ROT18

Client

Apply twice to recover original.

About ROT18

ROT13 on letters plus ROT5 on digits—self-inverse. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • ROT13 & Caesar cipher — Rotate Latin letters A–Z and a–z: ROT13 (self-inverse) or Caesar shift 0–25—other characters unchanged, local only. for the next text or markup step in your edit loop.
  • ROT47 encoder — Rotate printable ASCII by 47 positions—broader than ROT13 for symbols and digits. for the next text or markup step in your edit loop.
  • Caesar decode — Decode Caesar cipher with shift key. for the next text or markup step in your edit loop.
  • Atbash decode — Atbash is self-inverse—swap A↔Z. for the next text or markup step in your edit loop.

Common use cases

  • ROT18 for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.