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content: 2026-07-27 capture run — 16 finds across 8 productive sources

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rzen
2026-07-27 01:30:32 -04:00
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---
name: "SpinWin"
subtitle: "Rotate any Mac window to any angle, upside down included"
date: 2026-07-27
shortlist: true
link: "https://github.com/alokdhir/spinwin"
linkText: "github.com"
source: "Hacker News — Show HN"
topics: [macos-apps]
tags: [window-management, menu-bar, open-source]
description: "A macOS menu bar utility that rotates another app's window by any angle, faked convincingly with ScreenCaptureKit because no public API can do it for real."
---
macOS has no public API to rotate another app's window, and the private call needs System Integrity Protection off — so SpinWin fakes it instead. It hides the real window off-screen where it keeps rendering, captures that window's buffer with ScreenCaptureKit, and redraws the frames rotated in a transparent overlay sitting exactly where the original was. Ninety-degree steps, arbitrary angles, or a continuous spin, all from the menu bar.