Morse Code Encoder Decoder Online
Convert plain text to Morse code and decode Morse code with spaces between letters and slashes between words.
How to Use the Morse Code Encoder / Decoder
Translate short phrases and Morse sequences with the same two-panel workflow used across the cipher tools category.
Quick Overview
Morse code is not modern encryption. It is a character encoding system built from dots and dashes and is commonly associated with Morse code history and telegraph signaling.
This page works best when you keep spaces between Morse letters and use / between words. During decoding, unknown Morse groups are shown as question marks so spacing mistakes are visible instead of being hidden. For historical background, the Britannica Morse Code overview and notes on International Morse Code are useful references.
Encode
Letters become dot-dash sequences separated by spaces.
Decode
Use spaces between letters and "/" between words.
Best For
Learning, radio examples, puzzles, and historical demos.
Choose Encode or Decode
Use encode mode for plain text and decode mode for Morse input. The tool handles letters, numbers, and common punctuation, so it is suitable for short messages, learning examples, radio-style demos, and puzzle clues without much manual cleanup. If you want the person behind the code itself, Samuel F.B. Morse is the standard biographical reference.
HELLO becomes Morse sequences./.Follow the Spacing Rules
S = ...O = ---SOS = ... --- ...SOS HELP = ... --- ... / .... . .-.. .--.If a decode result includes ?, one token likely used the wrong spacing or an unsupported dot-dash sequence. That is a useful signal when you are debugging copied Morse text.
Work Through an Example
Example Input
SOS NEED HELP
Example Output
... --- ... / -. . . -.. / .... . .-.. .--.
This example checks both letter spacing and word separation, which is where most Morse decoding mistakes happen in practice.
Copy or Download the Result
Once the spacing looks right, copy the result or download it. If you want a more cipher-like transform next, move to Rail Fence Cipher or Caesar Cipher.
Frequently Asked Questions
Is Morse code encryption?
No. Morse code is an encoding format, not modern cryptographic protection.
How do I separate words?
Use a slash character between words and spaces between individual letters.
Can I decode punctuation too?
Yes, common punctuation is supported, though plain letters and digits remain the most common use case.
Why do I see question marks in the output?
At least one Morse token did not match a supported pattern. Check the dot-dash sequence itself and confirm that spaces and slashes were placed correctly.
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