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Antigravity install guide — all platforms

Snapshot Briefing

This guide covers every step of an Antigravity installation from download through first run. Whether you are on Windows, macOS, or Linux, the process follows the same pattern: fetch the signed build, verify it, run the installer, sign in, and grant the agent the workspace permissions it needs. The whole sequence takes under ten minutes on a clean machine.

Antigravity ships as a native desktop application on three operating systems. The browser bundles a full Chromium engine, a local file workspace, and an agent runtime into a single installer. This page is the central hub for all install-related guidance; the platform-specific pages — Windows download, download Antigravity, and the Chrome bridge — go deeper on each platform.

Before you begin — system requirements

Check the table below before downloading. The browser is deliberately lean on disk but needs enough RAM for the agent runtime to hold a task plan and a live Chromium session simultaneously. On constrained machines the agent will function, but you may notice slower plan-generation times when more than two windows are open.

Platform Min OS version Installer size Verified hash method
Windows Windows 11 64-bit (x86-64 or ARM64) ~180 MB Authenticode / SHA-256 checksum file
macOS macOS Ventura 13.0+ (Intel or Apple Silicon) ~210 MB Gatekeeper notarisation / SHA-256 checksum file
Linux Ubuntu 22.04 LTS or equivalent (x86-64) ~195 MB SHA-256 checksum file + GPG package signature

All three builds require a minimum of 8 GB RAM and 2 GB of free disk space. An internet connection is required at first launch for Google account sign-in and agent model initialisation. After that, offline mode is available for local workspace tasks that do not require model calls.

Windows installation walkthrough

The Windows build arrives as a standard user-level installer (.exe). It does not require administrator rights and installs into your AppData folder by default. An MSI variant is available for IT teams deploying via Group Policy — see the Windows download guide for the MSI download and policy template details.

Step 1 — download

Go to the official Antigravity download page and click the Windows button. The file will be named something like AntigravitySetup-x64.exe. Save it to a known location such as your Downloads folder.

Step 2 — verify the signature

Right-click the downloaded file, choose Properties, and open the Digital Signatures tab. The signer name should read Google LLC. If the tab is absent or the signer differs, do not proceed — delete the file and download again from the official source. This step protects against substituted files and corrupted downloads. The NIST Cybersecurity Framework recommends signature verification as a baseline supply-chain control for all third-party software.

Step 3 — run the installer

Double-click the installer and follow the setup wizard. The default install path and options are suitable for most users. If you want to install for all users on a shared machine, choose the system-level option, which will prompt for administrator credentials. The installation typically completes in under two minutes.

Step 4 — first launch and sign-in

Launch the application from your Start menu or desktop shortcut. The first-run screen prompts for a Google account. Sign in, review the permission scopes (the agent requests file-system access scoped to a workspace folder), and click Continue. The agent model downloads its initial state index in the background — this takes a minute or two on a fresh install.

macOS installation walkthrough

The macOS build is a standard signed and notarised application bundle (.dmg). Gatekeeper will validate the notarisation automatically when you open the app on Ventura or later. No extra steps are needed to bypass security dialogs on a current OS.

Open the DMG and drag to Applications

Double-click the downloaded .dmg to mount it, then drag the Antigravity app icon to the Applications alias. Once the copy completes, eject the disk image. You can verify the app is properly notarised by running spctl --assess --verbose /Applications/Antigravity.app in Terminal — a clean install returns accepted and the source reads Notarized Developer ID.

Privacy permissions on first run

macOS will ask for permission to access the Desktop, Documents, or a custom folder the first time the agent tries to write a workspace file. Grant access to the folder you intend to use as your working directory. The agent does not request access to iCloud Drive, the entire home folder, or any protected paths beyond what you explicitly grant.

Linux installation walkthrough

The Linux build ships as a Debian package (.deb) for Ubuntu-family distributions and an RPM for Fedora/RHEL-family systems. A compressed tarball is also available for manual placement. The package manager route is recommended because it installs a repository source that handles future updates automatically.

Debian/Ubuntu — package manager route

Download the .deb file, then run sudo dpkg -i antigravity_*.deb && sudo apt-get install -f to install it and resolve any missing dependencies. Alternatively, add the Antigravity APT repository to your sources list and install via apt install antigravity. The repository route gives you automatic updates through your normal apt upgrade cycle.

Verify the SHA-256 checksum on Linux

The download page provides a SHA256SUMS file alongside each installer. Download both, then run sha256sum --check SHA256SUMS in the directory where you saved the installer. A clean download returns OK. The GPG signature on the package itself can be verified with the public key published in the Antigravity security documentation. See the NIST SP 800-147 guidance for background on firmware and software integrity verification.

Post-install: update channels

Antigravity ships two update channels: Stable and Canary. The Stable channel updates every two to four weeks and is suitable for production use. Canary updates daily and includes features under active development. Most users should stay on Stable. To switch channels, open the About panel inside the browser and select your preferred channel — the next update will migrate you automatically.

Related install pages

Antigravity install guide — five questions that come up every time

Common questions from engineers working through the install for the first time, with grounded answers.

  1. What are the minimum system requirements for Antigravity?

    On Windows you need Windows 11 64-bit, 8 GB RAM, 2 GB free disk, and an x86-64 or ARM64 processor. macOS requires Ventura (13.0) or later and runs natively on both Apple Silicon and Intel. Linux support is rolling out on Ubuntu 22.04 LTS and compatible distributions. All platforms need a working internet connection for first-launch model initialisation, though the agent can run in offline mode for local workspace tasks after that.

  2. How do I verify the Antigravity installer signature?

    On Windows, right-click the downloaded .exe, choose Properties, open the Digital Signatures tab, and confirm the signer reads Google LLC. On macOS, run spctl --assess --verbose /Applications/Antigravity.app in Terminal to check Gatekeeper acceptance. On Linux, use the provided SHA-256 checksum file alongside sha256sum --check. Never skip this step — it confirms the build has not been tampered with in transit.

  3. Can I install Antigravity alongside my existing Chrome installation?

    Yes. The two applications share no profile directories. The browser creates its own user data folder under the OS-standard application support path and does not touch Chrome's profile or extension registry. You can run both simultaneously without conflicts. If you want to bring your Chrome bookmarks and extensions into the browser, use the Chrome bridge import flow described on the Chrome profile bridge page.

  4. Does the Antigravity installer require administrator privileges?

    On Windows the user-level installer does not require admin rights and installs into the user AppData folder. A system-wide MSI is available for enterprise deployments via Group Policy and does require elevation. On macOS you drag the app to Applications, which requires write access to that folder but not a full admin password in most configurations. On Linux the .deb/.rpm package requires sudo for system-level placement.

  5. How do I update Antigravity after the initial install?

    The browser checks for updates at startup and silently downloads the delta package in the background. A small badge on the menu indicates a pending restart. You can force a check from the About panel. Enterprise-managed installs receive updates via the same distribution channel as the original deployment, controllable through policy. Linux package-manager installs update through the normal apt upgrade or dnf upgrade cycle once the Antigravity repository is added.

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