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Secret Paste Guard

ExtensionPrivacy & Security
Item media 1 (screenshot) for Secret Paste Guard

Overview

Warn locally when pasted or submitted text looks like API keys, tokens, private keys, cards, or recovery phrases.

Secret Paste Guard warns locally when pasted, typed, or submitted text looks like a secret, so you can review risky form submissions before credentials leak. It detects common API keys, private key blocks, JWTs, GitHub tokens, AWS access keys, Slack tokens, card-like numbers that pass Luhn checks, and recovery-phrase-like text. Paste and typing warnings are non-blocking. Form-submit warnings pause the first submit so you can review before continuing. Detection runs inside your browser. Pasted, typed, and submitted field text is never stored, sent to a server, or used for analytics. The extension stores only local settings, dismissed support-banner state, and ignored hosts in Chrome extension storage. Use it for: - Reviewing sensitive admin forms before submit - Catching accidental API key pastes - Keeping local warnings enabled on risky sites - Temporarily ignoring trusted hosts when needed Password fields are never read, and fields that look like payment card inputs are skipped during full-form scans to avoid interfering with checkout flows.

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Details

  • Version
    0.1.0
  • Updated
    June 12, 2026
  • Offered by
    El_Tomlino
  • Size
    16.02KiB
  • Languages
    English (United States)
  • Developer
    Oplištil, Tomáš
    Švermova 125/106 Liberec 46010 CZ
    Email
    oplpet95@gmail.com
    Phone
    +420 735 280 000
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.

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

Support

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