IntelliJ plugin - https://plugins.jetbrains.com/plugin/2162

Provides actions for text manipulation:

Switch case:

• Switch style (camelCase, kebab-lowercase, KEBAB-UPPERCASE, snake_case, SCREAMING_SNAKE_CASE, dot.case, words lowercase, Words Capitalized, PascalCase)
• To SCREAMING_SNAKE_CASE (or to camelCase)
• To snake_case (or to camelCase)
• To dot.case (or to camelCase)
• To kebab-case (or to camelCase)
• To kebab-case (or to snake_case)
• To camelCase (or to words)
• To PascalCase (or to camelCase)
• Capitalize selected text
• To UPPER CASE
• To lower case
• Invert case

Un/Escape:

• Un/Escape selected Java text
• Un/Escape selected JavaScript text
• Un/Escape selected HTML text
• Un/Escape selected XML text
• Un/Escape selected SQL text
• Un/Escape selected PHP text
• Convert diacritics(accents) to ASCII
• Convert non ASCII to escaped Unicode
• Convert escaped Unicode to String

Encode/Decode:

• Encode selected text to MD5 Hex16
• De/Encode selected text as URL
• De/Encode selected text to Base64

Increment/Decrement:

• Increment/decrement all numbers found.
• Duplicate line and increment/decrement all numbers found.
• Create sequence - Keep first number, replace all other by incrementing
• Increment duplicate numbers

Sort with natural order:

• Reversing order of lines
• Shuffle lines
• Sort case-sensitive A-z
• Sort case-sensitive z-A
• Sort case-insensitive A-Z
• Sort case-insensitive Z-A
• Sort line length asc., desc.
• Sort hexadecimally
• Sort lines by subselection - only one selection/caret per line is handled

Align:

• Format selected text to columns/table by a chosen separator/delimiter
• Align text to left/center/right

Filter/Remove/Trim...:

• Grep selected text, All lines not matching input text wil be removed. (Does not work in column mode)
• Inverted Grep
• Trim selected text
• Trim all spaces in selected text
• Remove all spaces in selected text
• Remove duplicate lines
• Keep only duplicate lines
• Remove empty lines
• Remove all newlines

Other:

• Swap Characters/Selections/Lines/Tokens
• Swap single quote to double quote
• Switch file path separators: Windows<->UNIX

Actions are available under Edit menu, or via the shortcut "alt M" and "alt shift M". You can setup your own shortcuts for better usability or customize the popup in File | Settings | Appearance & Behavior | Menus and Toolbars.

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