What is Morse code?
Morse code is a way of writing letters, numbers and punctuation as sequences of two elements: a short signal called a dot (spoken “dit”) and a long signal called a dash (spoken “dah”). A dash lasts three times as long as a dot. The letter A is · −, the letter N is − ·, and the famous distress call SOS is · · · − − − · · ·.
Because it needs only two states — on and off, light and dark, sound and silence — Morse code can be sent with almost anything: a telegraph key, a radio, a ship’s signal lamp, a lighthouse, a flashlight, a whistle, a tapping finger, or an eye blink. That is what made it the world’s first practical long-distance electrical communication method in the 1840s, and what keeps it alive today among radio amateurs, pilots, sailors and people who use it as an assistive communication tool.
The version used worldwide is International Morse code (sometimes called Continental Morse). It defines the 26 Latin letters, the digits 0–9, about eighteen punctuation marks and a handful of procedural signals. Morse Code Coach teaches that standard.
Morse code at a glance
| Invented | 1837–1844 by Samuel F. B. Morse and Alfred Vail in the United States; first public line Washington–Baltimore, 24 May 1844 |
|---|---|
| Current standard | International Morse code, defined in ITU-R Recommendation M.1677-1 (2009) |
| Character set | 26 letters, 10 digits, 18 punctuation marks and a small set of procedural signals (prosigns) |
| Elements | Dot = 1 unit, dash = 3 units |
| Gaps | 1 unit between elements, 3 units between characters, 7 units between words |
| Speed | Words per minute (WPM); the standard word PARIS is 50 units, so dot length in ms = 1200 ÷ WPM |
| Distress signal | SOS (· · · − − − · · ·), adopted 1906, in force from 1 July 1908 |
| Time to learn | All 40 core characters in about 5 hours with this trainer; 15–20 WPM fluency after 2–3 months of daily practice |
| Used today by | Amateur radio operators (CW), aviation navigation beacons, naval signal lamps, assistive communication devices |
How do you use Morse Code Coach?
The trainer at the top of this page is a complete course with a game layer on top. Here is how it works from your first click to graduation.
1. Start Lesson 1
Press Start Lesson 1. Each lesson introduces two new characters following the Koch order (K and M first, then R and S, and so on), plays them for you, and shows a rhythm hint like “dah-di-dah”. Click a character card to hear it again as often as you like. Use headphones if you can — the rhythm is the whole point.
2. Listening drill
The coach plays a single character with a beep and a flashing lamp; you type the letter. New characters appear about half of the time, and every earlier character stays in rotation so nothing fades. A wrong answer shows the correct character and replays it. Correct answers build a streak, and streaks earn bonus XP.
3. Sending drill
Now you send. The space bar is your telegraph key: a short press is a dot, a long press is a dash, and a short pause ends the character. On a phone, hold the on-screen key button instead. The coach decodes your keying live and tells you what letter you actually sent, so timing mistakes are obvious immediately. Your keying speed adapts to you, and you can set a base speed in the settings.
4. Group drill
Finally you copy short words or random groups built from everything you know so far, and type them in. Pass the lesson with 75% accuracy or better and the next lesson unlocks. After Lesson 1 the coach asks for your name and saves your progress in this browser, so you can close the tab and continue tomorrow exactly where you stopped.
5. The Practice Arena
Practice modes open after the first lesson and use only the characters you have learned. Once you graduate from all 20 lessons, the arena switches to real messages: famous quotes, proverbs, notes between friends, encrypted agent transmissions and radio traffic between ships and lighthouses.
🎧 Listen
Pure audio. Copy the message by ear, exactly like a radio operator. This is the mode that builds real skill.
🗼 Lighthouse
An animated lighthouse flashes the message across the night sea. Read the light, type the text.
🚢 Signal Lamp
A ship signals with its Aldis lamp from the deck. Same skill, different scene — with optional sound.
🌊 Symbol Stream
Dots and dashes drift across the screen in real time, with markers at character and word boundaries.
📜 Read Code
The whole message is written out in dots and dashes. Translate it at your own pace — great for beginners.
⌨️ Send
You get the text and key it yourself with the space bar. Hints show the next pattern; hide them for bonus XP.
