Replace uppercase vowels with lowercase

This tool replaces uppercase vowels (A, E, I, O, U) with their lowercase versions. You can choose to apply it to all words, only at word start or inside words, target specific vowels, skip certain words, or limit by casing conditions.

Input

Output

Processing Modes:

Replace All Uppercase Vowels
Convert all A, E, I, O, U into a, e, i, o, u everywhere in the text.

Replace Only at Word Start
Convert uppercase vowels only if they appear at the beginning of a word.

Replace Only Inside Words (Not First Letter)
Skip first letters and only lowercase vowels inside words.

Replace Only Specific Uppercase Vowels
Choose which uppercase vowels to convert (e.g., A,E).

Skip Words in Exception List
Do not replace vowels inside these words.

Examples:

Replace All Uppercase Vowels

All A, E, I, O, U are converted to a, e, i, o, u.

Before:

HELLO, Are YOU Excited About AI?

After:

hEllO, Are YOU ExcIted AbOUt aI?

Replace Only at Word Start

Only vowels starting a word are converted.

Before:

Apple Is Over Everyone Under Ice.

After:

apple is over everyone under ice.

Replace Only Inside Words

Only converts vowels inside words, not the first letter.

Before:

UnIqUE IslAnd ErA

After:

UnIqUE IslAnd ErA

Replace Only Specific Uppercase Vowels

Only selected vowels like A and E are replaced.

Before:

EAGLE Over AUSTRALIA Is Unusual.

After (A, E):

eAGLE Over aUSTRALIA Is Unusual.

Skip Words in Exception List

Words like “Apple” and “USA” are untouched.

Before:

Apple USA Umbrella Excited Over Earth.

After (skipping Apple,USA):

Apple USA Umbrella excited over earth.