Mailto Link & HTML Email Button Generator
Generate encoded mailto: URL links with CC, BCC, subject lines, multi-line email bodies, and copyable HTML website buttons.
Raw Encoded Mailto URL
Valid Mailto URIWebsite HTML Anchor & Button Code
Markdown Link Format
About this tool
How to use it
- Enter the recipient's email address in the 'To Email' input field.
- Optionally specify CC or BCC addresses to carbon-copy collaborators or archiving inboxes.
- Type your desired subject line and write your multi-line message body template.
- Click 'Copy Mailto Link' or copy the generated HTML website button code for your webpage.
Why it matters
Complex mailto links containing line breaks, question marks, and symbols often break in older browsers or mobile email clients when unencoded. Properly encoding parameters following RFC 6068 ensures your pre-filled text opens flawlessly in Outlook, Gmail, Apple Mail, and Thunderbird.
When to use it
Use this link builder when designing website contact buttons, authoring email newsletter links, drafting open-source bug report templates, or configuring careers application buttons.
Good to know
Mailto parameters use URL query string syntax: ?subject=...&body=...&cc=... Line breaks are automatically converted to '%0A' or '%0D%0A' for seamless email formatting.
Common questions
How do line breaks work inside a mailto body?
Email clients interpret standard line breaks when encoded as '%0A' or '%0D%0A'. This tool automatically converts multi-line paragraph returns into compliant percent-encoded strings.
Can I specify multiple recipients in the To field?
Yes. You can separate multiple email addresses with a comma (e.g. 'alice@example.com, bob@example.com').
What happens if a user doesn't have a default email client installed?
If a user has not configured a desktop client (like Apple Mail or Outlook), their web browser usually prompts them to link Gmail, Yahoo Mail, or webmail.
Is any email content logged or sent to servers?
No. Link generation and URL parameter encoding run 100% locally in your web browser with complete privacy.