Points, levels, ranks and badges
Every correct character earns XP. Lessons pay a completion bonus, a first-time bonus and a flawless bonus. Levels follow a simple curve, and every few levels you gain a rank: Cadet, Signal Apprentice, Junior Operator, Telegraphist, Signal Officer, Radio Officer, Chief Operator, Morse Master and finally Legend of the Key. Twenty-two badges reward milestones such as your first perfect lesson, a 25-answer streak, decoding a distress call, or practising seven days in a row. Your character grid on the home screen colours each letter by mastery, so you always know what to review.
Settings
The ⚙️ button opens the settings. You can change the character speed (how fast each letter is sent), the effective speed (how long the gaps are — this is Farnsworth spacing), the tone pitch, the volume, your keying speed for the space-bar key, and your name. The backup section produces a text code you can paste into another browser to carry your progress with you. Nothing is ever uploaded.
How long does it take to learn Morse code?
Here is a concrete answer instead of “it depends”:
One day to learn the full alphabet, numbers and punctuation with Morse Code Coach. The 20 lessons take about 15 minutes each — roughly 5 hours of focused practice with breaks. By the evening you can recognise every character by sound and send all of them with a key.
Two to three weeks of 15–20 minutes a day to copy slow messages (5–8 words per minute) reliably without thinking about individual letters.
Two to three months of the same daily habit to reach conversational speed of 15–20 words per minute, the level used in amateur radio contacts.
A realistic one-day study plan
| Time | What to do | Characters known |
|---|---|---|
| Morning, 90 min | Lessons 1–6 (K M R S U A P T L O W I). Short breaks every two lessons. | 12 |
| Late morning, 30 min | Practice Arena: Listen and Lighthouse rounds with your 12 characters. | 12 |
| Afternoon, 90 min | Lessons 7–13 (. N J E F 0 Y , V G 5 / Q 9). The period and comma feel long at first — that is normal. | 26 |
| Afternoon, 30 min | Send mode: key ten short messages. Watch your dash length. | 26 |
| Evening, 90 min | Lessons 14–20 (Z H 3 8 B ? 4 2 7 C 1 D 6 X). Graduate. | 40 |
| Evening, 20 min | Decode your first famous quote and secret agent message in the arena. | 40 |
If a full day is not available, do two lessons per day and you will graduate in ten days. What matters most is not the total hours but the daily rhythm; the coach tracks your day streak for exactly that reason.
What is the full International Morse code alphabet?
Click ▶ on any row to hear the character at your current settings. The “sound” column shows how operators say the code out loud — learn that, not the dots and dashes on paper.
Letters A–Z
| Letter | Code | Sound | How to remember it | |
|---|---|---|---|---|
| A | · − | di-dah | Short then long. The lightest two-element letter — think “a-WAY”. A begins most word lists and most Morse courses for a reason: it teaches the dot–dash contrast instantly. | |
| B | − · · · | dah-di-di-dit | One long beat, then three quick dots, like a drum roll after a hit. B is the mirror image of V. | |
| C | − · − · | dah-di-dah-dit | Alternating long-short-long-short with a galloping feel: “CO-ca CO-la”. | |
| D | − · · | dah-di-dit | Long then two shorts: “DOG did it”. The mirror of U. | |
| E | · | dit | A single dot. The most frequent letter in English gets the shortest code — a deliberate design choice by Alfred Vail. | |
| F | · · − · | di-di-dah-dit | Two dots, a dash, a dot: “fetch a FIRE-man”. Often confused with L (· − · ·) — the dash sits in the third slot for F, second for L. | |
| G | − − · | dah-dah-dit | Two longs and a short: “GOOD GRA-vy”. The mirror of W. | |
| H | · · · · | di-di-di-dit | Four quick dots. Fastest letter to send; listen for four, not five (which is the digit 5). | |
| I | · · | di-dit | Two dots. Half of H, twice E. | |
| J | · − − − | di-dah-dah-dah | One dot then three dashes: “in JU-LY-JAM”. Rare in English, so it is taught late. | |
| K | − · − | dah-di-dah | Long-short-long: “KAN-ga-ROO”. On the radio a lone K means “go ahead, your turn”. It is the very first character in the Koch order because its rhythm is so distinctive. | |
| L | · − · · | di-dah-di-dit | Dot, dash, two dots: “li-NO-le-um”. | |
