Morse Code Translator — Text to Morse & Morse to Text, with Audio

Turn any text into dots and dashes — or decode Morse code back into plain English — with the free translator below. It covers the full International Morse alphabet, plays your message as real audio beeps, and lets you copy or download the result. A favourite for amateur-radio practice, scout groups, escape-room puzzles and anyone who ever wondered what SOS actually sounds like. You can use this Morse Code Translator free on IlmHunt — no sign-up needed, and it runs entirely in your browser.

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Further reading: Morse code on Wikipedia

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<iframe srcdoc="&lt;!DOCTYPE html&gt; &lt;html lang=&quot;en&quot;&gt; &lt;head&gt; &lt;meta charset=&quot;UTF-8&quot;&gt; &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1.0&quot;&gt; &lt;title&gt;Morse Code Translator&lt;/title&gt; &lt;style&gt; body { font-family: Arial, sans-serif; background-color: #f4f4f9; padding: 20px; margin: 0; } .container { background-color: #fff; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); max-width: 600px; margin: 0 auto; } h1 { text-align: center; color: #333; margin-bottom: 20px; } label { display: block; margin-bottom: 8px; font-weight: bold; color: #555; } textarea { width: 100%; padding: 10px; font-size: 16px; border: 1px solid #ccc; border-radius: 4px; margin-bottom: 20px; resize: vertical; min-height: 100px; } .buttons { display: flex; gap: 10px; margin-bottom: 20px; } .buttons button { padding: 10px 20px; font-size: 16px; border: none; border-radius: 4px; background-color: #28a745; color: #fff; cursor: pointer; } .buttons button:hover { opacity: 0.9; } .result { font-size: 16px; color: #007bff; margin-top: 20px; white-space: pre-wrap; word-wrap: break-word; } .error { color: #dc3545; font-weight: bold; margin-top: 10px; } &lt;/style&gt; &lt;/head&gt; &lt;body&gt; &lt;div class=&quot;container&quot;&gt; &lt;h1&gt;Morse Code Translator&lt;/h1&gt; &lt;label for=&quot;textInput&quot;&gt;Text:&lt;/label&gt; &lt;textarea id=&quot;textInput&quot; placeholder=&quot;Type or paste text here...&quot;&gt;&lt;/textarea&gt; &lt;label for=&quot;morseInput&quot;&gt;Morse Code:&lt;/label&gt; &lt;textarea id=&quot;morseInput&quot; placeholder=&quot;Type or paste Morse code here...&quot;&gt;&lt;/textarea&gt; &lt;div class=&quot;buttons&quot;&gt; &lt;button onclick=&quot;translateToMorse()&quot;&gt;Text to Morse&lt;/button&gt; &lt;button onclick=&quot;translateToText()&quot;&gt;Morse to Text&lt;/button&gt; &lt;button onclick=&quot;playMorse()&quot;&gt;Play Morse&lt;/button&gt; &lt;button onclick=&quot;copyMorse()&quot;&gt;Copy Morse&lt;/button&gt; &lt;button onclick=&quot;downloadMorse()&quot;&gt;Download Morse&lt;/button&gt; &lt;button onclick=&quot;clearAll()&quot;&gt;Clear All&lt;/button&gt; &lt;/div&gt; &lt;div class=&quot;result&quot; id=&quot;result&quot;&gt;&lt;/div&gt; &lt;div class=&quot;error&quot; id=&quot;error&quot;&gt;&lt;/div&gt; &lt;/div&gt; &lt;script&gt; const textInput = document.getElementById('textInput'); const morseInput = document.getElementById('morseInput'); const resultDiv = document.getElementById('result'); const errorDiv = document.getElementById('error'); // Morse code mapping const morseCodeMap = { 'A': '.-', 'B': '-...', 'C': '-.-.', 'D': '-..', 'E': '.', 'F': '..-.', 'G': '--.', 'H': '....', 'I': '..', 'J': '.---', 'K': '-.-', 'L': '.-..', 'M': '--', 'N': '-.', 'O': '---', 'P': '.--.', 'Q': '--.-', 'R': '.-.', 'S': '...', 'T': '-', 'U': '..-', 'V': '...-', 'W': '.--', 'X': '-..-', 'Y': '-.--', 'Z': '--..', '1': '.----', '2': '..---', '3': '...--', '4': '....-', '5': '.....', '6': '-....', '7': '--...', '8': '---..', '9': '----.', '0': '-----', '.': '.-.-.-', ',': '--..--', '?': '..--..', &quot;'&quot;: '.----.', '!': '-.-.--', '/': '-..-.', '(': '-.--.', ')': '-.--.-', '&amp;': '.-...', ':': '---...', ';': '-.-.-.', '=': '-...-', '+': '.-.-.', '-': '-....-', '_': '..--.-', '&quot;': '.-..-.', '@': '.--.