Mac Window Management: Rectangle, BetterTouchTool, and Beyond

Why Does macOS Still Make Window Management Feel Like an Afterthought?

I spent three years tiling windows manually on a 27-inch iMac before I finally admitted the problem wasn't me — it was macOS. Apple's native window management philosophy is essentially: windows float, you arrange them yourself, and if you want more than that, there's Stage Manager now. Stage Manager, bless its heart, is fine for people who work in one app at a time. For anyone juggling a browser, a code editor, a terminal, Slack, and a design tool simultaneously, it's not even in the conversation.

The gap between what macOS provides and what a productive multi-window workflow actually demands has spawned an entire ecosystem of third-party tools. Some are elegant. Some are overkill. A few have genuinely changed how I think about screen real estate. This piece is my honest accounting of all of them — starting with the simplest and working toward the genuinely powerful.

What Makes Rectangle the Right First Tool for Almost Everyone?

Rectangle is free, open-source, and does exactly one thing: it lets you snap windows to halves, thirds, quarters, and corners using keyboard shortcuts or by dragging to screen edges. That's it. No subscriptions, no preferences labyrinth, no helper processes eating memory.

What I love about Rectangle's philosophy is its deliberate restraint. The shortcuts are memorable because they follow a spatial logic — Control + Option + Left Arrow sends a window to the left half, Right Arrow to the right half, Up to the top half. The first time you use it, you don't need to look anything up. You just try the arrow that points to where you want the window to go, and it works.

Rectangle also handles multi-monitor setups gracefully. Pressing the same shortcut repeatedly cycles a window through monitors — left half on monitor one, then left half on monitor two. It's not configurable, but it's predictable, and predictability in a keyboard workflow is underrated.

The honest limitation: Rectangle has no memory. Close an app and reopen it, and your carefully arranged layout is gone. It also has no concept of app-specific rules — you can't tell it "always put Slack in the bottom-right quarter." Every session is a blank slate. For a lot of users, that's fine. For power users, it becomes friction after about a week.

Rectangle Pro is the paid upgrade ($9.99 one-time) and addresses some of this with window gap settings and a few extra layout options — but it still doesn't solve the memory problem. If you're considering the pro version, you should probably skip directly to Moom or BetterTouchTool instead.

Is Moom the Unsung Hero of This Category?

Moom ($9.99, one-time, Mac App Store) gets far less attention than it deserves, possibly because it doesn't have a dramatic feature list — it just works remarkably well. The core idea is a hover menu that appears when you mouse over the green traffic-light button on any window: a small grid overlay that lets you drag to set the exact position and size you want.

Where Moom earns its price is the Snapshots feature. You arrange a perfect layout — browser on the left two-thirds, email on the right third, terminal somewhere below — and save it. One keyboard shortcut later, Moom restores that exact arrangement. When I'm jumping between a writing setup and a development setup throughout the day, this is the feature that actually saves time rather than just saving keystrokes.

Moom also supports custom keyboard shortcuts tied to specific window positions, and those positions can be fractions rather than just halves. A 65/35 split for reading-heavy workflows, a 50/25/25 three-column layout, a floating small window in the exact pixel coordinates you want — Moom handles all of it without requiring you to learn a scripting language.

It's not flashy. The UI feels like it was designed in 2014 (because it was). But stability counts for something in a utility you're running every day, and Moom has never once crashed on me across three Mac upgrades.

When Does BetterTouchTool Become the Only Honest Answer?

BetterTouchTool is a different category of tool that happens to include excellent window management. Calling it a window manager is like calling a Swiss Army knife a corkscrew — technically accurate for one use, deeply incomplete as a description.

The window snapping in BTT is genuinely excellent. You get pixel-perfect snap areas you define yourself, with visual previews, per-app overrides, and the ability to snap using trackpad gestures, keyboard shortcuts, or even just mouse movement. But the reason to buy BTT (€22 for a two-year license, €52 for lifetime) isn't the window snapping — it's that everything else is included in the same tool.