| M | − − | dah-dah | Two long dashes: “MM-MM”. Second character in the Koch order, contrasting with K. | |
| N | − · | dah-dit | Long then short — the mirror image of A. | |
| O | − − − | dah-dah-dah | Three long dashes: “OH MY GOD”. The middle of SOS. | |
| P | · − − · | di-dah-dah-dit | Dot, two dashes, dot — symmetrical: “a POOR PAR-ent”. | |
| Q | − − · − | dah-dah-di-dah | “GOD SAVE the QUEEN” — two longs, a short, a long. Q signals such as QTH and QSL are radio shorthand built on this letter. | |
| R | · − · | di-dah-dit | Short-long-short: “ro-TA-tion”. The mirror of K; on the air R means “received”. | |
| S | · · · | di-di-dit | Three quick dots. The S in SOS and the first letter ever sent across the Atlantic by radio (1901). | |
| T | − | dah | A single dash. Second most common English letter, second shortest code. | |
| U | · · − | di-di-dah | Two shorts then a long: “u-ni-FORM”. The mirror of D. | |
| V | · · · − | di-di-di-dah | The opening of Beethoven’s Fifth Symphony — “V for Victory”, used by the BBC in World War II. | |
| W | · − − | di-dah-dah | Short then two longs: “a-WAY-WAY”. The mirror of G. | |
| X | − · · − | dah-di-di-dah | Long, two shorts, long: “X marks the SPOT” — a dash on each end, like the arms of an X. | |
| Y | − · − − | dah-di-dah-dah | “YEL-low YO-YO”: long, short, long, long. | |
| Z | − − · · | dah-dah-di-dit | Two longs then two shorts: “ZINC ZOO-kee-per”. |
Numbers 0–9
The digits follow a beautiful rule, so you never have to memorise them individually. Every digit has five elements. Starting from 1, the number of dots counts up and the rest are dashes; from 6 the dashes come first and the dots count down. Zero is five dashes.
| Digit | Code | Sound | Pattern | |
|---|---|---|---|---|
| 1 | · − − − − | di-dah-dah-dah-dah | 1 dot, 4 dashes | |
| 2 | · · − − − | di-di-dah-dah-dah | 2 dots, 3 dashes | |
| 3 | · · · − − | di-di-di-dah-dah | 3 dots, 2 dashes | |
| 4 | · · · · − | di-di-di-di-dah | 4 dots, 1 dash | |
| 5 | · · · · · | di-di-di-di-dit | 5 dots | |
| 6 | − · · · · | dah-di-di-di-dit | 1 dash, 4 dots | |
| 7 | − − · · · | dah-dah-di-di-dit | 2 dashes, 3 dots | |
| 8 | − − − · · | dah-dah-dah-di-dit | 3 dashes, 2 dots | |
| 9 | − − − − · | dah-dah-dah-dah-dit | 4 dashes, 1 dot | |
| 0 | − − − − − | dah-dah-dah-dah-dah | 5 dashes |
Punctuation and special characters
The coach teaches the period, comma, question mark and slash, which cover almost all everyday messages. The rest of the ITU table is here for reference.
| Sign | Code | Name / use | |
|---|---|---|---|
| . | · − · − · − | Period (full stop). Three di-dah pairs in a row. | |
| , | − − · · − − | Comma. Two longs, two shorts, two longs. | |
| ? | · · − − · · | Question mark. Also sent alone to mean “please repeat”. | |
| / | − · · − · | Slash (fraction bar). Used in call signs such as W1AW/3. | |
| = | − · · · − | Equals sign / BT prosign: separates sections of a message. | |
| + | · − · − · | Plus sign / AR prosign: end of message. | |
| - | − · · · · − | Hyphen or minus. | |
| ' | · − − − − · | Apostrophe. | |
| " | · − · · − · | Quotation mark. | |
| : | − − − · · · | Colon. | |
| @ | · − − · − · | At sign. Added by the ITU in 2004 — the newest character in the code. | |
| ! | − · − · − − | Exclamation mark (common but not in the ITU table). | |
| ( | − · − − · | Open parenthesis / KN prosign: “go ahead, named station only”. | |
| ) | − · − − · − | Close parenthesis. | |
| & | · − · · · | Ampersand / AS prosign: “wait”. |
Prosigns and common abbreviations
Prosigns (procedural signals) are two letters run together without the usual gap, written with a bar over them. They control the flow of a conversation. Abbreviations are just shortened words.
| Signal | Code | Meaning | |
|---|---|---|---|
| SOS | · · · − − − · · · | Distress. Sent as one continuous sign, without letter gaps. | |
| AR | · − · − · | End of message. | |
| SK | · · · − · − | End of contact (“silent key” also honours a deceased operator). | |
| BT | − · · · − | Break / new paragraph. | |
| KN | − · − − · | Go ahead, only the station I called. | |
| AS | · − · · · | Wait, stand by. | |
| CQ | − · − · − − · − | Calling any station (“seek you”). | |
| DE | − · · · | “From” — precedes your call sign. | |
| 73 | − − · · · · · · − − | Best regards. | |
| 88 | − − − · · − − − · · | Love and kisses. |
How does Morse code timing and speed work?