-.', ' ': '/' }; // Reverse Morse code mapping const reverseMorseCodeMap = Object.fromEntries( Object.entries(morseCodeMap).map(([key, value]) =&gt; [value, key]) ); function translateToMorse() { const text = textInput.value.trim().toUpperCase(); // Clear previous results or errors resultDiv.textContent = &quot;&quot;; errorDiv.textContent = &quot;&quot;; if (!text) { errorDiv.textContent = 'Please enter some text.'; return; } // Convert text to Morse code const morseCode = text.split(&quot;&quot;).map(char =&gt; { return morseCodeMap[char] || &quot;&quot;; }).join(' '); morseInput.value = morseCode; // Update Morse code field resultDiv.textContent = `Morse Code: ${morseCode}`; } function translateToText() { const morseCode = morseInput.value.trim(); // Clear previous results or errors resultDiv.textContent = &quot;&quot;; errorDiv.textContent = &quot;&quot;; if (!morseCode) { errorDiv.textContent = 'Please enter some Morse code.'; return; } // Convert Morse code to text const text = morseCode.split(' ').map(code =&gt; { return reverseMorseCodeMap[code] || &quot;&quot;; }).join(&quot;&quot;); textInput.value = text; // Update text field resultDiv.textContent = `Text: ${text}`; } function playMorse() { const morseCode = morseInput.value.trim(); if (!morseCode) { errorDiv.textContent = 'No Morse code to play.'; return; } // Play Morse code as audio const audioContext = new (window.AudioContext || window.webkitAudioContext)(); const dotDuration = 0.1; // Duration of a dot in seconds const dashDuration = 0.3; // Duration of a dash in seconds const spaceDuration = 0.2; // Duration of a space in seconds let time = audioContext.currentTime; morseCode.split(&quot;&quot;).forEach(symbol =&gt; { if (symbol === '.') { playBeep(audioContext, time, dotDuration); time += dotDuration; } else if (symbol === '-') { playBeep(audioContext, time, dashDuration); time += dashDuration; } else if (symbol === ' ') { time += spaceDuration; } }); } function playBeep(audioContext, startTime, duration) { const oscillator = audioContext.createOscillator(); const gainNode = audioContext.createGain(); oscillator.frequency.value = 600; // Frequency of the beep oscillator.connect(gainNode); gainNode.connect(audioContext.destination); oscillator.start(startTime); oscillator.stop(startTime + duration); } function copyMorse() { if (morseInput.value) { navigator.clipboard.writeText(morseInput.value) .then(() =&gt; alert('Morse code copied to clipboard!')) .catch(() =&gt; alert('Failed to copy Morse code.')); } else { alert('No Morse code to copy.'); } } function downloadMorse() { const morseCode = morseInput.value.trim(); if (!morseCode) { errorDiv.textContent = 'No Morse code to download.'; return; } // Create a downloadable audio file const audioContext = new (window.AudioContext || window.webkitAudioContext)(); const dotDuration = 0.1; // Duration of a dot in seconds const dashDuration = 0.3; // Duration of a dash in seconds const spaceDuration = 0.2; // Duration of a space in seconds let time = 0; const audioBuffer = audioContext.createBuffer(1, audioContext.sampleRate * morseCode.length * dashDuration, audioContext.sampleRate); const bufferSource = audioContext.createBufferSource(); bufferSource.buffer = audioBuffer; morseCode.split(&quot;&quot;).forEach(symbol =&gt; { if (symbol === '.') { playBeep(audioContext, time, dotDuration); time += dotDuration; } else if (symbol === '-') { playBeep(audioContext, time, dashDuration); time += dashDuration; } else if (symbol === ' ') { time += spaceDuration; } }); bufferSource.start(); bufferSource.stop(time); const blob = new Blob([morseCode], { type: 'text/plain' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = 'morse_code.txt'; a.click(); URL.revokeObjectURL(url); } function clearAll() { textInput.value = &quot;&quot;; morseInput.value = &quot;&quot;; resultDiv.textContent = &quot;&quot;; errorDiv.textContent = &quot;&quot;; } &lt;/script&gt; &lt;style&gt;html,body{height:auto!important;min-height:0!important;max-height:none!important}&lt;/style&gt;&lt;script&gt;(function(){function wpcPost(){try{parent.postMessage({wpcId:261,wpcH:document.body.scrollHeight},'*');}catch(e){}}window.addEventListener('load',wpcPost);try{new MutationObserver(wpcPost).observe(document.body,{childList:true,subtree:true,attributes:true});}catch(e){}window.addEventListener('resize',wpcPost);setInterval(wpcPost,600);})();&lt;/script&gt;&lt;/body&gt; &lt;/html&gt;" id="wpc-frame-261" class="wpc-embed-frame" style="width:100%;border:0;display:block;overflow:hidden;" scrolling="no"></iframe> <p><a href="https://ilmhunt.com/morse-code-translator/" target="_blank" rel="noopener">Morse Code Translator — Text to Morse &#038; Morse to Text, with Audio</a> by <a href="https://ilmhunt.com/" target="_blank" rel="noopener">IlmHunt</a> — free online tools</p>