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Zero

Download Zero

Zero for Mac is free and open source, under the GNU GPL v3 or later. It needs macOS 26 or later.

Download for Mac All releases

Install it

  1. 1

    Open Zero.dmg

    A window opens with Zero on the left and your Applications folder on the right.

  2. 2

    Drag Zero onto Applications

    Zero updates itself there, and the tools it gives your agents look for it there.

  3. 3

    Open Zero

    Open it from Applications, then eject the Zero disk. It lives in the menu bar.

After you install Zero

  • Stay up to date

    Zero checks for new versions. When one is out, the menu bar icon says so, and Settings › General shows Update and restart. Zero never updates without your click.

  • Check the download

    Each release comes with its SHA-256, a Sigstore signature and its build provenance. This command checks that your Zero.dmg is the one CI built from this code:

    gh attestation verify Zero.dmg --repo arsenstorm/zero

  • Build it yourself

    View on GitHub

    The README says how to build and test Zero. A build from source draws open-source icons where the official app has Nucleo's. The rest is the same.