false positives Social Security Numbers (SSN) Phone Numbers Email Addresses API Keys & Secrets — OpenAI, AWS, GitHub, Stripe, and more Passwords in Plaintext ✨ KEY FEATURES: Realtime scanning of every message and paste before submission Warning overlay that highlights exactly what was detected * "Remove & Send" — automatically redacts sensitive data and sends the clean message * Per-category toggles — choose which types of data to detect * On-page status badge so you always know protection is active * One-click pause/resume directly from the ChatGPT page šŸ”’ YOUR PRIVACY MATTERS: PromptShield runs 100% locally in your browser. No data is collected, transmitted, or stored externally. No analytics. No tracking. No external requests. Works on chat.openai.com and chatgpt.com -- other LLMs/AI tools support coming soon.

Details

  • Version
    1.0.0
  • Updated
    March 2, 2026
  • Size
    25.2KiB
  • Languages
    English
  • Developer
    Email
    jadenseangmany@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

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