Mailto Link Generator

Mailto links are one of the simplest ways to let visitors contact you directly from your website or email. When someone clicks a mailto link, their default email client opens with the fields you have specified already filled in. This removes friction from the contact process and ensures emails are sent to the right address with the right context.

This generator builds properly encoded mailto URLs with support for all standard fields: recipient (to), carbon copy (CC), blind carbon copy (BCC), subject line, and message body. The tool handles URL encoding automatically, which is critical because special characters like spaces, ampersands, and line breaks need to be encoded correctly or the link will break.

Common use cases

Mailto links work great for contact pages, support buttons, feedback requests, and referral programs. You can embed them in your website HTML, in email buttons, in email signatures, or in email footers. They also work in PDFs, Google Docs, and most document formats.

Tips for effective mailto links

Keep the body text short since long URLs can cause issues in some email clients and browsers. The generally accepted maximum URL length is around 2,000 characters, and some older browsers may truncate longer URLs. If you need the recipient to fill in extensive information, consider using a web form instead and sending the submission via your transactional email system.

Pre-filling the subject line is especially useful for support requests. For example, a "Report a Bug" button could pre-fill the subject with "Bug Report" so your support team can filter and route these emails automatically. Use the BCC field to send a copy to your CRM or support ticketing system.

For email marketers, mailto links are useful in campaigns where you want subscribers to reply. A "Reply to give feedback" CTA with a pre-filled subject helps you track responses. Check your subject line before using it in the mailto link to make sure it reads well.