I use BTT's window management alongside its trackpad gesture customization, its menu bar widget system, and its clipboard manager. The integration matters: I can set up a three-finger swipe that simultaneously snaps my browser to the left half and brings my notes app to the right half, because BTT can chain actions. That's not something Rectangle or Moom can touch.

The honest caveat: BetterTouchTool has a steep learning curve. The preferences window is enormous, the documentation is sprawling, and the tool can do so many things that finding the specific setting you want sometimes takes genuine effort. If you buy it expecting to be productive immediately, you will be disappointed. If you're willing to invest two or three hours learning it, you will wonder how you managed without it.

BTT is also not the right choice if window management is your only need. The price is justified by the breadth of what it does. For pure window snapping, it's expensive overkill.

What Does Magnet Get Right That the Others Miss?

Magnet ($7.99, App Store) is the most popular window manager on the Mac App Store, and I think it's worth examining why — especially since it isn't my personal recommendation.

Magnet's strength is discovoverability. Every window position has a visible keyboard shortcut shown in the menu bar dropdown. New users don't need to guess or configure anything. It snaps windows to standard positions with zero friction, supports multiple monitors, and has a genuinely clean icon. For someone who has never used a window manager before, Magnet gets out of its own way and just works.

What Magnet doesn't do: custom layouts, saved arrangements, app-specific rules, or any integration with the rest of your workflow. It's a polished tool with a deliberately small scope. If Rectangle is what you use before you know what you need, Magnet is what you buy when you want Rectangle but with a nicer icon and App Store peace of mind.

How Do Power Users Actually Build a Window Management System?

The most effective window management workflows I've seen don't rely on a single tool — they layer tools with different scopes. Here's the pattern that works for me:

• Keyboard shortcuts for immediate snapping — Rectangle or BTT handle the moment-to-moment repositioning. Muscle memory takes over after a few days.
• Named layouts for context switching — Moom's snapshots or BTT's layout macros handle the "shift to writing mode" / "shift to development mode" transitions. One shortcut, everything moves.
• App-launch rules for persistent apps — BTT can run an action when an app launches, which means apps like Slack and Mail can be automatically positioned at startup rather than manually moved each morning.
• Spaces for true separation — macOS Spaces (virtual desktops, accessed via Control + Arrow or the Mission Control gesture) are the layer above window managers. I keep a dedicated Space for communication apps, one for deep work, and one for reference material. Window managers work per-Space, so layouts don't bleed between contexts.

The edge case that trips up every window manager: apps that resist resizing. Certain apps — some Electron apps, some older productivity tools — have minimum window sizes or ignore resize requests from external tools. Rectangle and BTT handle this more gracefully than Magnet, which sometimes silently fails without explanation. If you run any stubborn apps, test your tool of choice against them before committing.

Who Is This Entire Category Not For?

I should be honest: if you primarily work in full-screen apps or use your Mac for one thing at a time — video editing in Final Cut, writing in a focused mode app, gaming — none of these tools will meaningfully improve your workflow. They solve the problem of managing multiple windows simultaneously. If that's not your problem, you don't need the solution.

macOS's own full-screen mode, split-view, and Stage Manager are genuinely fine for single-task work. Don't buy software you don't need. The best window manager is the one that maps to how you actually work, not the one with the longest feature list.

What's the Honest Verdict After Years of Testing All of These?

Start with Rectangle — it's free, it takes five minutes to learn, and it will immediately make you more organized. If you find yourself wishing for saved layouts or more control, move to Moom. If you're the kind of person who wants to automate everything and customize your Mac at a deep level, BetterTouchTool is the ceiling of this category and then some.

The tools that don't make my short list — Magnet, Mosaic, Swish — aren't bad. They just exist in a market where better or cheaper alternatives do the same job. Mosaic is visually beautiful and worth a look if you want something that feels more modern than Moom, but it's priced like it knows it's competing against a free app.

Window management on macOS has come a long way since the days when "tiling" meant physically moving windows with your trackpad. These tools represent years of community effort to fill a gap Apple has never fully closed. Pick the one that matches your ambition, stick with it long enough to build muscle memory, and stop touching your windows manually.