PromptShield

by jadenseangmany@gmail.com · Privacy & Security

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

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

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#368K

#277K among extensions

Version

1.0.0

updated 2 Mar 2026

Users

monthly, 8 months

Latest, 15 Oct 2026: 2 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About PromptShield

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. 🛡️ 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 🔒 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.