Native window management for macOS

Your windows,
thoughtfully placed.

tessera understands how you want to work, then finds a balanced layout that respects your preferences—and the windows already in place.

Version 1.0.0 · macOS 14 or later · Universal app

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Layout resolved3 windows · minimal movement Done
100%Native Swift
0Rigid grids
PublicmacOS APIs only
PrivateNo screen recording

A smarter resolver

It doesn’t fill a grid.
It solves for your intent.

Most window managers ask you to design the layout. tessera asks what matters, then does the geometry.

SSafariVertical · Left / CenterTile
XXcodeHorizontal · CenterTile
TTerminalRight / CenterAuto
MMusicKeep its own positionFloat
Safari Xcode Terminal Music

Built for flow

Powerful where it matters.
Quiet everywhere else.

Preference-driven layouts

Tell apps to prefer vertical or horizontal space, guide them left or right, or let tessera decide. Explicit choices stay important without turning your desktop into a brittle template.

Stable by design

New and closed windows disturb as little as possible. Your workspace evolves instead of reshuffling beneath you.

Z

Zones, not Spaces

Group windows into named contexts and switch instantly—without hiding your work across extra macOS desktops.

Fits the real window

tessera adapts when an app resists a size and gives the remaining room to a neighbor that can use it.

Made for the Mac

Truly native. Remarkably light.

Built in SwiftUI and AppKit, tessera lives in the menu bar and works through public Accessibility APIs. No Electron shell. No window-content capture. No unnecessary cloud service.

Your desktop stays yours

Window geometry in.
Better geometry out.

tessera reads window position and size through macOS Accessibility. It never needs Screen Recording and never inspects what is inside your windows.

No Screen RecordingPublic macOS APIs only

What’s new

Changelog

A simple, human-readable history of tessera.

Latest

tessera 1.0.0

First release!

tessera app icon

Make room for your best work

A calmer desktop is one download away.

Download tessera 1.0.0