Mailster

Free tool

Mailto link generator

Create a click-to-email link that opens the visitor's mail app with the recipient, subject and message already filled in. Copy it into your website, newsletter or social bio.

Separate multiple addresses with a comma.

Line breaks are preserved and encoded for you.

Your mailto link
Fill in a recipient to see your link.
Open in your mail app

Everything is generated in your browser. Nothing you type is sent to a server.

Try:

Where to use a mailto link

Anywhere you would otherwise print an email address, a mailto link lets people start a message in one click — no copying addresses or retyping subjects.

  • Websites

    Use it on contact pages, footers and pricing pages so visitors reach the right inbox.

  • Newsletters

    Add a "Reply with feedback" link that arrives with the subject already written.

  • Social bios

    Put a prefilled contact link in your bio so people can email without leaving the app.

  • Documents

    Paste it into PDFs and proposals where a clickable address beats a screenshot.

A few things mailto cannot do

  • It cannot attach files — attachments always need a real form or a reply.
  • Very long bodies can be cut off by some browsers and mail clients, so keep them short.
  • It opens the visitor's own mail app, so webmail-only users may see their browser's default handler.