Text Formatter

Katakana (ja)	NoneFullHalf
Alphabet	NoneFullHalf
Number	NoneFullHalf
Symbol	NoneFullHalf
Space	NoneFullHalf
Letter case	NoneUnify to uppercase (ABC)Unify to lowercase (abc)
Indent	NoneTab to X SpacesX Spaces to TabX =

Delete line	Delete blank lines (only line breaks)Delete blank linesDelete line feed code
Delete space	Delete allDelete only the beginning of the lineDelete only the end of the line
Delete fullwidth Space	Delete allDelete only the beginning of the lineDelete only the end of the line
Delete tab	Delete allDelete only the beginning of the lineDelete only the end of the line

This is a tool that Unify uppercase and lowercase, removing spaces, and indenting.

Symbol: !”#$%&()*+,-./:;<=>?@[]^_`{|}~
Converts automatically when entering text or changing settings.
This tool does not communicate. This site does not collect input values.

Convenient Regex

If you master regular expressions (regex), you can do most of the things without tools. Regex is a technology that allows text search under various conditions.

By the way, this tool also uses regex in the program. For example, “Delete blank lines” is a delete the character that matches the regex ^\s*?$(\r\n|\r|\n)?. This symbol is called a metacharacter and has an abstract meaning. Regex is searching by combining these metacharacters.

Metacharacter	Meaning
`^`	Beginning of line
`\s*?`	0 to n whitespace
`$`	End of line
`(\r\n\\|\r\\|\n)?`	0 to 1 line feed

I also wrote an article on regex, so please have a look if you like.

Regex: Metacharacters
Regex: Delete lines that match the conditions