Repository navigation
Home
github-actions[bot] edited this page Oct 19, 2026
·
2 revisions

Unmask is a free Chrome extension that shows what a suspicious email is really hiding: the real sender, where every link goes, hidden text, trackers and risky attachments, explained in plain language.
This guide is for everyone, no technical background needed. It covers installing Unmask, reading its report, setting up the optional checks, and fixing common problems.
-
Download
unmask-chrome-<version>.zipfrom the latest release (under Assets) and unzip it. -
Load it: open
chrome://extensions, switch on Developer mode, click Load unpacked, and pick the unzipped folder (the one containingmanifest.json). - Use it: reload Gmail, open an email and click the Unmask icon.
Full steps and common errors: Install.
- Install
- Your first check
- Reading the report
- Hover to see it in the email
- Setting up VirusTotal
- Setting up urlscan.io
- Tracing redirects
- Emails from Outlook and other apps
- Settings
- Troubleshooting
- FAQ
- What Unmask checks: every check and its points
- Free limits and costs: VirusTotal, urlscan.io and more; free keys are never charged
- Privacy policy · Security policy · Contributing
Also on the website: praneeth132006.github.io/Unmask.
This page is generated from docs/USER_GUIDE.md. Edit it there, not in the wiki.
Unmask · MIT licence · Report a problem
Get started
Optional checks
More
Reference