Does Caesar Cipher upload my file or text to Tool-You servers?

No. Caesar Cipher runs in this browser tab. Files stay on the device. Limit note: Non-empty text. Digit mode uses shift mod 10. Not for secrets.

Should I use ROT47 instead of Caesar Cipher?

Use Caesar Cipher when you need Shift letters by N; optional digit rotation. Use ROT47 when you need ROT47 with changed count. They share a category (Crypto) but not the same job.

Caesar Cipher

Shift letters by N; optional digit rotation.

Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets.

What Caesar Cipher does

Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets.

The interactive controls for Caesar Cipher load after this article so crawlers still read the instructions. Path /crypto/caesar is the canonical address. Work happens on this device; Tool-You does not take a copy of the file or pasted text for Caesar Cipher.

How to use Caesar Cipher

Keep this tab on Caesar Cipher (/crypto/caesar). Pasting into the wrong Crypto tool (for example ROT47) changes the job.
Paste or type the input Caesar Cipher expects. Path hint: crypto · caesar. Shift letters by N; optional digit rotation.
Apply the Caesar Cipher action only. XOR Hex is a different transform (Bytewise XOR of two hex strings; optional uppercase.). Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets.
Copy the output of Caesar Cipher if you need it elsewhere. Size/complexity still follows: Non-empty text. Digit mode uses shift mod 10. Not for secrets.
If the text job is actually ROT47 with changed count., leave Caesar Cipher and open ROT47.

When not to use Caesar Cipher

Skip Caesar Cipher when a neighbor tool matches better — start with ROT47 or XOR Hex — or when the description already warns the job will fail. In the tool’s own words: Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets.

Questions about Caesar Cipher

What does Caesar Cipher do that other Crypto pages on this site do not?: Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets. Short version: Shift letters by N; optional digit rotation.
Does Caesar Cipher upload my file or text to Tool-You servers?: No. Caesar Cipher runs in this browser tab. Files stay on the device. Limit note: Non-empty text. Digit mode uses shift mod 10. Not for secrets.
Should I use ROT47 instead of Caesar Cipher?: Use Caesar Cipher when you need Shift letters by N; optional digit rotation. Use ROT47 when you need ROT47 with changed count. They share a category (Crypto) but not the same job.
What are the limits of Caesar Cipher?: Non-empty text. Digit mode uses shift mod 10. Not for secrets. Also: Shifts Latin letters by a whole-number offset. Optional digit 0–9 rotation. Unlike ROT47 this only moves letters (and optional digits). Empty text fails. Not encryption for secrets.