Every Morse character is built from one unit of time, the length of a dot. All other lengths are multiples of it:
- Dot: 1 unit of signal
- Dash: 3 units of signal
- Gap between elements of one character: 1 unit of silence
- Gap between characters: 3 units of silence
- Gap between words: 7 units of silence
Getting these ratios right matters more than raw speed. A dash that is only twice as long as a dot sounds like a dot to a tired ear; a character gap that is too short glues letters together (“TEE” becomes “I E” or “S”). The sending drill in Morse Code Coach decodes your keying with exactly these ratios, which is why it occasionally tells you that your R came out as an A followed by an E.
Words per minute and the word PARIS
Speed is measured in words per minute (WPM), using the standard word PARIS, which is exactly 50 units long including the word gap. At 20 WPM, 1000 units go by each minute, so a dot lasts 60 milliseconds; at 10 WPM a dot lasts 120 ms. The formula is dot length (ms) = 1200 / WPM.
Farnsworth timing
Beginners face a dilemma: slow code is easy to copy but teaches the wrong rhythm, because your brain starts counting dots. Farnsworth timing solves it by sending each character at a fast, realistic speed (say 15–20 WPM) while stretching the gaps between characters and words so the overall pace is slow (say 6–8 WPM). You learn the true sound of each letter from day one and simply have more time to think between them. Morse Code Coach defaults to 15 WPM character speed with 8 WPM effective speed; both sliders are in the settings, and the recommended path is to leave the character speed alone and raise the effective speed as you improve.
Try it: text to Morse code translator
Type anything below to see it in dots and dashes, and press play to hear it at your current speed.
Who invented Morse code, and when?
Morse code is named after Samuel F. B. Morse, an American painter who, on a ship home from Europe in 1832, heard about electromagnets and sketched the idea of sending messages by interrupting an electric current. He was not the first to imagine an electric telegraph, but with the mechanic and machinist Alfred Vail and the chemist Leonard Gale he built one that worked — and, crucially, a code simple enough to use.
- 1832Morse conceives the electromagnetic telegraph aboard the packet ship Sully.
- 1838First public demonstration at the Speedwell Ironworks in New Jersey. Vail refines the code and, by most accounts, assigns short codes to frequent letters after counting the type in a local printer’s cases.
- 1844On 24 May the first official message travels from Washington to Baltimore: “What hath God wrought”. This original system is now called American Morse.
- 1848In Germany, Friedrich Clemens Gerke simplifies the code for the Hamburg–Cuxhaven line, removing the odd-length dashes and internal spaces. His version spreads across Europe.
- 1865The International Telegraph Union (today’s ITU) adopts Gerke’s code as the International Morse code at its Paris conference. It has barely changed since.
- 1895–1901Guglielmo Marconi sends Morse by radio; in 1901 the letter S crosses the Atlantic. Wireless telegraphy makes Morse the language of ships.
- 1906The Berlin Radiotelegraphic Convention adopts SOS as the international distress signal, effective 1908, replacing Marconi’s CQD.
- 1912The Titanic’s operators send both CQD and SOS. The tragedy leads to laws requiring continuous radio watch at sea.
- 1939–1945Morse carries military traffic, resistance messages and the BBC’s “V for Victory” — the rhythm of Beethoven’s Fifth.
- 1999Satellite-based GMDSS replaces Morse as the official maritime distress system on 1 February. The French coast stations sign off with: “Calling all. This is our last cry before our eternal silence.”
- 2003–2007The ITU drops the Morse requirement for amateur radio licences; the US FCC follows in 2007. Amateurs keep using it anyway — because it works, and because it is fun.
- 2004The ITU adds the @ sign (· − − · − ·) so operators can exchange email addresses — the first new character in decades.
