Short version: the emails you open here are parsed on your own device and are never sent to us — we couldn't read them if we wanted to.
When you drop an .eml, .emlx or .msg file into the viewer, it is read and parsed by JavaScript running in your browser. The file's contents are never transmitted to this site's servers or anyone else's — the site is static pages with no upload endpoint. Everything lives in your browser's memory for the session and is gone when you close the tab. You can verify this: load the page, disconnect from the internet, and the viewer keeps working.
No accounts, no sign-ups, no comments, no forms. We don't know your name or email address, and we never see the names, contents or attachments of the files you open.
This site may use privacy-light aggregate analytics (Google Analytics and Microsoft Clarity) to see which pages get visited and whether the tool works well. Those tools see standard visit data — pages viewed, browser type, approximate region — and never the contents of any file you open, which stay on your device by design.
This site may show ads in the future through providers like Google AdSense. Those providers can use cookies to serve relevant ads based on your visits here and elsewhere. You can opt out of personalized advertising through Google Ads Settings. Ad providers never receive the contents of files you open — those never leave your browser.
Emails you open may contain links, and some pages here link out to other sites. Once you click through, the destination's own privacy policy applies — EML Tool has no control over what those sites do.
Last updated: July 24, 2026.