1 Data Collection

midler does not collect, transmit, or store any personal data on external servers operated by us. We have no backend analytics, no telemetry, and no tracking.

2 Data Stored Locally

The following data is stored locally on your device using Chrome's built-in storage APIs:

• User preferences — selected AI model, theme, language, prompt rules, and other settings (via chrome.storage.sync)
• API keys — your AI provider API keys are stored locally and never transmitted to any server other than the respective AI provider you selected
• Conversation history — chat messages are stored locally (via chrome.storage.local) and can be deleted by the user at any time
• Cached images — generated or attached images stored in IndexedDB, accessible only to the extension

3 Data Sent to Third Parties

When you use midler's AI features, your input (text, images, documents) is sent to the AI provider you have configured:

Data is sent only when you explicitly initiate an AI action (sending a message, translating text, etc.). No background data transmission occurs.

4 Enterprise Server (Optional)

If your organization uses midler with an enterprise server, the following data may be exchanged with your organization's server:

• Login credentials (username/password) for authentication
• Profile settings and policies pushed from the server

This feature is opt-in and only activated when a user manually configures a server URL and logs in.

5 Web Page Access

midler accesses web page content only when you explicitly request:

• Page translation — reads the current page's text content to translate it
• Page summarization — reads the current page's text content to generate a summary
• Writing assistant — injects a floating UI overlay on the current page

Page content is processed locally or sent to your configured AI provider. It is never sent to our servers.

6 Permissions

• sidePanel — displays the main chat interface
• storage — saves settings and conversation history locally
• activeTab — reads page content for translation/summarization upon user request
• scripting — injects the writing assistant and page translation features
• contextMenus — adds right-click menu options for quick AI access
• host_permissions (all URLs) — enables page translation on any site and API calls to AI providers

7 Data Retention & Deletion

All data is stored locally. You can delete your data at any time by:

• Clearing conversation history from the extension's chat interface
• Resetting settings from the extension's settings page
• Uninstalling the extension (removes all local data)

8 Children's Privacy

midler is not directed at children under 13 and does not knowingly collect data from children.

9 Changes to This Policy

We may update this privacy policy from time to time. Changes will be reflected in the "Last updated" date above.

10 Contact

If you have questions about this privacy policy, please contact us through one of the following channels:

• Contact form on our website
• GitHub Issues