Synapse — Privacy Policy

Last updated: July 3, 2026

Synapse is a Chrome extension that turns web pages, PDFs, Google Docs/Slides/Sheets, and YouTube videos into searchable AI memory using Cognee's knowledge graph engine. This page explains what data the extension handles and how.

What Synapse collects

Website content

When you click "Cognify" on a page, Synapse extracts that page's readable content (via Mozilla Readability), the PDF/document/video you're viewing, and sends it to the Cognee backend you configure, tagged to the project you selected. This only happens when you explicitly trigger it — Synapse does not read or transmit pages you haven't asked it to.

Authentication information

Your Cognee API key and backend URL are stored locally in chrome.storage.local on your device. The key is sent only to your configured Cognee backend, as an X-Api-Key header, to authenticate your requests.

What Synapse does not collect

• No personally identifiable information (name, address, age, etc.) is collected by the extension itself.
• No health, financial, or payment information.
• No personal communications (email, chat, messages).
• No location or IP tracking.
• No browsing history logging — only the specific page you actively Cognify.
• No user activity tracking (clicks, keystrokes, mouse movement, scroll).

Where your data goes

Extracted content and your API key are sent only to the Cognee backend URL you configure in the extension's settings — either Cognee's hosted cloud service or a self-hosted instance you control. Synapse does not send your data to any other third party, and does not sell or share it for advertising, analytics, or any purpose unrelated to providing the memory/search feature you requested.

Local storage

Synapse uses chrome.storage.local and IndexedDB, both stored only on your own device, to hold your API key, settings, and in-progress job data. This data is never transmitted anywhere except as described above, and is removed if you uninstall the extension.

Permissions

• storage — save your API key, backend URL, and project settings locally.
• activeTab / scripting — read the content of the tab you choose to Cognify.
• tabs — detect the active tab's URL/title to route it to the right project.
• sidePanel — display the Synapse chat/memory panel.
• alarms — retry queued Cognify jobs in the background.
• host_permissions (<all_urls>) — allow Cognify to work on any page you choose, since Synapse can't know in advance which sites you'll want to save.

Changes to this policy

If this policy changes, the "Last updated" date above will be revised and, for material changes, notice will be given via the Chrome Web Store listing.

Contact

Questions about this policy or your data: codenaut26@gmail.com