Mailto Link Generator

How to do it

1. 1
   Fill in the boxes

   Type your numbers or pick the options you need.

2. 2
   See the result

   The answer updates right away as you change a value.

3. 3
   Use it

   Copy the result or note it down. Nothing is sent anywhere.

About this tool

Enter an address, a subject and a message. The tool builds a mailto link you can use in a button, an email signature or a website so that one click opens the visitor's mail app with everything filled in.

Where to use it

Use the link in an HTML anchor, a button or a QR code. Many email apps and phones open their default mail client.

Special characters

Spaces, line breaks and symbols are encoded for you, so the message survives in the link.

Limits

Very long messages may be cut by some mail apps. Keep the prefilled text short.

Tips for best results

Check every box before you rely on a result, because one wrong digit changes the whole answer. Use the exact figures from your payslip, bill, certificate or contract, and keep a note of the date you calculated. Rates, thresholds and rules change from time to time, so for tax, fees and legal matters treat the output as an estimate and confirm with the official source named on this page. You can run as many scenarios as you like; nothing is saved or sent, and refreshing the page clears the boxes.