Mailto Generator: Recipients, Headers and Escaped HTML
Generate encoded mailto URLs and HTML email links with recipients, CC, BCC, subject, multiline body and optional numeric entities locally.
Enabling local controls…
Generator settings
No email is sent here. Clicking the test link hands its content to your mail application. BCC is visible in source; entities do not prevent harvesting or encrypt data. Up to 30 plain ASCII addresses per group; mail applications may limit URL length.
Source controls reviewed: 2026-10-18. UD5
Preview and complete output
Configure fields and generate, or load an example.
How to use this tool
Enter comma-separated plain ASCII email addresses and message text. Generate and export the URL or HTML. A separate test link opens your mail application only when clicked.
When not to use it
No email is sent here. Mail applications may ignore fields or impose URL limits. BCC addresses remain visible in link source; numeric entities do not prevent harvesting or encrypt information.