FlowSnap for macOS•Version 1.3.1

Your Mac. Your Layout.
Your Flow.

Native window management engineered with intent-based workspace restoration, Windows 11-style top-edge layout picker, and zero private APIs.

Download FlowSnapTry Interactive Sandbox
Instant snap hotkey:⌃⌥← / →|Quake scratchpad:⌥Space
Hero Experience

3D Interactive macOS Desktop Simulator

Drag windows, test top-edge snap layouts, and trigger translucent HUD previews directly in your browser.

FlowSnap
09:41
SnapEngine.swift70% Zone
// FlowSnap Core Engine
import Cocoa

@MainActor
public struct SnapEngine {
    public static let shared = SnapEngine()
    public func snap(to zone: LayoutZone) {
        // Hardware-accelerated 70/30
    }
}
zsh30%
➜ flowsnap status
✔ Active (Zero Private APIs)
ℹ Snap: 70/30 Active
➜ _
Interactive Sandbox: Drag any window to top edge to snap, or click FlowSnap icon on Menu Bar/Dock.
FlowSnap
09:41
SnapEngine.swift
Zone: Free Float
12345678910
// FlowSnap Core Snap Engine
import Cocoa

@MainActor
public struct SnapEngine {
    public static let shared = SnapEngine()
    public func snapWindow(to zone: LayoutZone) async {
        let frame = zone.computeGeometry(for: activeDisplay)
        await WindowBridge.animateTo(frame, spring: .macOSDefault)
    }
}
Swift 6.0PID: 4092
vutuanhau@MacBook-Pro: ~ (zsh)
Zone: Free Float
➜ ~ flowsnap status
✔ Daemon: Active (Zero Private APIs)
✔ Topology: 2 Displays • ProMotion 120Hz
ℹ Snap Zones: 4 Templates Loaded (70/30 active)
➜ ~ _
zsh 5.9CPU: 0.0%
Core Architecture

Engineered for Focus & Intent

6 breakthrough capabilities bringing Windows 11 elegance to native macOS speed.

Swift 6
Crash-Free Stability
Strict Concurrency • Zero Memory Leaks & Data Races
0
Private APIs Required
100% Gatekeeper Safe • Public AppKit & Accessibility APIs
470+
Verified Precision
Swift Testing (@Test) Suite Covering 100% Snap Math
< 1ms
Instant Response
Snap Math • Zero Disk I/O In-Memory Engine
60 FPS
Silky Smooth Resizing
Divider Dragging • 16.6ms Throttled Fluid Multi-Window Reflow
Windows 11-Style on Mac

Top-Edge Snap Layout Picker

Drag any window to the top edge to reveal an intuitive layout picker: 50/50, 70/30, 3-column, and 4-corner grids. Drop into any zone for instant snapping.

Smooth slide-in physicsLiquid Glass translucent HUD4 smart layout templates
Tiling Precision

Adaptive Collinear 2D Resize

Drag shared divider borders or crosshair intersections to simultaneously resize 2 to 4 adjacent windows at 60 FPS without breaking layout symmetry.

T-junction & crosshair snappingRock-solid 60 FPS fluidity
Flow Continuity

Current Space Preservation

Newly launched apps appear strictly in your current active workspace. Permanently ends macOS from jarringly jumping to another virtual desktop space.

100% Public APIsZero workspace disruption
Multi-App Harmony

Intent-Based Workspaces & Presets

Save and restore full application workspace groups (Coding, Research, Writing) mapped by screen-independent percentages with a single keystroke.

Coding & Research PresetsSeamless multi-display restore
Instant Summon (⌥Space)

Quake-Style Quick Scratchpad

Summon a dedicated utility window (Terminal, Notes, Finder) floating in front in < 50ms. Dismiss quickly with ESC without shrinking underlying windows by 1 pixel.

Instant < 50ms summonAuto-dismiss on outside clickZero-shrink background apps
Multi-Display Topology

Display-Aware Multi-Monitor Topology

Throw windows across screens with dedicated hotkeys (⌃⌥⇧→), automatically scaling proportions between Retina displays and 4K monitors with pixel-perfect math.

1-touch display throwPreserves aspect ratio across 4K & Retina
Tactile Speed

Keyboard Shortcuts Matrix

Full spectrum keyboard navigation for windows, multi-display throws, and presets.

Snap Left Half (50%)

Basic

Snap focused window to the left 50% of the active display

⌃⌥←

Snap Right Half (50%)

Basic

Snap focused window to the right 50% of the active display

⌃⌥→

Maximize Window

Expand window to fill 100% of usable desktop workspace (excluding Dock/Menu Bar)

⌃⌥↑

Restore Previous Size

Return window to its original size and coordinates prior to snapping

⌃⌥↓

Snap 4 Corners (25%)

Tile window into 1 of 4 screen corners (1: Top-Left, 2: Top-Right, 3: Bottom-Left, 4: Bottom-Right)

⌃⌥1..4

Pin Always on Top

New

Keep window floating above all other application windows

⌃⌥P
Distribution

Get Started with FlowSnap

One-click terminal install, verified DMG packages, and offline privacy manifesto.

v1.3.1September 2026

Get FlowSnap for macOS

MIT Open Source

Download verified, pre-built universal macOS (.dmg) package optimized for both Apple Silicon and Intel architectures.

Universal Binary (Apple Silicon & Intel)
macOS 14.0+ (Sonoma & Sequoia)
SHA-256 Checksum & Universal Script Verified
View all releases on GitHub
Zero Telemetry Guarantee

Privacy & Transparency Manifesto

FlowSnap is built for engineers and power users who value security. Zero compromises on personal data.

Zero Network Outbound

100% Offline Operation

FlowSnap runs completely locally on your Mac without making any external outbound network requests.

  • No account registration or login required
  • Zero configuration or layout data sent outside
  • Functions flawlessly even completely air-gapped
No Tracking SDKs

Zero Telemetry & Tracking

Strictly zero telemetry, analytics, user profiling, or behavioral tracking SDKs integrated.

  • No Google Analytics, Sentry, or Mixpanel SDKs
  • No cookies, fingerprinting, or device identifiers
  • 100% open source for independent public audits
AXUIElement Only

Transparent Accessibility Permissions

Accessibility (AX) APIs are strictly utilized to compute and navigate window frame coordinates.

  • Operates strictly on window size and position frames
  • Zero Keylogging guarantee: Never listens to keystroke contents
  • Zero memory inspection or interference with other applications
100% publicly auditable source code:
github.com/ahauy/FlowSnap
Seeing "Unidentified Developer" warning from macOS Gatekeeper?Gatekeeper Help
Quick 5-second quarantine removal for macOS Sequoia & Sonoma
Details

Because FlowSnap is community-driven open source (without a commercial paid Apple Developer certificate), macOS applies quarantine flags on first launch.

Drag FlowSnap into Applications

Open the downloaded FlowSnap.dmg and drag the FlowSnap icon into /Applications as usual.

Open Terminal and clear quarantine flag

Copy and paste the command below into Terminal, then press Enter to remove com.apple.quarantine.

xattr -cr /Applications/FlowSnap.app
Open app and grant Accessibility permission

Launch FlowSnap from Launchpad or Spotlight, and grant Accessibility permission when prompted to enjoy fluid snapping.