Muninn
A browser extension that warns you about phishing pages before you enter sensitive information.
How it works
Checks if the URL has been reported in our public phishing database. Known threats are flagged immediately.
Analyzes URL patterns and page signals to catch novel phishing attempts that aren't in the database yet.
When something feels off, you can trigger a full analysis that includes screenshot-based detection for higher confidence.
Privacy
Deep scans analyze a screenshot of the page to detect phishing. The screenshot is sent to our server for analysis but never stored—it's processed and immediately discarded.
If you choose to report a URL to Yggdrasil, the screenshot is saved as part of the report. This is always an explicit choice you make.
Get notified when Muninn launches
Create an account and we'll email you when the extension is live. You'll also be able to submit URLs and vote on reports in Yggdrasil right away.
Create an accountFree during beta. We're still figuring out pricing for deep scans. Early users will get grandfathered into the best available plan.