waybar-dwl-window(5) File Formats Manual waybar-dwl-window(5)

# [NAME](#NAME)

waybar - dwl window module

# [DESCRIPTION](#DESCRIPTION)

The **window** module displays the title of the currently focused window in DWL

# [CONFIGURATION](#CONFIGURATION)

Addressed by **dwl/window**

**format**:  
typeof: string  
default: {title}  
The format, how information should be displayed.

**rotate**:  
typeof: integer  
Positive value to rotate the text label (in 90 degree increments).

**max-length**:  
typeof: integer  
The maximum length in character the module should display.

**min-length**:  
typeof: integer  
The minimum length in characters the module should accept.

**align**:  
typeof: float  
The alignment of the label within the module, where 0 is left-aligned and 1 is right-aligned. If the module is rotated, it will follow the flow of the text.

**justify**:  
typeof: string  
The alignment of the text within the module's label, allowing options 'left', 'right', or 'center' to define the positioning.

**on-click**:  
typeof: string  
Command to execute when clicked on the module.

**on-click-middle**:  
typeof: string  
Command to execute when middle-clicked on the module using mousewheel.

**on-click-right**:  
typeof: string  
Command to execute when you right-click on the module.

**on-update**:  
typeof: string  
Command to execute when the module is updated.

**on-scroll-up**:  
typeof: string  
Command to execute when scrolling up on the module.

**on-scroll-down**:  
typeof: string  
Command to execute when scrolling down on the module.

**smooth-scrolling-threshold**:  
typeof: double  
Threshold to be used when scrolling.

**tooltip**:  
typeof: bool  
default: true  
Option to disable tooltip on hover.

**rewrite**:  
typeof: object  
Rules to rewrite the module format output. See **rewrite rules**.

**icon**:  
typeof: bool  
default: false  
Option to hide the application icon.

**icon-size**:  
typeof: integer  
default: 24  
Option to change the size of the application icon.

**expand**:  
typeof: bool  
default: false  
Enables this module to consume all left over space dynamically.

# [FORMAT REPLACEMENTS](#FORMAT_REPLACEMENTS)

**{title}**: The title of the focused window.

**{app\_id}**: The app\_id of the focused window.

**{layout}**: The layout of the focused window.

# [REWRITE RULES](#REWRITE_RULES)

**rewrite** is an object where keys are regular expressions and values are rewrite rules if the expression matches. Rules may contain references to captures of the expression.

Regular expression and replacement follow ECMA-script rules.

If no expression matches, the format output is left unchanged.

Invalid expressions (e.g., mismatched parentheses) are skipped.

# [EXAMPLES](#EXAMPLES)

```
"dwl/window": {
	"format": "{}",
	"max-length": 50,
	"rewrite": {
		"(.*) - Mozilla Firefox": "🌎 $1",
		"(.*) - zsh": "> [$1]"
	}
}
```

2026-10-17

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Document: waybar-dwl-window(5) from waybar 0.15.0-r1 (Chainguard OS)