Morse Code Translator
Convert text to Morse code and back, with a reference table and adjustable audio
文本转摩斯码
摩斯码转文本
摩斯码（字母之间一个空格，单词之间用 / 分隔）
解码结果
摩斯码没有大小写与重音，因此解码统一输出大写；标点符号在原标准里是独立码组，只要输入时按对照表分隔就能还原。
声音播放
字/分 WPM
播放取自当前标签页的内容：编码页播放转换结果，解码页直接播放你输入的码组。
摩斯电码对照表（International Morse，1939 年定型）
记忆要点：常用字母短（E 一点、T 一划、I 两点、A 点划），生僻字母长（Q、Z 四划以上）。数字一律五位，1–5 点在前、6–9 划在前，0 为五划，因此 ..... 是 5、----- 是 0。
常用信号与快捷样例
| 信号 | 摩斯码 | 含义与用法 |
|---|---|---|
| SOS | ... --- ... | 国际遇难求救信号，1906 年柏林会议确立。它本身没有字面含义，只因节奏独特、不易听错而被选中 |
| CQ | -.-. --.- | 呼叫任何电台（谐音 seek you），业余无线电与海事通信通用 |
| DE | -.. . | 「……发自」，写在呼号或台名之前 |
| 73 | --... ..--- | 结束语「致意」，相当于祝好；88 用于「爱与吻」 |
| QTH / QRM / QSB | --.-. -.... / --.- .-. -- / --.- ... -... | 三字母 Q 简语：QTH 询问位置，QRM 指干扰，QSB 指信号衰落，用极短码表达整句常用语 |
| AR | .-.-. | 一段传输结束的分隔符，相当于换行 |
About this tool
Morse code is less about the alphabet than about rhythm and spacing. This tool combines conversion, a reference table and audio playback, so you can look a code up or listen to it:
- Both directions: text to Morse and Morse to text, covering 26 letters, 10 digits and 20 punctuation marks
- Audio playback: synthesized in the browser at 5 to 40 WPM with a 500 to 800 Hz tone, played dot and dash in order
- Standard timing: dot 1 unit, dash 3 units, letter gap 3 units and word gap 7 units, following the PARIS standard
- Tolerant input: accepts
.or·,-or—, with slashes or double spaces as word separators - Error hints: names the characters that cannot be encoded and the runs that cannot be decoded
- Signal reference: SOS, CQ, DE, 73, AR and common Q abbreviations with their patterns
When to use it
- Practicing receiving and copying code for an amateur radio license
- Demonstrating encoding and redundancy in a classroom
- Decoding dot-dash clues in puzzle games, escape rooms and easter eggs
- Checking a distress pattern before sending it with a light, knock or whistle
- Turning short text into Morse audio for a notification or asset
Timing rules
| Element | Duration in dots | Notes |
|---|---|---|
| Dot | 1 | The base unit; dot milliseconds are about 1200 divided by WPM |
| Dash | 3 | Always three dots long |
| Intra-character gap | 1 | Between dots and dashes inside one letter |
| Letter gap | 3 | As long as a dash, which is how E and I stay distinct in a stream |
| Word gap | 7 | Written as a slash in text; the length difference prevents ambiguity |
Common questions
- How do I send Chinese in Morse? International Morse covers Latin letters, digits and punctuation. The traditional route is a four-digit telegraph code first, then the digits in Morse; this tool converts digits directly, so Chinese must be changed to pinyin or a telegraph code
- Why is decoded text all uppercase? Morse itself carries no case information, so output is normalized to uppercase
- Does SOS stand for Save Our Ship? No. It is simply the unmistakable rhythm
... --- ...; the letters carry no meaning, and CQD was used earlier - Why do I keep hearing H as 4?
....and....-differ only in the final dash; listen for word gaps rather than counting letters - What speed should I practice at? Start at 8 to 13 WPM and move to 15 to 20 once you can copy reliably; higher speeds shorten letter gaps and cause confusion
Conversion and playback run entirely in the browser with no server involved.