Where can I download Antigravity?

Download Antigravity from the official Antigravity download page. The page auto-detects your operating system and highlights the correct build. For Windows the filename is AntigravitySetup-x64.exe or AntigravitySetup-arm64.exe. For macOS it is Antigravity.dmg. For Linux, .deb and .rpm packages are available alongside a tarball.

How do I verify the checksum after I download Antigravity?

The download page provides a SHA256SUMS file alongside each installer. On macOS and Linux run 'sha256sum --check SHA256SUMS' in the directory where you saved the file. On Windows use 'certutil -hashfile AntigravitySetup-x64.exe SHA256' and compare the output to the value listed on the download page.

Is it free to download Antigravity?

Yes. The core download is free. A paid tier for higher agent-run quotas, larger context windows, and team sharing is rolling out alongside the general-availability release. The free tier includes several full agent runs per day and a generous artifact storage limit.

What happens on the first run after I download Antigravity?

On the first run after you download Antigravity, the app prompts you to sign in with a Google account, grants the agent runtime access to a workspace folder you designate, and downloads the initial model state index. This takes one to two minutes. After that, the onboarding checklist walks you through your first agent task.

Can I download Antigravity on more than one machine?

Yes. There is no restriction on the number of machines where you download Antigravity under a single Google account. Quota — the number of agent runs per day — is pooled across all your installations. Heavy team use should consider the paid tier, where per-seat quota is higher and shared across all team machines.

Download Antigravity

Heads-Up Primer

When you download Antigravity you get a single signed installer that places the full AI-native browser, its agent runtime, and a local workspace manager on your machine. This page covers where to find the official build for each platform, how to verify the checksum before you run anything, and what to expect when the app starts for the first time. Reading it before you download Antigravity saves you the most common first-install mistakes.

Download Antigravity once and you have everything: a full Chromium browser, a Gemini-backed coding agent, multi-window orchestration, and an artifact runtime that stores every step the agent takes. The installer is self-contained — no separate runtime to install, no SDK to set up. This page is the general guide to the download process across all platforms; the Windows-specific guide and the full install guide go deeper on each platform.

Where to download Antigravity

You should only download Antigravity from the official Antigravity download page. The page auto-detects your operating system and highlights the recommended build. If the auto-detect is wrong, use the manual selector to pick Windows, macOS, or Linux. The download page also lists the current version number and the expected SHA-256 checksum for each file — copy the checksum for your platform before you close the page.

Third-party mirror sites and aggregator pages that claim to host the installer should be avoided. The official download is the only source guaranteed to carry the correct Authenticode or Gatekeeper signature. When you download Antigravity from an unofficial source you have no way to verify the build is unmodified.

What to expect from the download Antigravity process — platform by platform

Step	What to click or run	Expected result
1. Download the file	Click the platform button on the download page	Installer saved to your Downloads folder
2. Verify the checksum	Run `sha256sum` / `certutil` against the installer	Hash matches the value on the download page
3. Run the installer	Double-click .exe (Windows) / drag to Apps (macOS) / `dpkg -i` (Linux)	Browser installed, shortcut or app bundle created
4. Sign in	Launch the app and click Sign in	Google account authenticated, agent runtime activated
5. Grant workspace access	Choose a folder when prompted by the onboarding screen	Agent can read and write files in the designated folder

Verifying the checksum when you download Antigravity

Every time you download Antigravity, verifying the SHA-256 checksum is the single most important step you can take before running the installer. A mismatched checksum means the file was corrupted in transit or has been tampered with — either way, do not run it. Delete the file and re-download it.

Windows checksum verification

Open PowerShell and run: certutil -hashfile AntigravitySetup-x64.exe SHA256. Compare the output to the checksum listed on the download page for your version. They should match character for character. On Windows you can also right-click the .exe and check the Digital Signatures tab to confirm the Authenticode signer is Google LLC before running it.

macOS and Linux checksum verification

After you download Antigravity to a Mac or Linux machine, save the SHA256SUMS file from the download page into the same directory as the installer. Then run sha256sum --check SHA256SUMS. A clean download returns OK. On macOS you can also run spctl --assess --verbose /Applications/Antigravity.app after installation to confirm Gatekeeper accepted the notarised build. The FTC guidance on harmful downloads covers the basics of safe download practices for all software.

First-run flow after you download Antigravity

The first time you launch the app after you download Antigravity, three things happen in sequence. First, a Google sign-in prompt appears — the browser needs a Google identity to activate the Gemini agent runtime. Second, an onboarding panel asks you to designate a workspace folder; this is the directory the agent is allowed to read and write files in. Third, the model state index downloads in the background — a one-time process that takes one to two minutes on a typical connection.

After those three steps, the app loads the main interface. The agent side rail is open by default. The onboarding checklist suggests running a simple test task — something like "summarise the last ten commits in my workspace repository" — to confirm the agent has workspace access and the model is responding. If everything passes, the checklist closes and you are in the main loop.

Keeping the build current after the initial download Antigravity install

Once you download Antigravity and complete the initial install, the browser manages its own updates. On each startup it silently checks for delta updates on the channel you selected during the download. The update downloads in the background and is applied on the next restart. You do not need to re-download Antigravity manually for routine updates. For major version upgrades, the app may prompt you to restart during the session rather than waiting for the next launch.