AI assistant for safe, reliable productivity with code, collaboration, and integrations.
Secret Sanitizer
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About Secret Sanitizer
Secret Sanitizer is a browser extension that intercepts pasted content containing sensitive data before it reaches AI chat interfaces. It automatically detects and replaces API keys, tokens, credentials, and other secrets with safe placeholders while storing the originals locally in an encrypted vault. The tool works across major AI platforms including ChatGPT, Claude, Gemini, and Grok, as well as any custom websites added by the user. It operates entirely locally with no network calls, tracking, or server dependencies, using AES-GCM encryption for local storage. Users can toggle detection patterns on or off, restore original secrets from AI responses, and monitor blocked items through a stats dashboard. The extension is open-source under the MIT license and requires no dependencies or external libraries.
Key features
- Auto-detects 70+ secret patterns including API keys, tokens, and credentials
- Instant interception before secrets reach AI chat interfaces
- Encrypted local vault with AES-GCM encryption
- Smart restore for recovering originals from AI responses
- Pattern controls to toggle detection rules on/off
- Custom site protection with one-click addition
- Stats dashboard for tracking blocked items
- Backup and restore configuration as JSON
Use cases
- Preventing accidental leakage of API keys when pasting code into AI chats
- Protecting .env files and configuration files during development workflows
- Securing sensitive data like passwords and tokens in educational or collaborative AI environments
Pros
- Local processing with no network calls or server dependencies
- 70+ built-in detection patterns for various secret types
- Encrypted local vault for storing original secrets
- Smart restore feature for recovering originals from AI responses
- Open-source under MIT license with no tracking or analytics
Cons
- Browser extension only, no desktop or mobile app
- Limited to Chrome browser
- No API or programmatic access
Secret Sanitizer videos
Frequently asked questions about Secret Sanitizer
What does Secret Sanitizer do?
Secret Sanitizer is a browser extension that intercepts pasted content containing sensitive data before it reaches AI chat interfaces. It automatically detects and replaces API keys, tokens, credentials, and other secrets with safe placeholders while storing the originals locally in an encrypted vault.
Who is Secret Sanitizer for?
The tool is designed for developers, engineers, indie hackers, solo founders, security-conscious users, professionals handling sensitive data, students, and educators who frequently use AI chat interfaces and want to prevent accidental leaks of secrets.
Does Secret Sanitizer send my data anywhere?
No, Secret Sanitizer operates entirely locally with no network calls, tracking, or server dependencies. All processing and storage happen on your device, ensuring your data never leaves your machine.
How do I get started with Secret Sanitizer?
Simply install the extension from the Chrome Web Store, add it to your browser, and it will automatically intercept and sanitize pasted content containing secrets in supported AI chat interfaces and any custom websites you add.
Can I restore original secrets from AI responses?
Yes, the Smart Restore feature allows you to copy AI responses containing placeholders, and the original secrets are automatically restored in your clipboard for safe reuse.
Is Secret Sanitizer open-source?
Yes, Secret Sanitizer is fully open-source under the MIT license, allowing users to verify the code and ensure there are no hidden tracking or data collection mechanisms.