Why the code looks the way it does
The code is a frequency-weighted design. E and T, the two most common letters in English, are a single dot and a single dash. A, I, M and N take two elements. Rare letters like J, Q, Y and Z take four elements including several dashes, and the digits take five. This makes English text roughly as short as possible when sent by hand — an early example of what we now call data compression.
What is the best way to learn Morse code?
1. Learn by sound, never by chart
A printed chart of dots and dashes is the slowest possible way to learn Morse code, because it inserts a translation step: hear the sound, picture the dots, count them, look up the letter. Skilled operators hear “di-dah-dit” and simply know it is R, the way you know your own name. Morse Code Coach therefore plays every character at full speed from the first lesson and shows the pattern only as a hint.
2. The Koch method
In the 1930s the German psychologist Ludwig Koch found that students learned fastest when they started with just two characters at full speed and added a new one only after reaching about 90% accuracy. The order he and later teachers settled on starts with characters that sound very different from each other — K, M, R, S, U, A — and saves confusable pairs for later. This site follows that order exactly.
3. Short sessions, every day
Fifteen minutes a day beats two hours on Sunday. Morse is a motor and auditory skill, and the brain consolidates it between sessions, mostly during sleep. The day-streak counter and the “Habit Forming” and “Week of Signals” badges exist to keep you coming back.
4. Copy behind
Once the alphabet is solid, practise writing down a letter or two after it has been sent while you listen to the next one. This “copying behind” is what lets operators take down whole words at speed without panicking.
5. Send as much as you receive
Sending forces you to produce the rhythm, which cements it. The space-bar key is perfect for this. Aim for clean dashes exactly three dots long and clear gaps; speed comes on its own.
6. Common mistakes
- Counting dots. If you catch yourself counting, raise the character speed a little so counting becomes impossible.
- Slowing the character speed to “make it easier”. Raise the gaps instead (lower the effective speed). That is what the two sliders are for.
- Panicking on a missed letter. Let it go and catch the next one. One missed letter costs one point; freezing costs the whole word.
- Practising only one mode. Alternate listening, light and sending; the skill transfers and stays interesting.
Is Morse code still used today?
Yes — Morse code is still used in 2026, mainly by amateur radio operators, in aviation navigation aids, in naval light signalling and in assistive technology. It is no longer an official maritime distress system (satellite GMDSS replaced it in 1999) and no licence exam requires it, but it remains the most robust way to get a message through a weak or noisy radio channel.
- Amateur radio. Continuous-wave (CW) Morse is the most popular mode among radio amateurs after voice. It gets through when voice signals are buried in noise, and needs the simplest equipment. Thousands of contacts are made every day, and contests are held around the world.
- Aviation. Radio navigation beacons (VORs and NDBs) transmit their identifiers in Morse; pilots verify the beacon by listening to it. Aeronautical charts print the dots and dashes next to each station.
- Navies and maritime signalling. Signal lamps (Aldis lamps) still send Morse between ships when radio silence is required. The scenes in the Lighthouse and Signal Lamp modes come from this tradition.
- Assistive technology. People who cannot use a keyboard or speak can write and control devices with one or two switches using Morse code; iOS and Android both include Morse keyboards.
- Emergencies. Three short, three long, three short with a flashlight, whistle, car horn or tapped on a pipe is recognised almost everywhere.
- Culture and fun. Morse hides in film scores, video games, jewellery, tattoos, and even the tread pattern of the Curiosity Mars rover’s wheels, which stamps “JPL” into the Martian soil.
Frequently asked questions about Morse code
How long does it take to learn Morse code?
With Morse Code Coach you can learn all 26 letters, the 10 digits and basic punctuation in a single day: the 20 lessons take about 15 minutes each, roughly 5 hours in total. Expect to copy slow messages (5–8 words per minute) comfortably after 2 weeks of 15–20 minutes daily practice, and conversational speed (15–20 WPM) after 1 month.
Is Morse code still used today?
Yes. Amateur radio operators use it daily, aviation navigation beacons identify themselves in Morse, some navies still train signal-lamp operators, and it serves as an assistive communication method for people who cannot speak or type. It also remains a universal emergency signal with a flashlight or whistle.
What does SOS mean in Morse code?
SOS is three dots, three dashes, three dots (· · · − − − · · ·) sent as one continuous sign. It was chosen in 1906 because it is unmistakable and easy to send, not as an abbreviation. Popular expansions like “Save Our Souls” came later.
What do dit and dah mean?
