Privacy Policy — SparkIn: AI Replies for LinkedIn
Privacy Policy — SparkIn: AI Replies for LinkedIn
**Last updated: March 24, 2026**
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## Overview
SparkIn is a Chrome browser extension that generates AI-powered comments on LinkedIn using your own API key. This policy explains exactly what data the extension touches, where it goes, and what we never do with it.
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## 1. Data We Do NOT Collect
The developer of SparkIn operates no backend server and collects absolutely no user data. We do not collect, store, transmit, sell, or share:
- Your LinkedIn activity, posts, comments, or connections
- Your OpenAI or Anthropic API keys
- Your persona description or settings
- Any personally identifiable information
- Usage statistics or analytics of any kind
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## 2. Data Stored Locally on Your Device
SparkIn saves your preferences using Chrome's built-in `chrome.storage.sync` API. This stores data locally in your Chrome profile and may sync across your own signed-in Chrome instances via Google's infrastructure — the same way Chrome syncs bookmarks and passwords.
The following settings are stored:
- Your chosen AI provider (OpenAI or Anthropic)
- Your API key for the selected provider
- Your selected model name
- Your persona / voice description
- Your toggle preferences (auto-post, include thread context, include post image)
**The developer has no access to any of this data.**
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## 3. Data Sent to Third-Party AI Providers
When you click "AI Reply", SparkIn sends a request directly from your browser to the AI provider you have configured (OpenAI or Anthropic). No data passes through any SparkIn server.
Depending on your settings, the request may include:
- The text of the LinkedIn post you are commenting on
- Visible comments in the thread *(only if you enable "Include thread as context")*
- An image from the post *(only if you enable "Include post image")*
- Your persona description
- Your API key *(sent as an authorization header directly to the provider)*
These requests are subject to the privacy policies of the respective providers:
- **OpenAI Privacy Policy:** https://openai.com/policies/privacy-policy
- **Anthropic Privacy Policy:** https://www.anthropic.com/privacy
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## 4. Permissions and Why We Need Them
| Permission | Reason |
|---|---|
| `storage` | Save your settings (API key, persona, preferences) locally in Chrome |
| `linkedin.com` and `licdn.com` | Read post content to generate contextual replies; inject the AI Reply button into the comment editor; fetch post images if you enable that feature |
| `api.openai.com` | Send AI generation requests directly to OpenAI using your own API key |
| `api.anthropic.com` | Send AI generation requests directly to Anthropic using your own API key |
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## 5. No Tracking, No Ads, No Analytics
SparkIn contains no tracking code, no advertising SDKs, no analytics libraries, and no third-party scripts of any kind. The only outbound network requests made by the extension are the AI generation calls described in Section 3, which go directly to OpenAI or Anthropic.
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## 6. Children's Privacy
SparkIn is not directed at children under the age of 13. We do not knowingly collect any information from children.
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## 7. Changes to This Policy
If this policy changes materially, we will update the "Last updated" date at the top. Users can always find the current version at this URL.
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## 8. Contact
For any privacy-related questions, contact me on github:
https://github.com/motexture42/
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*SparkIn is an independent project and is not affiliated with LinkedIn, OpenAI, or Anthropic.*