•– Morse Code Translator Tool

Morse Code Translator Tool

Free online Morse code translator. Convert text to Morse code or decode Morse to English instantly. Listen at any speed, adjust pitch, practice with Farnsworth timing.

How to Use This Morse Code Translator

This Morse code translator works both directions. To convert English text to Morse code, click the Text → Morse tab and start typing. The output updates live — every letter, number, and common punctuation mark appears in its Morse equivalent. To go the other way, click Morse → Text and paste Morse code using dots (.), dashes (-), spaces between letters, and slashes (/) between words. The English translation appears instantly.

Unlike most Morse code translator tools, this one is built for people who actually want to learn Morse — not just convert a phrase for a school assignment. You can play audio at any speed from 5 to 40 words per minute, adjust the sidetone pitch from 400 to 1000 Hz, enable Farnsworth timing for character-speed practice, flash your screen for visual practice, and switch between the two historical Morse standards: International and American (Railroad).

International vs American Morse Code

Most online Morse code translators only support International Morse. This tool supports both. International Morse is the standard used today by amateur radio operators, military, and aviation worldwide — it's what most people mean when they say "Morse code." American Morse, also called Railroad Morse, was used by 19th-century American telegraph companies and differs significantly: it includes spaces inside characters, uses distinct codes for letters like C, J, L, O, and was dominant on U.S. railroads until radio replaced wired telegraphy. If you're doing historical research, translating an old railway document, or studying telegraph history, switch the Standard dropdown to American.

What Is Morse Code?

Morse code is a method of transmitting text using standardized sequences of short and long signals — commonly called "dits" and "dahs" (or dots and dashes). Samuel Morse and Alfred Vail developed the original American Morse system in the 1830s for use on the first electric telegraph. A refined version, now called International Morse, was adopted in 1865 and remains in use today, particularly among amateur radio (ham) operators. Each letter of the alphabet, each digit, and most punctuation marks has a unique Morse sequence built from combinations of dits and dahs.

The genius of Morse code is that it only needs two states — on and off — making it the simplest possible digital communication system. You can send it by sound, light, radio, electricity, tapping on a wall, or even blinking your eyes. During World War II, prisoners of war communicated by Morse tapped through prison walls. Jeremiah Denton, a captured American pilot, blinked "T-O-R-T-U-R-E" in Morse during a 1966 North Vietnamese propaganda broadcast — the first proof the outside world had that POWs were being tortured.

Learning Morse Code: Why Farnsworth Timing Matters

If you're trying to learn Morse code, the biggest trap is learning characters at too-slow speeds. At 5 words per minute, each letter sounds like a sequence of individual tones — so your brain memorizes them as patterns to count rather than sounds to recognize. When you try to speed up, you hit a wall around 10–12 WPM because you have to unlearn the counting habit.

Farnsworth timing solves this by keeping each character at a higher speed (typically 18–20 WPM) while padding the spaces between characters and words with extra silence. Your brain hears each letter as a unique sound shape right from day one, but the overall pace stays comfortable. As you improve, you shrink the spacing while keeping the character speed constant. This is how ham radio clubs have taught Morse since Donald R. "Russ" Farnsworth (W6TTB) published the method in the 1950s. Enable the Farnsworth checkbox above to try it.

WPM and the PARIS Standard

Morse speed is measured in words per minute (WPM), where one "word" is defined as the word PARIS including the space that follows it — exactly 50 dit-lengths. This means:

Amateur radio exams in most countries no longer require Morse, but the art remains popular because it works in conditions where voice fails — extreme static, long distances on low power, or tiny homebrew transmitters. A good operator can copy 25–30 WPM by ear indefinitely; top contest operators exceed 50 WPM.

Common Ham Radio Phrases You'll Hear in Morse

Prosigns: The "Punctuation" of Morse

Prosigns are procedural signals — special Morse sequences that don't represent a single letter but rather a meta-instruction like "end of message" or "new paragraph." They're usually written with a bar over the letters (e.g., SK) to indicate the letters are sent as one continuous string with no inter-character space. The most common prosigns:

How to Send SOS

SOS in Morse is ... --- ... — three dits, three dahs, three dits — sent as one unbroken string with no spaces between the letters (it's a prosign, not three separate letters). It's the universal maritime distress signal, adopted in 1906 at the International Radiotelegraphic Convention because it's short, distinctive, and recognizable even when partially garbled. The letters don't actually stand for anything — "Save Our Souls" and "Save Our Ship" are later back-formations.

If you're truly in distress, SOS can be signaled with anything that produces two distinguishable states: a flashlight (short flash, long flash), a whistle, a mirror reflecting sunlight, knocking on a wall, or banging two rocks together. Three-three-three is the rhythm your rescuer needs to hear.

Frequently Asked Questions

Can I use this Morse code translator offline?

Yes — once the page loads, all translation happens in your browser. No data is sent to a server. You can save the page for offline use (Ctrl+S / Cmd+S).

Does the audio work on mobile?

Yes, on any modern browser. iOS requires you to tap the Play button before audio can start (browser security), but it works perfectly after that first tap.

What's the difference between a dit and a dot?

Nothing — they're two names for the same thing. "Dit" and "dah" are what Morse actually sounds like and what experienced operators say aloud when reading code. "Dot" and "dash" are what it looks like on paper. Both are correct.

Can I translate from Morse audio (listening)?

Not directly — decoding audio requires recognizing individual character timing, which varies too much in real-world recordings. For reliable audio decoding, type what you hear into the Morse → Text field and the tool will translate it.

Is this translator accurate?

Yes. It implements the official ITU-R M.1677-1 recommendation for International Morse code, plus the American (Railroad) Morse variant as documented in 19th-century telegraph training manuals. Prosigns, punctuation, and digit encodings all follow published ham radio references.

About This Tool

This Morse code translator is built around actual on-the-air practice: PARIS-standard WPM, Farnsworth timing for learning, 600 Hz default sidetone (the standard for CW radios), and support for the prosigns and punctuation you'll actually encounter. All translation runs entirely in your browser — nothing is uploaded, no account is required. If you spot an error or have a feature request, reach out via our contact page. More on this tool's design goals and standards compliance is on the about page.