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
Flag concern
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

Auto Blur

5.0

Hides passwords, API keys, credit cards and emails on any webpage. 100% local — nothing leaves your computer.

API Key Manager - Secure Storage & Organization

0.0

Securely store, organize, and manage all your API keys in one place. Quick copy, search, and encrypted local storage.

Invisible Characters Tool

0.0

View, strip, normalize, or copy special/invisible characters from pasted text.

ClipSafe - Sensitive Data Protector

4.5

Protects sensitive data by automatically detecting and sanitizing API keys, passwords, and emails when pasting into AI chats.

Secret Scanner

5.0

Scan web pages for API keys or passwords

Paste Protector - Guard Sensitive Data

5.0

Automatically protects sensitive data (API keys, passwords, secrets) when pasting. Set custom rules with regex support.

YetAnotherBrowserExtension

0.0

Automatically scan websites for exposed API keys, tokens, secrets, and security misconfigurations.

Strong Password Generator

4.8

Generate strong random passwords or memorable passphrases with CSPRNG. Customize length, character sets, and separators.

Easy Encrypt

5.0

Local text encryption, decryption, Base64 encoding, and SHA-256 hashing with safer key handling

SecureIntent

4.9

Warns you before you paste API keys, tokens, or passwords into AI chats and other sites — all on-device, your text never leaves.

JS Recon & Secret Scanner

0.0

Inspect JavaScript files locally to find likely endpoints, possible secret-like strings, and available sourcemaps.

QuickPaste - Text Paste & Form Filler

5.0

One-click quick text pasting! Support card management, categories, data backup, privacy-first local storage