Encoding
Morse Code Translator
Translate text to Morse code and decode Morse back to letters. Supports letters, digits, punctuation, and word separators.
Encoding
Caesar Cipher / ROT13
Encode or decode text with the classic Caesar shift cipher. Adjust the shift from 0 to 25 with a slider, jump to ROT13, or brute-force all 26 shifts to reveal a hidden message.
Tool Summary Answer Block
This tool accepts structured input and returns deterministic output in the browser with no server upload.
- Tool name
- Caesar Cipher / ROT13
- Input intent
- Provide source content to transform, validate, or analyze.
- Output intent
- Receive normalized output suitable for copy, reuse, or debugging.
- Example input
- Attack at dawn!
- Example output
- Nggnpx ng qnja!
Non-letters (digits, punctuation) are left untouched.
Show all 26 shifts (brute-force preview)
+0Attack at dawn!
+1Buubdl bu ebxo!
+2Cvvcem cv fcyp!
+3Dwwdfn dw gdzq!
+4Exxego ex hear!
+5Fyyfhp fy ifbs!
+6Gzzgiq gz jgct!
+7Haahjr ha khdu!
+8Ibbiks ib liev!
+9Jccjlt jc mjfw!
+10Kddkmu kd nkgx!
+11Leelnv le olhy!
+12Mffmow mf pmiz!
+13Nggnpx ng qnja!
+14Ohhoqy oh rokb!
+15Piiprz pi splc!
+16Qjjqsa qj tqmd!
+17Rkkrtb rk urne!
+18Sllsuc sl vsof!
+19Tmmtvd tm wtpg!
+20Unnuwe un xuqh!
+21Voovxf vo yvri!
+22Wppwyg wp zwsj!
+23Xqqxzh xq axtk!
+24Yrryai yr byul!
+25Zsszbj zs czvm!
Tool Introduction
Encode or decode text with the classic Caesar shift cipher. Adjust the shift from 0 to 25 with a slider, jump to ROT13, or brute-force all 26 shifts to reveal a hidden message.
Tool Overview
The Caesar cipher shifts each letter by a fixed number of positions in the alphabet. ROT13 is the special case where the shift is 13, which makes it self-inverse (encoding twice returns the original text). Digits, punctuation, and whitespace are left unchanged. This is a classical cipher intended for puzzles and learning — it provides no real cryptographic security.
Use Cases
- Use Caesar Cipher / ROT13 when you need fast encode and decode text with a classic caesar shift cipher. includes a slider, a rot13 preset, and a brute-force preview of all 26 shifts.
- Handle encoding workflows directly in the browser with no install required.
- Support SEO long-tail intent by covering quick checks, troubleshooting, and one-off conversions.
Input/Output Examples
ROT13 (shift 13).
Input Intent
Attack at dawn!
Output Intent
Nggnpx ng qnja!
Shift 3, decoded.
Input Intent
Khoor Zruog
Output Intent
Hello World
FAQ
Is the Caesar cipher secure?+
No. It's trivially broken by trying all 26 shifts, which is exactly what the brute-force panel does. Treat it as a learning or puzzle tool, not real cryptography.
How do I decode an encoded message?+
Either use the Invert button to flip your current shift, or slide through the values until the output looks like readable text.
Does it handle non-English alphabets?+
The shift only applies to the 26 letters of the basic English alphabet. Other characters pass through unchanged.
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