Windows 10/11 tiling window manager

Native tiling control for serious Windows work.

Astur adds Left Alt controls, dwindle and master layouts, workspaces, and a status bar without replacing the Windows shell.

Move or resize any window from anywhere with Left Alt.
Tile active windows into predictable dwindle or master layouts.
Run as a single portable Rust exe with no installer or service.

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Windows app. Use Windows 10 or 11 x64. On macOS, Linux, Android, or iOS, download from a Windows PC or build only for Windows targets.

1portable exe

10workspace keys

0setup steps

Astur ws 1 12:42

Terminal

Editor

Browser

dwindle layout - 8px gaps - active border

Astur running
Left Alt + drag     move window
Left Alt + right    resize corner
Alt + T             toggle tiling
Alt + 1..9,0        switch workspace

Why it exists

Windows ergonomics for keyboard-heavy workflows.

Windows already has the app ecosystem. Astur keeps that intact and adds the missing window-manager layer: fast pointer movement, keyboard focus, real tiling layouts, workspace switching, and config that can be changed without reinstalling anything.

Core controls

Focused controls for daily window management.

Full hotkey reference

Mouse

Alt-drag anywhere

Hold Left Alt and drag from any point in a window. No title-bar targeting and no per-app configuration.

Resize

Nearest-corner resizing

Right-drag selects the nearest corner, keeps the opposite corner anchored, and shows a clear resize marker.

Layout

Dwindle or master tiling

Use dwindle by default, or switch to master layout for a main work area plus stack.

Workspaces

Ten workspace keys

Switch with Alt+1-9,0 and move windows with Alt+Shift. Shared and per-monitor workspace modes are configurable.

Focus

Promote, swap, float

Promote a focused window, swap layout order, move by direction, or float one window while the rest stay tiled.

Runtime

Native and lightweight

Built as a native Rust binary using Win32 hooks and DWM styling. No installer, no service, no Electron shell.

Quick start

Run it in under a minute.

Download

Get the latest Windows x64 exe from GitHub Releases. Astur is Windows-only.

Run

Double-click the exe or launch from a terminal. Run as admin only if you need to manage elevated windows.

astur-windows-x64.exe

Control windows

Use Left Alt as the Astur modifier. Right Alt remains untouched for normal app shortcuts and AltGr.

Reference

Default bindings.

Shortcut	Action
`Alt` + left-drag	Move window
`Alt` + right-drag	Resize from nearest corner
`Alt` + `T`	Toggle tiling mode
`Alt` + `J` / `K`	Focus next / previous window
`Alt` + `Shift+J` / `Shift+K`	Swap with next / previous window
`Alt` + arrows	Focus window by direction
`Alt` + `H` / `L`	Shrink / grow master column
`Alt` + `M`	Promote focused window to master
`Alt` + `F`	Toggle floating state
`Alt` + `W`	Close focused window
`Alt` + `Enter`	Launch terminal
`Alt` + `Shift+Enter`	Launch browser
`Alt` + `1`-`9`, `0`	Switch workspace
`Alt` + `Shift+1`-`9`, `0`	Move focused window to workspace