Historically, Packet Tracer was designed primarily for Windows, often forcing Mac users to run virtual machines or use Wine bottlers. However, modern versions of Packet Tracer (specifically version 8.0 and later) are built on a cross-platform architecture that supports macOS natively.

Once you have downloaded the .dmg installation file from the NetAcad portal:

Prerequisite assumption: you want the official, free Packet Tracer provided to self-learners via Cisco Networking Academy (NetAcad). Steps below use macOS 12+ (Intel or Apple Silicon). SHA256 shown matches official 9.0.0 release.

If you want, I can provide concise step-by-step commands for verifying the download, or an installation checklist tailored for Intel vs Apple Silicon Macs.

If you try to open Packet Tracer and get a message saying it "cannot be opened because it is from an unidentified developer," follow these steps:

Cisco hides the download behind a free course gate. Here’s how to unlock it:

Follow these exact steps to get the official free version directly from Cisco.

On the download page, you will see a list of available versions. Cisco maintains compatibility with the three major operating systems: Windows, Linux, and macOS.