Typed, sound, light or photo

Morse decoder

Paste dots and dashes in the box and read the text as you type. Morse you hear, see or photograph has its own decoder below.

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Typed Morse

How the box reads what you paste.

Morse copied from a puzzle, a chat or a forum rarely comes in one neat format. Each row is run through the decoder above when this page loads.

How typed Morse is read
Case	You paste	Reads
One space between letters, a slash between wordsThe standard way to write Morse code.	`.. / -- .. ... ... / -.-- --- ..-`	I MISS YOU
Underscores for dashesAn underscore reads as a dash, so each pair is an M.	`__ __`	MM
Round dots and long dashesBullets and the long dashes that copying brings along read as dots and dashes.	`•••• •• / — •••• • •—• •`	HI THERE
Radio shorthandDecoded radio traffic is mostly abbreviations: CQ calls any station, DE means from, K invites a reply.	`-.-. --.- / -.. . / -.-`	CQ DE K
Letters with no spaces between themHELLO run together is one long group that matches no letter, so it shows as a question mark.	`......-...-..---`	?

Written with no spaces?

Morse written with no spaces can stand for many messages: six dots could be HI, IH, SS or EEEEEE. Paste it into the decoder made for it, which tries every way to split it.

Morse decoder without spaces

Check it by hand

To check a letter yourself, find it on the Morse code alphabet chart. For CQ, DE, K and the other shorthand, see the Morse abbreviations and prosigns.

Pick by the source

Morse in another form? Pick the decoder for its source.

Choose by the signal, not where it came from: a voice memo, a video and a radio recording are all sound.

Sound, video and pictures are decoded on your device and never uploaded.

Tested, not promised

How accurate each decoder is.

Typed Morse is exact. A signal decoder is only as good as the signal, so here is what each one is tested on and what makes it slip.

How accurate each decoder is
Decoder	Tested on	Slips on
The box above (typed Morse)	Exact: each group is looked up in the code table, so the same Morse always gives the same text.	Letters with no space between them, or a stray space inside a letter.
Morse code audio translator	Recordings from 5 to 40 WPM, with the speed reported; heavy hiss, hum and crackle; a fading signal; Farnsworth spacing; two stations at different pitches. It listens from 300 to 1,500 Hz.	Another sound louder than the Morse, clicks with no pitch, two stations on the same pitch, very uneven hand sending.
Microphone decoder	Live sound reads the same as a file, first letter included, from 5 to 40 WPM; it waits until it is sure it hears Morse, so static stays blank.	Knocks and clicks, a louder station at another pitch (tap the right one on the waterfall), a phone that turns its speaker down while the microphone is on.
Morse code light translator	A lamp filmed at 30 frames a second read at 20 WPM but not at 22; at 60 frames a second it read 35 WPM. Uneven frame times and a faint lamp at full Sensitivity read too.	Auto exposure that dims the picture, a light that never goes fully dark, a shaking camera.
Morse code image translator	Pen drawings, chalk on a dark board, several rows, specks of dust left out, short hand-drawn dashes, faint pencil once the threshold is set by hand.	Dots and dashes drawn the same length, marks that touch, Morse around a curve, steep angles.

One limit is shared by the sound and light decoders: three marks of one length, such as TTT, can’t show their own speed, so they read as S until you set the speed by hand.

Good questions

Frequently asked questions.

About decoding Morse code

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How do I decode Morse code?

Paste the dots and dashes into the box at the top of this page, with a space between letters and a slash between words, and the text appears as you type: .... .. reads HI.

If the Morse is a sound, a light or a picture, open the decoder for that source from the cards above. Each one shows the dots and dashes it found beside the text, so you can check them.

What if the Morse has no spaces between letters?

Then one string can be read many ways. Six dots could be HI, IH, SS or EEEEEE, so the box shows a single question mark.

The Morse decoder without spaces tries every way to split a run-together string and lists the readings. If you know where the letters break, add a space at each break and paste it here again.

Which Morse decoder is the most accurate?

Typed Morse is exact: each group is looked up in a fixed table, so the same input always gives the same text. The signal decoders depend on the signal.

In the site’s tests the sound decoders read 5 to 40 WPM through heavy hiss, and the light translator read a lamp at 20 WPM on a camera filming 30 frames a second. The accuracy table lists what trips each one.

Can AI decode Morse code?

These decoders don’t use AI. They measure every beep, flash or mark, sort them by length into dots, dashes and gaps, and look each letter up in the ITU table, so they can show the code behind every letter. A chatbot can often read a short typed message, but it predicts its answer instead of looking codes up, so paste its result into the box above to check it.

Can Google translate Morse code?

No. Morse code isn’t among the languages Google’s translation service supports, so it won’t turn dots and dashes into words.

Gboard, Google’s phone keyboard, has a Morse layout for typing in dots and dashes, but it doesn’t decode a message someone sent you. Paste the message into the box at the top of this page instead.

What is “I miss you” in Morse code?

I miss you is .. / -- .. ... ... / -.-- --- ..-, three words and eight letters. Paste it into the box above to read it back, or switch the box to Text to Morse and type any phrase to get its code. Press Play to hear it at 18 WPM, and download it as an MP3 if you want to keep it.

What does __ __ mean in Morse code?

It reads MM. An underscore is a common way to type a dash, so each pair of underscores is --, the letter M.

The box above reads underscores, long dashes and round dots as dashes and dots, so you can paste Morse exactly as you found it. Check any letter on the Morse code alphabet chart.

Is there a Morse decoder app?

You don’t need to install one. The box on this page and every decoder linked from it run in the browser on phones, tablets and computers, and use the device’s own microphone or camera once you allow it. To open one like an app, add its page to your home screen from the browser’s menu.

Are the Morse decoders free and private?

Yes. Every decoder is free, with no sign-up.

Sound, video and pictures are decoded on your device and never uploaded, and the microphone and camera stay off until you start them. The image translator’s text reader, Tesseract, is served from this site and runs in your browser too. Typed Morse is decoded in the page as you type.

Sources

Last checked November 2026

Looking for something else? See all Morse code tools: trainers, makers and games.

Want to answer in Morse?

Type your reply. Hear it, flash it, send it.

The two-way Morse code translator turns your words into dots and dashes and plays them as sound, light or vibration.

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