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Sidecar Sieve

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Overview

Flags supported sensitive-data patterns (keys, credentials, emails) in prompts to ChatGPT, Claude, Gemini — on-device.

Sidecar Sieve checks what you're about to send to ChatGPT, Claude, or Gemini, and flags things you probably didn't mean to paste — API keys, passwords, email addresses, phone numbers, names, addresses. You see what it found, decide what to remove, and send. Nothing leaves your browser until you say so. EVERYTHING RUNS ON YOUR DEVICE No accounts, no telemetry, no analytics. Your text is never transmitted anywhere. The detection model runs locally in your own browser. The extension makes exactly one network request in its lifetime: a one-time model download, verified against a fixed cryptographic hash before use. WHAT IT CATCHES Credentials and keys are always removed — API keys, cloud credentials, passwords, tokens. Contextual details are flagged for you to decide — names, employers, addresses, dates of birth, phone numbers, email addresses, government ID numbers. TWO REVIEW MODES Detailed review shows each item so you can pick. Quick confirm gives you a single yes/no prompt when something's flagged. WHAT IT DOESN'T DO This flags supported patterns — it isn't a guarantee that everything sensitive will be caught. It checks text you type into the message box. It does not check images, file uploads, or dictated speech. After installing, reload any ChatGPT, Claude, or Gemini tabs you already had open. New tabs are covered automatically. PERMISSIONS - offscreen: runs the detection model separately from the pages you visit - storage: saves your settings - huggingface.co: the one-time model download It does not request access to your browsing history, your identity, or any site other than the three chat sites it runs on.

Details

  • Version
    1.0.0
  • Updated
    August 4, 2026
  • Offered by
    Sidecar Tools
  • Size
    3.42MiB
  • Languages
    English
  • Developer
    Email
    simonwork378@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
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

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

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