Morse Code Translator
Type a word or sentence and see it turn into dots and dashes – or paste in Morse and reveal the message. It is a quick, free way to bring the original digital code into class.
Opens Unscramble Words 4U, our free word-puzzle site, in a new tab. Free, with no sign-up.
What it does
The Morse Code Translator on Unscramble Words 4U works both ways from one box. Enter regular letters and you get Morse; enter dots and dashes and you get letters. It recognizes which one you typed, so there is no mode to choose, and a Swap button sends the answer back into the box if you want to reverse it.
With a result on screen, you can listen to it as beeps, copy it, download it as a WAV audio file, or create a link that opens the same message for someone else. A settings panel controls the speed in wpm, pitch, volume and extra spacing between letters, and it can flash the screen or vibrate a phone in time with the sound. Besides International Morse, including accented letters, it supports the Morse systems for Greek, Russian, Hebrew, Arabic, Persian, Korean and Japanese. It works well for STEM clubs, scout troops and curious kids.
How to use it
- Open the translator and click in the input box.
- Type plain text, or type Morse using a period or dot for short signals and a hyphen for long ones. Separate letters with a space and words with a forward slash (/).
- Check the Result box. Any character without a Morse code shows up as # and is listed below, so you can see what was missed.
- Press Play to listen, then open the sound and light settings to slow it down, change the pitch or add Farnsworth spacing.
- Use Copy, Save as sound file or Share link to keep or pass along the result. Send to a friend makes a postcard link, with an optional nickname and a ‘decode it first’ challenge.
- To use another writing system, choose it from the Alphabet menu. This matters when reading Morse, because one pattern stands for different letters in each alphabet.
More tips
- A saved WAV file plays on classroom speakers with no website open.
Ideas for the classroom and homeschool
- Grades K–2Translate each student’s first name, print the dots and dashes, and have the class clap or tap the patterns – quick claps for dots, long presses for dashes.
- Grades 3–5Social studies link: explain that Samuel Morse and Alfred Vail developed the code for the electric telegraph in the 1830s and 1840s. Teams encode a short headline and trade with another team to decode it.
- Grades 6–8Physical science: use the tone and speed sliders to explore frequency and timing, then talk about why an on–off signal is easy to detect through noise.
- Grades 9–12Computer science: compare Morse with binary and ASCII. Why does Morse give short codes to frequent letters, and what challenges does a variable-length code create?
Questions
What format does the translator expect for Morse?
Use dots for short signals and hyphens for long ones, a space after each letter and a slash to separate words. So .... .. reads as HI.
Does anything I type get sent to a server?
No. The source page states that the translation, audio and any file are created inside your own browser. If you share a link, the message rides in the part of the address after the # sign, and that part never goes to the website’s server.
Is the flashing light safe for every student?
Flashing light may bring on a seizure in anyone with photosensitive epilepsy. The tool limits light modes to a slow speed, but check with your class first, and to stop it, press Escape or tap anywhere on the display.
Can it handle letters like É or Ñ?
Yes. The tool’s International Morse includes codes for common accented letters, and other scripts can be picked from the Alphabet menu.
Opens Unscramble Words 4U, our free word-puzzle site, in a new tab. Free, with no sign-up.
Morse code is a way to send messages, not to hide them – anyone who knows the code can read it, so students should never use it for passwords or personal details. Share postcard links only with people you know.