ChatGuard by Vigilnz - Community Edition icon

ChatGuard by Vigilnz - Community Edition

by Vigilnz Inc · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Real-time prompt safety scanning for LLM chat interfaces.

Users
3
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#289K
#238K among extensions
Version
4.2.0
updated 26 Jan 2026

Users

monthly, 9 months
023Jan 2026Jun 2026Oct 2026
Latest, 16 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months
012Jan 2026Jun 2026Oct 2026
Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About ChatGuard by Vigilnz - Community Edition

ChatGuard provides real-time security analysis for AI chat interfaces. It monitors prompts and responses to detect potential security threats like prompt injection, jailbreak attempts, system prompt extraction, and data exfiltration. How it works: - Analyzes text in real-time using OpenAI's API (requires your own API key) - Displays safety badges on each message showing Safe/Unsafe status with confidence percentage - Maintains a local detection log for review and CSV export - Works across popular LLM chat platforms Features: - Real-time input monitoring and message scanning - Visual safety indicators with color-coded badges - Context-aware badge placement that adapts to different chat interfaces - Local detection history with detailed logs - CSV export functionality for analysis - Customizable settings with auto-save - Toggle to show/hide visual annotations Privacy: All analysis is performed using your own OpenAI API key. Detection logs are stored locally on your device and never transmitted to external servers. The extension only accesses chat interfaces you visit and does not collect personal information. Setup: 1. Install the extension 2. Open the popup and navigate to Settings 3. Enter your OpenAI API key 4. Enable the extension 5. Visit any supported chat interface to begin monitoring ChatGuard helps you stay aware of potential security risks in your AI conversations while maintaining full control over your data.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months+2+200.0%00.00

Version history

1 versions recorded
4.2.026 Jan 2026

Details

Category
Developer Tools
First seen
26 Jan 2026
Size
1.6 MB
Languages
en
Pricing
Free
Privacy policy
vigilnz.com
Support
vigilnz.com
Extension ID
fndnpkjpiejjmfjgdfaoojlblmebpken

Permissions and risk

Elevated riskimpact 4, likelihood 2
Permissions
storageactiveTab
Site access
https://chat.openai.com/*https://chatgpt.com/*https://gemini.google.com/*https://claude.ai/*https://grok.com/*https://x.ai/*https://chat.deepseek.com/*https://www.perplexity.ai/*https://perplexity.ai/*https://api.openai.com/*

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