Email Address Masker

Mask email addresses free online for privacy-safe display. Hides part of the username and domain while keeping the address recognizable, for screenshots or public posts.

Paste email addresses (one per line)

How to Use This Tool

Paste your email listOne address per line, or a single email

Click Mask EmailsUsername and domain get partially obscured

Copy the masked outputSafe to display publicly while staying recognizable

Email Address Masker is a free online tool that works entirely in your browser — no signup, no data uploaded, no limits.

Showing an Email Exists Without Exposing the Full Address

Tutorial screenshots, support documentation, and public forum threads sometimes need to reference an email address without exposing a real one -- either because it's someone's actual address that deserves privacy, or simply to avoid feeding automated spam-harvesting bots that scrape visible addresses from public pages.

This tool masks the username and domain portions while preserving the overall email structure (the @ symbol and domain extension), so the result still clearly reads as an email format without revealing the full original.

A Privacy Convenience, Not a Security Guarantee

This masking is designed for casual display privacy -- protecting against casual viewing and automated scraping -- rather than as a cryptographically strong anonymization technique. A sufficiently motivated person with additional context might narrow down possibilities for a masked address, which is worth keeping in mind for genuinely sensitive use cases.

Defeating Email Harvesting Bots

Spam bots routinely scan public web pages looking for the recognizable @ pattern of email addresses to harvest for spam lists. A masked email displayed for human readability -- showing the format and rough length without the exact characters -- defeats this kind of automated scraping while still communicating useful information to an actual human reader.

Frequently Asked Questions

Sometimes you want to show that an email exists and roughly what it looks like -- in a tutorial screenshot, a support ticket example, or a public forum post -- without exposing the full real address that could be scraped by spam bots or invade someone's privacy.

The masking keeps the first and last character of the username portion visible, replacing the middle with asterisks, and does something similar to the domain name, while keeping the structure (the @ symbol and the TLD) intact so it still clearly reads as an email format.

Not reliably. The masking removes specific characters, and depending on username length and common patterns, a determined person might narrow down possibilities, but it is not designed as a strong cryptographic privacy guarantee -- it's meant for casual display privacy, not high-security anonymization.

Yes, paste a list with one email per line and each gets masked independently in the output, useful when preparing a batch of examples or sanitizing a list before sharing.

Yes, this is actually one of the most practical use cases -- spam bots commonly scrape visible email addresses from public pages, and a masked version displayed for human readability defeats that automated scraping while still being meaningful to a human reader.