HTML Mailto Generator

A developer-oriented tool that generates HTML mailto links for web pages, enabling quick subject prefill for emails without manual encoding.

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1,392+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

The HTML Mailto Generator creates a standards-compliant mailto hyperlink by assembling recipient(s), subject, and body values into a properly encoded href. It supports multiple recipients and optional fields, generating safe, ready-to-paste HTML.
Under the hood, inputs are validated for basic syntax, UTF-8 encoding is applied to subject and body, and the pieces are concatenated into mailto:recipient?subject=...&body=....
This tool benefits frontend developers, content editors, and support teams who embed email actions on websites. Its unique value lies in strict encoding rules, deterministic output, and explicit handling of edge cases like empty fields and special characters.
Use cases include contact pages, contact forms without server round trips, and newsletter footers where a direct email action is needed. Advanced users can incorporate CC/BCC and test links across browsers.

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How to Use

Provide recipient emails (To), separated by commas as needed.
Enter an optional subject line and an optional body text.
Include CC/BCC if supported.
Review encoding settings and ensure UTF-
Generate the snippet and copy it.
Paste into your page and test the link in a browser.

Frequently Asked Questions

Find Quick Answers

What is a mailto link and when should I use it?

A mailto link uses the mailto: URI scheme to open the user's default email client with prefilled fields such as recipient, subject, and body. It is ideal for lightweight contact actions on web pages where a server-side form is unnecessary.

Can I include CC and BCC in the generated link?

Yes. The tool supports CC and BCC by appending cc and bcc query parameters. Ensure proper encoding and keep lists concise to avoid URL length limits. Some browsers or clients may handle very long lists differently.

How do I test the generated snippet?

Embed the snippet on a test page, open it in a browser, click the link, and verify that the email client opens with the fields prefilled. If no client is available, the browser may prompt to choose an application.

What about non-ASCII characters in subject or body?

The tool applies UTF-8 percent-encoding to subject and body so non-ASCII characters are preserved and decoded correctly by email clients across locales.

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