Just type letters, numbers and punctuation into the top box and the Morse code will appear in the bottom box with a "#" if the character cannot be translated. If you want to translate prosigns, enter them as
You can type Morse code into the top box using "." for a dot and "-" or "_" for a dash. Letters are separated by spaces and words by "/" or "|". The text translation will appear in the bottom box. If a letter cannot be translated a "#" will appear in the output.
The "play", "pause", "stop" and "loop" buttons control the playback. You can choose between hearing the sound, seeing a flashing light, or having your phone vibrate using the "Sound", "Light" and "Vibrate" checkboxes. The vibrate option may only appear on a phone. There are also advanced options to control the pitch and speed. The "Farnsworth speed" is useful when learning Morse code as it can be set lower than the other speed in order to stretch out the spaces between characters and words whilst keeping the Morse characters fast.