Morse Code Decoder
Decode International Morse code back into readable text. Paste dots and dashes and get plain text instantly, with unknown group warnings.
About Morse Code Decoder
Overview
The Morse Code Decoder translates International Morse code back into readable text. Paste your dots and dashes, and the tool splits the input on letter and word boundaries to reconstruct the original text. Unknown Morse groups are replaced with a question mark and listed in a warning so you can spot transcription errors. All processing runs in your browser — your input never leaves your device.
Features
- Decodes International Morse code to plain text.
- Multi-line Monaco editor for comfortable editing.
- Live mode for real-time decoding as you type.
- Accepts both slash separators ( / ) and multiple spaces as word breaks.
- Flags unknown Morse groups so you can identify transcription errors.
- One-click copy and plain text download.
- Works on mobile and desktop with full dark mode support.
- All processing happens locally in your browser for full privacy.
How to Use
- Type or paste Morse code into the editor (e.g. .... . .-.. .-.. ---).
- Separate letters with a single space; separate words with a space-slash-space ( / ) or three or more spaces.
- Live mode decodes as you type; toggle it off to convert on demand.
- Use Copy or Download to save the decoded result.
FAQ
What format should my Morse code be in?
Single spaces between letters, and a slash ( / ) or three or more spaces between words. Most Morse code you find online follows this convention and will work without cleanup.
What does "?" in the output mean?
A question mark means a Morse group was not found in the International Morse alphabet. The group is listed in the warning below the output so you can check for transcription errors.
Why does the tool reject my input?
The decoder only accepts dots, dashes, spaces, and slashes. If your input contains letters, digits, or other characters, use the Morse Code Encoder instead.