Kumiko
AI window manager for ultrawide and big-screen Macs
Kumiko launched on November 9, 2026 with 62 votes, #244 of 2,172 launches that month and more than 95% of that year's launches.
What it does
Kumiko is a Mac window manager for ultrawide and big monitors. Snap windows with ⌃⌥ and the arrow keys, pick one of six layouts that fit your screen, or just say what you are working on and Kumiko arranges every window.
Kumiko is a window manager for big and ultrawide Macs. Snap windows with the arrow keys, or say what you're working on and every window goes where it should. Focus centre puts your main window straight ahead with references either side. Studio, Columns and the rest change shape for 16:9, 21:9 and 32:9. One shortcut, ⌃⌥1 to ⌃⌥6. Hold ⌃⌥ and press an arrow: the window goes to that side. Press it again and it changes width: half, two-thirds, a third (on an ultrawide it starts at a third). Two arrows in a row make a corner. Hold ⌃⌥ and the overlay shows where each arrow sends the window next. Press ⌥Space and type. Kumiko looks at what's open, opens what's missing, brings the right browser tab…from usekumiko.app
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