Free Online Morse Code Decoder & Encoder
Instantly convert Morse code to text or encode text into Morse code. Play audio, copy results, and reference the complete Morse code chart — all free, no signup needed.
How This Morse Code Decoder Works
Choose Mode
Select "Decode Morse to Text" or "Encode Text to Morse" based on what you need to convert.
Enter Your Input
Type or paste your Morse code (using . and -) or plain text into the input area.
Convert Instantly
Click the convert button and get your result immediately in the output area.
Play, Copy, or Share
Listen to the Morse audio, copy the result, or share it with others — all in one click.
Complete Guide to Morse Code Decoder
Morse code is one of the most enduring communication systems ever created. Developed by Samuel Morse and Alfred Vail in the early 1830s, it revolutionized long-distance communication by encoding letters, numbers, and punctuation into sequences of short signals (dots) and long signals (dashes). Originally transmitted through electrical telegraph wires, Morse code later became essential in radio communication, maritime operations, aviation, and military signaling. Even today, Morse code remains relevant — amateur radio operators, emergency responders, and technology enthusiasts continue to use and study this elegant encoding system.
What Is a Morse Code Decoder?
A Morse code decoder is a tool that translates Morse code signals back into readable text. Instead of manually looking up each dot-and-dash combination in a reference chart, our online Morse code decoder performs the conversion instantly and accurately. Whether you are a student learning about telegraph history, a ham radio operator decoding a transmission, a puzzle solver cracking a cryptic clue, or simply curious about a string of dots and dashes you found, this tool handles the heavy lifting for you. It supports all 26 English letters (A through Z), all 10 digits (0 through 9), and a comprehensive set of punctuation marks.
How to Write Morse Code Correctly
Understanding the correct format for written Morse code is crucial for accurate decoding. In standard notation, a dot is represented by a period (.) and a dash by a hyphen (-). Individual letters are separated by a single space. Words are separated by three spaces or, more commonly in digital tools, a forward slash (/). For example, the phrase "HELLO WORLD" is written as .... . .-.. .-.. --- / .-- --- .-. .-.. -... Our decoder intelligently handles both the three-space format and the slash format, so you can paste Morse code from virtually any source and get correct results.
Features of Our Morse Code Tool
- Two-Way Conversion: Switch between decoding Morse to text and encoding text to Morse with a single toggle.
- Audio Playback: Hear your Morse code played as audible tones — dots produce short beeps and dashes produce longer beeps, with proper timing between letters and words.
- Adjustable Speed: Control the playback speed in Words Per Minute (WPM) using the speed slider, from slow learning pace (5 WPM) to fast expert pace (30 WPM).
- Full Character Support: Encode and decode all letters, numbers, and common punctuation including period, comma, question mark, exclamation mark, slash, parentheses, and more.
- Copy and Clear: One-click copy to clipboard and clear all fields for quick repeated use.
- Free and Private: No account required, no data stored on servers — all processing happens locally in your browser.
Practical Applications of Morse Code
While Morse code may seem like a relic of the past, it has remarkably practical modern applications. In emergency situations, Morse code can be transmitted through simple methods like flashing lights, tapping, or sound when other communication systems fail. The universal distress signal SOS (··· --- ···) is recognized worldwide. Morse code is still a requirement for certain amateur radio licenses in various countries. It appears in escape rooms, geocaching puzzles, and competitive cipher challenges. Learning Morse code improves pattern recognition and memory skills, making it a valuable educational tool for students of all ages.
Tips for Learning Morse Code
If you are learning Morse code, start by memorizing the most common letters first — E (·), T (-), A (·-), N (-·), I (··), O (---), S (···), and H (····) account for over 30% of English text. Practice with our audio playback feature at slow speeds, then gradually increase the WPM as you improve. Try writing down what you hear before checking the answer. Use the "Load Example" button in our tool to practice with pre-made sequences. Consistency is key — even 10 minutes of daily practice will build your Morse code fluency over a few weeks.
Complete Morse Code Reference Chart
| Character | Morse Code | Character | Morse Code |
|---|---|---|---|
| A | ·− | N | −· |
| B | −··· | O | −−− |
| C | −·−· | P | ·−−· |
| D | −·· | Q | −−·− |
| E | · | R | ·−· |
| F | ··−· | S | ··· |
| G | −−· | T | − |
| H | ···· | U | ··− |
| I | ·· | V | ···− |
| J | ·−−− | W | ·−− |
| K | −·− | X | −··− |
| L | ·−·· | Y | −·−− |
| M | −− | Z | −−·· |
| 0 | −−−−− | 5 | ····· |
| 1 | ·−−−− | 6 | −···· |
| 2 | ··−−− | 7 | −−··· |
| 3 | ···−− | 8 | −−−·· |
| 4 | ····− | 9 | −−−−· |
| . | ·−·−·− | , | −−··−− |
| ? | ··−−·· | ' | ·−−−−· |
| ! | −·−·−− | / | −··−· |
| ( | −·−−· | ) | −·−−·− |
| & | ·−··· | : | −−−··· |
| ; | −·−·−· | = | −···− |
| + | ·−·−· | − | −····− |
| _ | ··−−·− | " | ·−··−· |
| $ | ···−··− | @ | ·−−·−· |