Versioned reference

International Morse code alphabet

Filter the exact table used by the translator. Every playable signal is generated from the same data, so the reference and the product cannot drift apart.

Source: ITU-R M.1677-1 (10/2009), reviewed 20 August 2026. Linguistic extensions are not mixed into this base table. Technical source ↗

International Morse code alphabet

Filter the Morse table
51
Symbol Morse pattern Category Listen
A
.-
Letters
B
-...
Letters
C
-.-.
Letters
D
-..
Letters
E
.
Letters
É
..-..
Letters
F
..-.
Letters
G
--.
Letters
H
....
Letters
I
..
Letters
J
.---
Letters
K
-.-
Letters
L
.-..
Letters
M
--
Letters
N
-.
Letters
O
---
Letters
P
.--.
Letters
Q
--.-
Letters
R
.-.
Letters
S
...
Letters
T
-
Letters
U
..-
Letters
V
...-
Letters
W
.--
Letters
X
-..-
Letters
Y
-.--
Letters
Z
--..
Letters
0
-----
Numbers
1
.----
Numbers
2
..---
Numbers
3
...--
Numbers
4
....-
Numbers
5
.....
Numbers
6
-....
Numbers
7
--...
Numbers
8
---..
Numbers
9
----.
Numbers
.
.-.-.-
Punctuation
,
--..--
Punctuation
:
---...
Punctuation
?
..--..
Punctuation
'
.----.
Punctuation
-
-....-
Punctuation
/
-..-.
Punctuation
(
-.--.
Punctuation
)
-.--.-
Punctuation
"
.-..-.
Punctuation
=
-...-
Punctuation
+
.-.-.
Punctuation
×
-..-
Punctuation
@
.--.-.
Punctuation

ITU

Procedural signals

These are operational signals defined by the recommendation. Some share a pattern with an ordinary character, so the decoder prefers the written character unless the procedural meaning is unambiguous.

Understood ...-.
Error (eight dots) ........
Invitation to transmit / K -.-
Wait .-...
End of work ...-.-
Starting signal -.-.-

Read the rhythm, not the typography

The spaces inside and between patterns carry meaning. Listen for the complete shape of a character instead of counting isolated marks.