Morse code is a method of encoding text characters as standardized sequences of two different signal durations: dots (·) — short signals, and dashes (−) — long signals. Invented by Samuel Morse in the 1830s for telegraph communication, it remains widely used in aviation, amateur radio, and emergency signaling. Each letter, number, and punctuation mark has a unique dot-dash pattern. For example, the universal distress signal SOS is · · · − − − · · · — three dots, three dashes, three dots.

Using this tool is simple and intuitive: tap briefly (less than 250 milliseconds) on the central button to input a dot (·), or press and hold (250ms or longer) to input a dash (−). The button changes color to indicate your input — blue for a short tap, orange for a long hold. After you finish inputting a letter's pattern, pause briefly (~700ms) and it will automatically decode. You can also use the Space button to manually separate letters, Backspace to undo, or use your keyboard's . and - keys.

The color change provides real-time visual feedback so you know exactly what you're inputting. When you press the button, it starts blue. If you release within 250ms, it registers as a dot. If you hold beyond 250ms, the button turns orange, indicating a dash has been registered. This dual-color system eliminates guesswork and makes learning Morse code much more intuitive, especially for beginners who are still developing their timing sense.

A dot (·) is the basic unit of time in Morse code — a very short signal or "dit." A dash (−) is three times the duration of a dot, also called a "dah." The spacing between dots and dashes within a single character is one dot-length. The gap between letters is three dot-lengths, and the gap between words is seven dot-lengths. Our tool handles letter gaps automatically using a ~700ms pause detection, so you don't need to worry about exact timing between letters — just focus on the dots and dashes.

Yes! This tool fully supports keyboard shortcuts for desktop users. Press the . (period) key to input a dot, the - (hyphen/minus) key to input a dash, Space to separate letters, and Backspace to delete the last input. This makes it extremely fast for experienced users to tap out Morse code messages without touching the mouse at all.

The tool uses a 700-millisecond pause detection algorithm. When you stop inputting dots and dashes for 700ms, the tool assumes you've completed the current character and automatically decodes it. This timing aligns well with standard Morse code letter spacing (approximately 3 dot-lengths). If you prefer manual control, you can press the Space button at any time to immediately finalize the current character. The auto-detection works reliably for most users, from beginners to experienced Morse code operators.

This tool supports the full International Morse Code character set, including all 26 English letters (A-Z), all 10 digits (0-9), and common punctuation marks such as period (.), comma (,), question mark (?), slash (/), at sign (@), exclamation mark (!), ampersand (&), apostrophe ('), plus (+), equals (=), underscore (_), double quote ("), colon (:), semicolon (;), dollar sign ($), parentheses, and hyphen. The complete reference table above shows every supported character and its Morse code sequence.