Mosaico

A cross-platform tiling window manager, written in Rust.

Mosaico automatically arranges your windows into a non-overlapping tiled layout. It ships three tiling algorithms (BSP, VerticalStack, ThreeColumn) that you can cycle per workspace at runtime, runs as a lightweight background daemon, and is controlled entirely from the command line or via global keyboard shortcuts.

Features

• Automatic tiling with three algorithms – BSP (default), VerticalStack, and ThreeColumn. Cycle on the fly with Alt + N or pin a layout per workspace.
• Vim-style navigation – focus and move windows with Alt + H/J/K/L.
• Workspaces – up to 8 workspaces, switching either per-monitor (default) or globally across every display, like Windows virtual desktops.
• Multi-monitor – each monitor is managed independently with cross-monitor navigation.
• Per-window borders – focused, monocle, and unfocused color states under [borders.colors].
• Monocle mode – full-screen single-window mode per monitor.
• Status bar – configurable per-monitor bar with workspace indicators, clock, CPU, RAM, focused window icon, pause indicator, and more.
• Three theme families – Catppuccin, Rosé Pine, and Tokyo Night with multiple flavors each.
• Pause / unpause hotkeys – Alt + Shift + P releases every Mosaico shortcut so full-screen applications can claim the same combinations.
• Hot-reload – changes to config.toml, bar.toml, and user-rules.toml are applied without restarting.
• Window rules – community-maintained rules plus user overrides to exclude specific applications from tiling.

Quick Start

# Install on Windows
irm https://raw.githubusercontent.com/jmelosegui/mosaico/main/docs/install.ps1 | iex

# Create default config files
mosaico init

# Start the window manager
mosaico start

See Installation for more options or Getting Started for a walkthrough.

License

Mosaico is released under the MIT License.