SecretGuard

Tracking since Apr 18, 2026.

Changelog

• Apr 18, 2026
  description

  Protect Your Secrets While Talking to ChatGPT
  
  Ever pasted something sensitive—like your credit card number, API key, or personal ID—into ChatGPT by mistake? You’re not alone.
  
  That’s exactly why we built SecretGuard, a smart Chrome extension that automatically detects and masks your sensitive data before it reaches the AI.
  
  Imagine chatting freely with ChatGPT without worrying about exposing private info. SecretGuard scans your input in real time, finds confidential data (like PII, access keys, and tokens), and replaces it with secure placeholders — keeping your conversations safe without breaking the context.
  
  Currently supports ChatGPT
  Masks PII and sensitive keys instantly
  Works automatically—no setup needed. Just Install
  
  If you’re a frequent ChatGPT user who values privacy, SecretGuard is your quiet companion—protecting your data while you stay focused on what matters.

  Protect Your Secrets While Talking to LLMs
  
  Ever pasted something sensitive—like your credit card number, API key, or personal ID—into ChatGPT by mistake? You’re not alone.
  
  That’s exactly why we built SecretGuard, a smart Chrome extension that automatically detects and masks your sensitive data before it reaches the AI.
  
  Imagine chatting freely with ChatGPT without worrying about exposing private info. SecretGuard scans your input in real time, finds confidential data (like PII, access keys, and tokens), and replaces it with secure placeholders — keeping your conversations safe without breaking the context.
  
  Currently supports ChatGPT
  Masks PII and sensitive keys instantly
  Works automatically—no setup needed. Just Install
  
  If you’re a frequent ChatGPT user who values privacy, SecretGuard is your quiet companion—protecting your data while you stay focused on what matters.

• Apr 18, 2026
  short_description

  Replaces the user sensitive data into masked format if their message contains PII data.

  Automatically detects and masks sensitive data (PII, API keys, secrets) across AI chat platforms.

• Apr 18, 2026
  host_permissions

  *://chatgpt.com/*

  *://chatgpt.com/*, *://claude.ai/*, *://gemini.google.com/*, *://perplexity.ai/*, *://copilot.microsoft.com/*

Permissions & access

Permissions

storage

Host access

*://chatgpt.com/*, *://claude.ai/*, *://gemini.google.com/*, *://perplexity.ai/*, *://copilot.microsoft.com/*

Screenshots

Similar extensions

Alternatives to SecretGuard, ranked by description similarity.

SecureGPT: Privacy Protection for AI Chats

Protect your privacy in AI chats! Auto-detects and removes emails, credit cards, SSNs with placeholders on ChatGPT, Claude & more.

12

PromptGuard

Protect your personal data while chatting with ChatGPT and other major AI platforms in your browser.

—

PromptShield

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

—

GuardGPT

Protect sensitive data before it reaches ChatGPT

—

★ 5.0

GPT Guardian

Detects and alerts the user when possible sensitive data (credit card #, SSN, phone #, or email address) is entered into ChatGPT.

6

★ 5.0

Caviard – Redact personal information (PII) in ChatGPT and DeepSeek

Caviard automatically replaces personal information (PII) before your prompt is sent to AI services. 100% locally.

292

★ 5.0

Secure Flow

Prevent accidental sharing with AI chatbots. Blocks emails, phone numbers, addresses, and API keys.

4

ClipSafe - Sensitive Data Protector

Protects sensitive data by automatically detecting and sanitizing API keys, passwords, and emails when pasting into AI chats.

—

★ 4.5