Linx

Privacy Policy

Linx - AI Reply & Post Assistant for LinkedIn & X

Last Updated: April 5, 2026

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Overview

Linx is a browser extension that helps you generate AI-powered replies and posts on LinkedIn and X (Twitter). We are committed to protecting your privacy and being transparent about how data is handled.

Key Principle: Your data stays on your device. We do not operate servers, collect analytics, or track your activity.

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Data Collection

What We Store Locally

All data is stored exclusively on your device using Chrome’s secure storage APIs:

Data Type	Storage Location	Purpose
API Key	chrome.storage.sync	Authenticate with OpenRouter
Profile Answers	chrome.storage.sync	Personalize AI-generated content
System Prompts	chrome.storage.local	Customize reply/draft generation
Model Preferences	chrome.storage.sync	Remember your model and temperature settings
OpenRouter Model Cache	chrome.storage.local	Store fetched model list and free/paid labels

What We Do NOT Collect

• No personal information is sent to us
• No analytics or telemetry
• No browsing history
• No tracking cookies
• No server-side data storage

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Data Sharing with Third Parties

AI API Provider

When you click “AI Reply” or “AI Draft”, the following data is sent to OpenRouter:

Sent to OpenRouter API:

• The text content of the post you’re replying to
• Author name/handle of the post (for context)
• Images attached to the post (if any, up to 2)
• Your personalized system prompt (based on your profile answers)
• Your “brain dump” text (for draft generation)

Your API key is sent directly to OpenRouter to authenticate requests. We never see or store your API key on any server.

AI Provider Used

Provider	Endpoint	Privacy Policy
OpenRouter	openrouter.ai	OpenRouter Privacy & Terms

Important: Data sent to OpenRouter is subject to OpenRouter’s privacy policy and terms. We recommend reviewing them before use.

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Permissions Explained

Linx requests the following Chrome permissions:

Permission	Why It’s Needed
storage	Save your settings, API keys, and prompts locally
activeTab	Inject AI buttons only on LinkedIn/X tabs you’re viewing
scripting	Insert generated replies/drafts into text fields

Host Permissions

Domain	Purpose
linkedin.com, x.com, twitter.com	Inject content scripts for AI buttons
licdn.com, pbs.twimg.com	Fetch post images for AI context
openrouter.ai	OpenRouter API calls

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Data Security

How Your Data is Protected

1. Local-Only Storage: All sensitive data (API keys, profile) is stored in Chrome’s encrypted storage, never transmitted to our servers
2. Direct API Calls: Requests go directly from your browser to AI providers—no intermediary servers
3. No Persistence: Post content is processed in memory and not stored after generation
4. HTTPS Only: All external communications use encrypted HTTPS connections

API Key Security

• API keys are stored in chrome.storage.sync, which is encrypted by Chrome
• Keys are only transmitted to the respective AI provider’s API endpoint
• We recommend using API keys with appropriate usage limits

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Your Rights & Controls

You Can:

• Delete all data: Uninstall the extension to remove all stored data
• Clear settings: Use Chrome’s extension settings to clear storage
• Edit/delete profile: Modify or remove your profile answers anytime via the popup
• Revoke API keys: Delete your API keys from the extension settings
• Use without personalization: The extension works with default prompts if you skip onboarding

Data Retention

• Local data: Persists until you clear it or uninstall the extension
• AI provider data: Subject to each provider’s retention policy (see their privacy policies)

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Children’s Privacy

Linx is not intended for use by children under 13 years of age. We do not knowingly process data from children.

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Changes to This Policy

We may update this privacy policy from time to time. Changes will be reflected in the “Last Updated” date above. Continued use of the extension after changes constitutes acceptance of the updated policy.

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Open Source

Linx is open source software. You can review exactly how data is handled by inspecting the source code:

• Repository: GitHub
• License: MIT

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Contact

If you have questions or concerns about this privacy policy:

• GitHub Issues: Report an issue
• Email: feedback.linx@gmail.com

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Summary

Question	Answer
Do you collect my data?	No
Do you have servers?	No
Where is my data stored?	Only on your device
Who sees my posts?	Only the AI provider you choose
Can I delete my data?	Yes, anytime
Is the code auditable?	Yes, it’s open source

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This privacy policy is effective as of March 24, 2026.