Viaduct 1.3.0 for Mac

Mac Utilities

Updated Aug 15, 2026

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Viaduct solves a small but stubborn Mac problem. A favourite tool exists as a Chrome extension, there is no Safari version, and the store button in Safari simply cannot be pressed. Viaduct converts that Chrome extension into a native Safari extension for you. With its own Safari extension switched on, the store button becomes an Add to Safari button. One click and Viaduct fetches the extension, converts it, signs it and installs it, with a runtime layer patching browser gaps.

Key Features

• One click conversion of Chrome extensions into Safari extensions
• Runtime layer that repairs API gaps so popups and scripts work
• Import from Chrome, Brave, Edge, Arc and other browsers
• Manifest V2 and V3 checks, with warnings when conversion cannot work
• Export and import tools for moving extensions to a new Mac

How to Download

1. Download from the official site and get Viaduct for your Mac.
2. Open the downloaded file, move Viaduct into Applications and follow setup.
3. Switch on the Viaduct extension in Safari settings and convert one.

System Requirements

The maker states that Viaduct needs macOS 13 or later and runs natively on Intel and Apple Silicon Macs. It also needs Xcode, free from Apple, to sign extensions.

FAQs

Will every Chrome extension work in Safari after conversion?

Most do, but not all. Viaduct warns you when a needed part is missing before it converts.

Do I need to know how to code to use Viaduct?

No. Viaduct handles the building and signing, and setup explains the one time Apple ID step.

Is Viaduct free?

A free tier converts up to two extensions for a limited time. Pro adds unlimited conversions.