ROT13, ROT47 & Caesar Workbench
Encode or decode ROT13, ROT47 and Caesar text with adjustable shifts, instant preview, projects and text export.
Ready. Explore the example or use the input controls to begin.
Scope and practical limits
ROT13 and Caesar change ASCII letters. ROT47 changes printable ASCII characters. Other characters are preserved. These are puzzles and obfuscation, not secure encryption.
The tool processes your work in the browser. The website’s advertising and analytics follow its privacy and consent settings. Projects are not saved automatically. Media workspaces export their files directly rather than storing them in project JSON.
Using ROT13, ROT47 & Caesar Workbench
Use a negative Caesar shift to reverse an earlier positive shift.
- Start with the included example, or enter your own input.
- Adjust the settings and review the preview and any validation message.
- Download the result or save a project to continue later.
Example
Apply ROT13 twice to Hello to recover Hello.
Questions & answers
Can I protect a password with ROT13?
No. Rotation ciphers are trivially reversible and provide no meaningful security.
Is my project saved automatically?
No. Use Save project to keep an editable copy. Processing runs in the browser; site ads and analytics follow the website privacy and consent settings.
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