MOM Shield - Privacy & PII Mask for ChatGPT, Claude, Gemini, Grok

Tracking since May 10, 2026.

Changelog

• Jun 9, 2026
  short_description

  Masks PII, API keys, IBAN & credentials locally before they leave the browser to ChatGPT, Claude, Gemini, Grok. Fully offline.

  Masks PII, API keys, IBAN in text, files and images (OCR) locally before sending to ChatGPT, Claude, Gemini, Grok. Fully offline.

• Jun 3, 2026
  description

  MOM Shield helps you use AI chat tools more safely by masking sensitive data before it is sent. If you work with ChatGPT, Claude, Gemini, or Grok and sometimes paste customer data, internal notes, credentials, IDs, or private documents into prompts, MOM Shield adds a local privacy layer directly in your browser.
  
  The extension detects and replaces sensitive values on-device before they leave your computer. That means prompts and supported uploads are processed locally in the browser, without sending your raw data to a separate masking server.
  
  Why install MOM Shield?
  
  Because AI tools are fast, and that is exactly when privacy mistakes happen. A rushed prompt, an uploaded client file, a pasted API key, or a support log with personal data can be sent in seconds. MOM Shield reduces that risk by automatically masking recognized sensitive information before submission.
  
  What MOM Shield does
  
  - Automatically masks sensitive data before you send a prompt
  - Works on supported AI chat websites
  - Masks supported file uploads before they are passed to the target site
  - Supports manual mask and unmask actions in the composer
  - Optionally unmasks responses locally when history is enabled
  - Processes everything locally in the browser
  
  Supported websites
  
  - ChatGPT
  - Claude
  - Gemini
  - Grok
  - Perplexity 
  
  
  Examples of detected data
  
  - email addresses
  - phone numbers
  - IBANs
  - account numbers
  - IDs in matching contexts
  - credit card numbers with validation
  - API keys
  - access tokens
  - JWTs
  - password and secret fields
  - names, company names, and addresses in matching contexts
  
  How it works
  
  MOM Shield watches the send flow and upload flow on supported sites. Before content is submitted, detected values are replaced with masked placeholders. This helps prevent accidental disclosure of personal, financial, or credential-related information.
  
  For PDFs, the extension extracts text, masks it locally, and uploads the result as a masked text file. If a PDF cannot be safely processed or has no usable text layer, it can be blocked instead of being passed through unchanged.
  
  Key privacy benefits
  
  - Local browser-side processing
  - No external masking backend required
  - Reduced risk of sending raw personal or confidential data
  - Configurable privacy behavior for stricter workflows
  - Useful for freelancers, consultants, agencies, teams, researchers, and internal business use
  
  Why users should install it
  
  Install MOM Shield if you use AI tools in real work and want an extra privacy safeguard. It is especially useful when your prompts or uploads may contain customer details, business information, financial data, credentials, or internal documents. Instead of relying on memory and caution every time you send something, MOM Shield adds an automatic protective step.
  
  Important notes
  
  - PDF support is focused on text-based PDFs
  - Scanned PDFs without a text layer are not OCR-processed
  - If strict privacy behavior is enabled, maskable files can be blocked when processing fails
  - Automatic unmasking depends on local history being active
  
  MOM Shield is designed for people who want AI productivity without treating privacy as an afterthought.

  MOM Shield protects sensitive data when using AI tools like ChatGPT, Claude, Gemini, or Grok.
  The extension detects confidential information directly in your browser — such as names, email addresses, phone numbers, IBANs, credentials, customer data, or internal business content — and automatically masks it before it is sent to the AI.
  
  This allows users to work productively with AI without accidentally exposing sensitive information.
  
  Why users should install MOM Shield
  
  🔒 Prevents accidental data leaks in AI chats
  ⚡ Works automatically in the background
  🖥  Fully local browser-side processing — no external cloud required
  📄 Protects supported file and PDF uploads
  🛡  Provides more control, privacy, and security for everyday AI usage
  👨‍💼 Ideal for businesses, freelancers, law firms, healthcare, finance, and all privacy-sensitive industries
  
  MOM Shield makes AI usage safer — without slowing down your workflow.

• May 27, 2026
  description

  MOM Shield helps you use AI chat tools more safely by masking sensitive data before it is sent. If you work with ChatGPT, Claude, Gemini, or Grok and sometimes paste customer data, internal notes, credentials, IDs, or private documents into prompts, MOM Shield adds a local privacy layer directly in your browser.
  
  The extension detects and replaces sensitive values on-device before they leave your computer. That means prompts and supported uploads are processed locally in the browser, without sending your raw data to a separate masking server.
  
  Why install MOM Shield?
  
  Because AI tools are fast, and that is exactly when privacy mistakes happen. A rushed prompt, an uploaded client file, a pasted API key, or a support log with personal data can be sent in seconds. MOM Shield reduces that risk by automatically masking recognized sensitive information before submission.
  
  What MOM Shield does
  
  - Automatically masks sensitive data before you send a prompt
  - Works on supported AI chat websites
  - Masks supported file uploads before they are passed to the target site
  - Supports manual mask and unmask actions in the composer
  - Optionally unmasks responses locally when history is enabled
  - Processes everything locally in the browser
  
  Supported websites
  
  - ChatGPT
  - Claude
  - Gemini
  - Grok
  
  
  Examples of detected data
  
  - email addresses
  - phone numbers
  - IBANs
  - account numbers
  - IDs in matching contexts
  - credit card numbers with validation
  - API keys
  - access tokens
  - JWTs
  - password and secret fields
  - names, company names, and addresses in matching contexts
  
  How it works
  
  MOM Shield watches the send flow and upload flow on supported sites. Before content is submitted, detected values are replaced with masked placeholders. This helps prevent accidental disclosure of personal, financial, or credential-related information.
  
