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PromptShield - AI Prompt Security

kminnovations.dev
ExtensionPrivacy & Security
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Overview

Block API keys, secrets, tokens, and sensitive data before sending prompts in supported AI chat sites. 100% local.

PromptShield helps prevent accidental secret sharing in AI prompt boxes. It checks prompt text locally in your browser before a message is sent. When risky content is found, PromptShield can warn, block, or redact sensitive values so you can review the prompt safely. It can detect API keys, access tokens, private keys, JWTs, bearer tokens, .env-style secrets, email addresses, phone numbers, internal URLs, staging links, localhost links, custom domains, and custom watchwords. Key features: - Local detection in your browser - No backend service - No prompt uploads - No prompt history stored - Redaction before review - Normal and strict protection modes - Per-site pause controls - Custom domains and watchwords - Local scan, warning, block, and redaction counters PromptShield uses chrome.storage.local only for settings and basic counters. It does not use external AI APIs, analytics, or telemetry.

Details

  • Version
    0.1.0
  • Updated
    June 29, 2026
  • Size
    27.59KiB
  • Languages
    English
  • Developer
    KM Innovations
    India India, Karnataka 560001 IN
    Website
    Email
    kminnovations.contact@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

PromptShield - AI Prompt Security has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

PromptShield - AI Prompt Security handles the following:

Personally identifiable information
Authentication information
Personal communications
Website content

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

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

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