Make your Mac yours.
Free, open-source native macOS utility. An Open Source Group project. Maintained by Kamyab Infotech.
Developer Preview 2 — Unsigned. Not Apple Developer ID signed or notarized. macOS may require Privacy & Security → Open Anyway. For technical / experienced users. Payment is never required to download.
Principles we ship by.
Voluntary support on the website never unlocks app features. The app stays free regardless.
Free & open source
No paywalls, no feature locks, no “Pro” tiers.
Native macOS
Swift and SwiftUI — behaves like a real Mac app.
Modular & reversible
Enable only what you use; every change has a clear undo path.
Privacy by default
No telemetry, ads, accounts, or phone-home analytics.
Safety first
No SIP disable, no Gatekeeper off, no kernel extensions.
Voluntary support
Pay what it’s worth never unlocks features — gratitude only.
Settings engine lifecycle.
READ → BACKUP → APPLY → VERIFY → HISTORY → RESTORE → RESET
Every preference write goes through a reversible pipeline. External drift is detected where possible; recovery stays honest about restart or logout requirements.
Developer Preview vs Support.
Developer Preview is an unsigned GitHub pre-release for experienced users. It is not Stable and not Gatekeeper-ready. Download from Open Source Group Releases, extract, open (Open Anyway if macOS blocks). We never recommend disabling Gatekeeper or SIP.
Window Corners adjusts the macOS window-corner preference used by supported applications — not every app. Backup, history, restore previous/original, and reset are included.
Support is voluntary pay-what-it’s-worth. It never unlocks features and is not required to download.
Free software. Pay what it’s worth.
Support helps us maintain Tweaksmith — it never unlocks features or removes limits.