  For PDFs, the extension extracts text, masks it locally, and uploads the result as a masked text file. If a PDF cannot be safely processed or has no usable text layer, it can be blocked instead of being passed through unchanged.
  
  Key privacy benefits
  
  - Local browser-side processing
  - No external masking backend required
  - Reduced risk of sending raw personal or confidential data
  - Configurable privacy behavior for stricter workflows
  - Useful for freelancers, consultants, agencies, teams, researchers, and internal business use
  
  Why users should install it
  
  Install MOM Shield if you use AI tools in real work and want an extra privacy safeguard. It is especially useful when your prompts or uploads may contain customer details, business information, financial data, credentials, or internal documents. Instead of relying on memory and caution every time you send something, MOM Shield adds an automatic protective step.
  
  Important notes
  
  - PDF support is focused on text-based PDFs
  - Scanned PDFs without a text layer are not OCR-processed
  - If strict privacy behavior is enabled, maskable files can be blocked when processing fails
  - Automatic unmasking depends on local history being active
  
  MOM Shield is designed for people who want AI productivity without treating privacy as an afterthought.

  MOM Shield helps you use AI chat tools more safely by masking sensitive data before it is sent. If you work with ChatGPT, Claude, Gemini, or Grok and sometimes paste customer data, internal notes, credentials, IDs, or private documents into prompts, MOM Shield adds a local privacy layer directly in your browser.
  
  The extension detects and replaces sensitive values on-device before they leave your computer. That means prompts and supported uploads are processed locally in the browser, without sending your raw data to a separate masking server.
  
  Why install MOM Shield?
  
  Because AI tools are fast, and that is exactly when privacy mistakes happen. A rushed prompt, an uploaded client file, a pasted API key, or a support log with personal data can be sent in seconds. MOM Shield reduces that risk by automatically masking recognized sensitive information before submission.
  
  What MOM Shield does
  
  - Automatically masks sensitive data before you send a prompt
  - Works on supported AI chat websites
  - Masks supported file uploads before they are passed to the target site
  - Supports manual mask and unmask actions in the composer
  - Optionally unmasks responses locally when history is enabled
  - Processes everything locally in the browser
  
  Supported websites
  
  - ChatGPT
  - Claude
  - Gemini
  - Grok
  - Perplexity 
  
  
  Examples of detected data
  
  - email addresses
  - phone numbers
  - IBANs
  - account numbers
  - IDs in matching contexts
  - credit card numbers with validation
  - API keys
  - access tokens
  - JWTs
  - password and secret fields
  - names, company names, and addresses in matching contexts
  
  How it works
  
  MOM Shield watches the send flow and upload flow on supported sites. Before content is submitted, detected values are replaced with masked placeholders. This helps prevent accidental disclosure of personal, financial, or credential-related information.
  
  For PDFs, the extension extracts text, masks it locally, and uploads the result as a masked text file. If a PDF cannot be safely processed or has no usable text layer, it can be blocked instead of being passed through unchanged.
  
  Key privacy benefits
  
  - Local browser-side processing
  - No external masking backend required
  - Reduced risk of sending raw personal or confidential data
  - Configurable privacy behavior for stricter workflows
  - Useful for freelancers, consultants, agencies, teams, researchers, and internal business use
  
  Why users should install it
  
  Install MOM Shield if you use AI tools in real work and want an extra privacy safeguard. It is especially useful when your prompts or uploads may contain customer details, business information, financial data, credentials, or internal documents. Instead of relying on memory and caution every time you send something, MOM Shield adds an automatic protective step.
  
  Important notes
  
  - PDF support is focused on text-based PDFs
  - Scanned PDFs without a text layer are not OCR-processed
  - If strict privacy behavior is enabled, maskable files can be blocked when processing fails
  - Automatic unmasking depends on local history being active
  
  MOM Shield is designed for people who want AI productivity without treating privacy as an afterthought.

• May 27, 2026
  short_description

  Privacy for ChatGPT, Claude, Gemini & Grok. Mask PII, API keys, IBAN, and credentials locally before they leave your browser.

  Masks PII, API keys, IBAN & credentials locally before they leave the browser to ChatGPT, Claude, Gemini, Grok. Fully offline.

• May 27, 2026
  host_permissions

  (empty)

  https://chatgpt.com/*, https://chat.openai.com/*, https://claude.ai/*, https://claude.com/*, https://gemini.google.com/*, https://bard.google.com/*, https://grok.com/*, https://x.com/*, https://www.perplexity.ai/*, https://perplexity.ai/*

• May 27, 2026
  permissions

  storage

  storage, clipboardWrite

Permissions & access

Permissions

storageclipboardWrite

Host access

https://chatgpt.com/*, https://chat.openai.com/*, https://claude.ai/*, https://claude.com/*, https://gemini.google.com/*, https://bard.google.com/*, https://grok.com/*, https://x.com/*, https://www.perplexity.ai/*, https://perplexity.ai/*

Screenshots