Replace each letter with the next letter in the alphabet

This tool shifts each letter in your text to the next one in the alphabet. It supports different modes like shifting only lowercase, only uppercase, skipping specific letters, or disabling looping from Z to A.

Input

Output

Processing Modes:

Replace All Letters with Next Letter
Shift every letter forward in the alphabet (a → b, z → a).

Replace Only Lowercase Letters
Shift only lowercase letters; keep uppercase unchanged.

Replace Only Uppercase Letters
Shift only uppercase letters; keep lowercase unchanged.

Skip Specific Letters
Do not shift letters you list below (case-sensitive).

Replace Without Looping
z and Z are skipped (not wrapped to a/A).

Examples:

Replace All Letters

Every letter moves one step forward (a → b, z → a)

Before:

Crazy zebra jumps high!

After:

Dsbaz afcsb kvnqt iij!

Replace Only Lowercase

Uppercase stays as-is.

Before:

Hello World!

After:

Hfmmp Xpsme!

Replace Only Uppercase

Lowercase stays unchanged.

Before:

Hello World!

After:

Iello Xorld!

Skip Specific Letters

Letters z, e, and o will not be changed.

Before:

Zero effort zone!

After (skipping z,e,o):

Zfsp effsps zpof!

Replace Without Looping

z and Z are left unchanged.

Before:

Buzz, Zip, Zebra!

After:

Cvaa, Ajq, Afcsb!