Privacy Policy
Last updated: 2026-05-25
TL;DR: CrazyCodeCat does not collect, store, or transmit any personal data. Everything stays on your device. We don't use analytics, tracking, or telemetry.
Data Storage
All data is stored locally on your device using browser built-in storage APIs:
- chrome.storage.local — User scripts, extension settings, conversation history
- chrome.storage.sync — Extension preferences synced across your devices via your browser account
- IndexedDB — Multi-AI query history and session data
- localStorage — AI Lab website preferences
None of this data is ever sent to external servers by CrazyCodeCat.
Data Transmission
The only network requests made by CrazyCodeCat are:
- Multi-AI queries: When you send a question via the Multi-AI feature, the text is typed into iframes loaded from AI service websites (ChatGPT, Claude, DeepSeek, etc.). Those services receive your text under their own privacy policies.
- Extension updates: Standard browser extension update checks (Chrome Web Store / Edge Add-ons).
- User script URLs: If you choose to install a script from Greasyfork or OpenUserJS, your browser fetches it from those sites.
CrazyCodeCat does not operate any remote servers, APIs, or analytics endpoints.
No Tracking
- No analytics or telemetry libraries are included
- No cookies are set by the extension
- No fingerprinting or user identification
- No data is shared with third parties
- No user accounts or registration required
Permissions
The extension requires certain browser permissions to function. Each permission is used solely for its intended feature:
- scripting — Inject user scripts into web pages
- storage — Save your scripts and settings locally
- tabs — Open the Multi-AI page and manage script injection targets
- sidePanel — Show the AI chat interface in your browser sidebar
- webNavigation — Detect page loads for script injection timing
- declarativeNetRequest — Remove X-Frame-Options headers to embed AI chat sites in iframes for the Multi-AI feature (only affects known AI domains)
- <all_urls> host permission — Allow user scripts to run on any page the user specifies
Third-Party Services
When using the Multi-AI feature, your query text is sent to the AI chat services you select (ChatGPT, Claude, DeepSeek, Kimi, etc.). Each service operates under its own privacy policy and terms of service. You should be logged into those services with your own accounts.
Changes
If this policy changes, the "Last updated" date at the top will be revised. Continued use after changes constitutes acceptance of the updated policy.
Contact
For questions or concerns, open an issue on our GitHub repository.