Case Convert

Convert text between naming conventions — camelCase, kebab-case, snake_case, CONSTANT_CASE and 14 more — without leaving the launcher. Useful when you have a label in one shape and need it in another: a heading that has to become a file name, a database column that has to become a JSON key.

Plugin

Field	Value
ID	kjvdven/case-convert
Entries	Launcher provider: case
Launcher Prefix	/case

Requirements

wl-paste (from wl-clipboard) on PATH, and only for reading the primary selection. Without it the plugin still works and falls back to the clipboard.

Usage

Type /case in the launcher, then the text to convert:

/case parse http response

Every conversion of that text is listed, one per row, with the conversion name as the subtitle. Enter copies the highlighted row to the clipboard. The launcher's category filter narrows the list to Programming, Text or Fun.

Leave the query empty and the input comes from your primary selection instead, falling back to the clipboard — select text in any window, open the launcher, type /case, press Enter.

Start the query with > to filter the conversions by name while still using the selection as input, so /case >kebab shows only the kebab conversions.

Input this is an example produces:

Category	Conversion	Result
Programming	camelCase	thisIsAnExample
Programming	PascalCase	ThisIsAnExample
Programming	kebab-case	this-is-an-example
Programming	snake_case	this_is_an_example
Programming	CONSTANT_CASE	THIS_IS_AN_EXAMPLE
Programming	dot.case	this.is.an.example
Programming	path/case	this/is/an/example
Programming	Pascal_Snake_Case	This_Is_An_Example
Programming	KEBAB-UPPER-CASE	THIS-IS-AN-EXAMPLE
Programming	Header-Case	This-Is-An-Example
Text	Title Case	This Is an Example
Text	Capital Case	This Is An Example
Text	Sentence case	This is an example
Text	no case	this is an example
Text	lower case	this is an example
Text	UPPER CASE	THIS IS AN EXAMPLE
Fun	sWAP cASE	THIS IS AN EXAMPLE
Fun	AlTeRnAtInG cAsE	ThIs Is An ExAmPlE

Title Case lowercases small words (a, of, the, …) unless they are first or last; Capital Case capitalizes every word. The word-based conversions rebuild the text from its words, so punctuation between words disappears — lower case, UPPER CASE, sWAP cASE and AlTeRnAtInG cAsE work character by character and keep it.

Settings

Setting	Type	Default	Description
input_source	select	auto	Where text comes from when the query is empty. auto tries the primary selection and falls back to the clipboard; selection and clipboard use only that one.
preserve_casing	bool	true	Keep the casing inside each word, so NASA rocks becomes NASA_Rocks rather than Nasa_Rocks. Conventions that are lowercase by definition (kebab-case, snake_case, …) ignore this.
notify_on_copy	bool	true	Show a notification naming the conversion after copying.

Notes

• Processes. With an empty query the plugin runs wl-paste --primary --no-newline once per query to read the selection. Nothing else is spawned, no files are written, and there is no network access.
• Clipboard. Activating a row writes it to the clipboard as text/plain. Plugin launcher providers cannot auto-paste, so copying is as far as it goes.
• Unicode. Casing covers ASCII and the Latin-1 Supplement block, so café → CAFÉ. Letters beyond it (Ł, Ż, Ș, Greek, Cyrillic) pass through uncased rather than corrupted, and ß stays ß, having no single-character uppercase.
• Compositor. Reading the selection is Wayland-only through wl-paste; everything else is compositor-independent.
• Compact launcher. Each row names its conversion in the subtitle, and a compact launcher (shell.launcher.compact = true) hides subtitles. Turn compact off to tell Hello_World from Hello-World at a glance.

Source and conversion tests: https://github.com/kjvdven/noctalia-case-convert