Online Morse Code Keyer

How to use it

• Paddles: hold the dit paddle (Z, [ or left Ctrl) for a run of dots and the dah paddle (X, ] or right Ctrl) for dashes. The keyer times them for you at the set speed.
• Squeeze: hold both to send dit dah dit dah. C is a squeeze started on the dah paddle; so is Y, released later.
• Straight key: press the Space bar or the button for as long as each dot or dash lasts. You make the timing yourself.
• On a phone, use the on-screen paddles with two thumbs.

Iambic A or B?

Both alternate dits and dahs while you squeeze. The difference is what happens when you let go. In mode B the keyer remembers the squeeze and adds one more opposite element after you release; in mode A it stops with the element that is sending. Mode B needs less movement once you are used to it; mode A is more forgiving when you start. Try both and keep the one that feels natural.

Straight key or paddles?

A straight key is the classic up and down key: simple, but your hand makes every dot and dash. Paddles with a keyer make perfectly timed elements and tire the hand less at speed. The Morse keys guide explains the types, and a real paddle adapter that sends the left and right Ctrl keys works with this page.

Good habits

Start slower than you can read, around 15 WPM, and aim for even spacing: the gap between letters (three units) and between words (seven units) matters as much as the dots and dashes. If the decoded text runs letters together, leave longer gaps. The speed calculator shows how long each unit lasts.