ROT13 Encoder / Decoder

Encode or decode text with ROT13 cipher online for free.

Rotates letters A–Z by 13. Self-inverse.

Input

Output (live)

Apply again to decode

Gur dhvpx oebja sbk whzcf bire gur ynml qbt 123

Original	→	Encoded
T	→	G
h	→	u
e	→	r
q	→	d
u	→	h
i	→	v
c	→	p
k	→	x
b	→	o
r	→	e
o	→	b
w	→	j
n	→	a
f	→	s
o	→	b
x	→	k
j	→	w
u	→	h
m	→	z
p	→	c

حول هذه الأداة

Apply the ROT13 substitution cipher to any text. ROT13 replaces each letter with the letter 13 positions ahead in the alphabet. Since the alphabet has 26 letters, applying ROT13 twice returns the original text.

كيفية الاستخدام

Enter Text
Type or paste text to encode with ROT13.
Encode
The result appears instantly. ROT13 is its own inverse — encode again to decode.
Copy
Copy the encoded/decoded text.

حالات الاستخدام

Spoiler Hiding

Hide spoilers or puzzle answers in plain sight using ROT13.

الأسئلة الشائعة

Is ROT13 secure for encryption?

No. ROT13 is a simple letter substitution with no key. It is only useful for obscuring text, not for real security.

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Original	→	Encoded
T	→	G
h	→	u
e	→	r
q	→	d
u	→	h
i	→	v
c	→	p
k	→	x
b	→	o
r	→	e
o	→	b
w	→	j
n	→	a
f	→	s
o	→	b
x	→	k
j	→	w
u	→	h
m	→	z
p	→	c

Original	→	Encoded
T	→	G
h	→	u
e	→	r
q	→	d
u	→	h
i	→	v
c	→	p
k	→	x
b	→	o
r	→	e
o	→	b
w	→	j
n	→	a
f	→	s
o	→	b
x	→	k
j	→	w
u	→	h
m	→	z
p	→	c

حول هذه الأداة

كيفية الاستخدام

Enter Text

Encode

Copy

حالات الاستخدام

Spoiler Hiding

الأسئلة الشائعة

Is ROT13 secure for encryption?

أدوات ذات صلة

Original	→	Encoded
T	→	G
h	→	u
e	→	r
q	→	d
u	→	h
i	→	v
c	→	p
k	→	x
b	→	o
r	→	e
o	→	b
w	→	j
n	→	a
f	→	s
o	→	b
x	→	k
j	→	w
u	→	h
m	→	z
p	→	c