SafePrivacyMask.dev
Free Chrome extension that masks emails, phone numbers, API keys, and custom terms locally before text is sent to AI tools.
Free Chrome extension that masks emails, phone numbers, API keys, and custom terms locally before text is sent to AI tools.
This page is designed to help you find out whether SafePrivacyMask.dev is good and if it is the right choice for you.
Safe Privacy Mask is a free Chrome extension that masks sensitive information directly in browser input fields before it is sent to ChatGPT, Claude, Gemini, or other web apps.
Preset detection covers common formats such as email addresses, phone numbers, credit card numbers, API keys and tokens, IP addresses, and region-specific identifiers. Custom words and regular-expression rules can replace customer names, project names, and other terms you register.
Masking runs locally in the browser; the original text is not uploaded to an external masking service. It can run automatically on Enter/send. No account, sign-up, or subscription is required.
Listed in
Local Processing
Sensitive information is masked entirely in the browser.
AI Privacy
Masks sensitive information in browser input fields before it is sent to AI tools such as ChatGPT, Claude, or Gemini.
No Account Required
Free to use with no sign-up or subscription.
Automatic Before-send Masking
Can automatically mask sensitive text in supported input fields when Enter or Send is used.
Custom Words & Regex Rules
Define replacement rules for customer names, project names, internal terms, or custom patterns.
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Choose Safe Privacy Mask if you want lightweight, free protection against accidentally sharing sensitive text with AI tools, without setting up a cloud service or an enterprise security platform. Masking runs locally in your browser, and custom rules let you cover terms specific to your work.
It is an aid for individual browser workflows, not a replacement for organization-wide DLP, access controls, or approval processes.
Safe Privacy Mask combines local browser-based masking with preset detection and custom replacement rules. It replaces sensitive text in input fields before it is sent to AI tools, without uploading the original text to an external masking service. Users can add customer names, project names, custom words, or regular-expression rules. The extension is free and requires no account or subscription.
People who use ChatGPT, Claude, Gemini, and other web-based AI tools with work material such as emails, support messages, logs, code, and customer or project information. It is especially useful for individuals and small teams who want to reduce accidental disclosure while keeping masking local to their browser.
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