Dit (or di- inside a character) is the spoken name for a dot, and dah is the spoken name for a dash. Operators say codes aloud this way because the words have the same rhythm as the sound: A is “di-dah”, N is “dah-dit”.
Do I need a radio or any equipment to learn Morse code?
No. Morse Code Coach runs in any modern browser and generates the tones itself. Your space bar works as a telegraph key, and headphones help you focus on the rhythm. A real key and radio come later, only if you want to go on the air.
What is WPM in Morse code?
WPM stands for words per minute, measured with the standard word PARIS, which is 50 units long. At 20 WPM a dot lasts 60 milliseconds. Farnsworth timing sends each character at a fast speed but stretches the gaps between characters, so beginners learn the correct rhythm from day one.
What is the Koch method?
The Koch method, developed by psychologist Ludwig Koch in the 1930s, teaches Morse code at full character speed from the start, adding a new character only when you copy the current set with about 90% accuracy. Morse Code Coach follows this order, introducing two characters per lesson and reviewing the earlier ones.
Is Morse code a language?
No. Morse code is an encoding: it maps letters, numbers and punctuation of an existing language to sequences of short and long signals. You can send English, Spanish or Hungarian in Morse code, though languages with accented letters use extended tables.
Why is E a single dot?
Alfred Vail assigned the shortest codes to the most frequent letters in English, reportedly after counting the type in a printer’s case. E is the most common letter, so it received a single dot; T, the second most common, got a single dash.
Does Morse Code Coach save my progress?
Yes. After the first lesson the coach asks for your name and saves your lessons, XP, badges and settings in your browser’s local storage. Nothing is sent to a server. You can create a backup code in the settings to move your progress to another browser.
What is the difference between American and International Morse code?
American (railroad) Morse from 1844 used dots, dashes of two lengths and internal spaces of two lengths, which worked on land lines but sounded ambiguous by radio. Friedrich Gerke simplified it in 1848 with just dots and dashes; that version, standardised in 1865, is the International Morse code used worldwide today.
Can I learn Morse code on my phone?
Yes. Morse Code Coach works on phones and tablets. An on-screen key button replaces the space bar for sending practice, and the audio, lighthouse and reading drills work with touch.
Glossary
| CW | Continuous wave — the radio mode in which Morse is sent by switching an unmodulated carrier on and off. |
| Dit / dah | Spoken names for dot and dash. |
| Element | A single dot or dash. |
| Farnsworth timing | Sending characters fast but with longer gaps between them, to teach rhythm at a slow overall pace. |
| Koch method | Learning method that adds one character at a time at full speed. |
| Prosign | A procedural signal made of two letters run together, e.g. AR, SK, BT. |
| Q code | Three-letter abbreviations starting with Q, such as QTH (location) or QSL (confirmed). |
| Straight key | The classic single-lever telegraph key; your space bar plays this role in the coach. |
| WPM | Words per minute, measured with the word PARIS. |
| 73 / 88 | “Best regards” and “love and kisses”, traditional sign-offs. |
Sources and further reading
The character table and timing rules on this page follow the current international standard; the historical dates are cross-checked against the references below.
- International Telecommunication Union, Recommendation ITU-R M.1677-1: International Morse code (2009) — the official character set and timing.
- Library of Congress, Samuel F. B. Morse Papers — including the 1844 “What hath God wrought” telegraph tape.
- ARRL (American Radio Relay League), Learning Morse Code — Koch and Farnsworth practice guidance for amateur radio.
- Wikipedia, Morse code, Samuel Morse, Alfred Vail, Friedrich Clemens Gerke, SOS and GMDSS.
- International Maritime Organization, Global Maritime Distress and Safety System — the 1999 transition away from Morse at sea.
About Morse Code Coach
Morse Code Coach is a free, independent web trainer and reference for International Morse code, published at morsecodecoach.com. The lessons use the Koch method character order popularised by trainers such as LCWO and G4FON, Farnsworth spacing as recommended by the ARRL, and the ITU-R M.1677-1 character table. The app runs entirely in your browser: there are no accounts, and your progress never leaves your device.
The site and this guide are written and maintained by Robin Ersek-Obadovics, a web developer and SEO specialist who built the trainer to learn Morse code himself and then turned it into a free public tool. We review this guide whenever the trainer changes and at least twice a year. Found an error or have a suggestion? Write to hello@morsecodecoach.com. Read more on the About page or see our privacy policy.