9brains is the GDPR-compliant AI platform for businesses, hosted in a data centre in Germany. The desktop app runs alongside your other programs, with all AI models, agents, projects and your company's knowledge. On top of that, 9brains works with the files in folders you share.
Included in every plan, including the free trial.
No account yet? Sign-up and licence purchases happen in the browser.
Try it for free
Features
The desktop app has everything 9brains offers in the browser: all AI models, agents, projects, skills and your company's knowledge base. Plus what only becomes possible as a program on your computer.
Share a folder under Settings → Personal Settings. 9brains then reads and searches the files in it and answers your questions about them. 9brains only creates new files or changes existing ones once you approve it in the chat. Anything to be removed goes to the trash.
Start a longer task and keep working in another program. When the answer is ready, 9brains lets you know with a notification. One click on it opens exactly that chat.
Sign-in opens in your browser, so your password manager, passkeys and Microsoft sign-in work as always. Afterwards you stay signed in to the app.
The app downloads new versions in the background and installs them the next time you quit. Every version is signed by 9brains GmbH, and the Mac version is also checked by Apple.
Your data stays in Germany, whether you work in the desktop app, in the browser or on the go.
How we deliver sovereign AI Plans and pricing 9brains mobile app
Coming soon
These features are already in the works and will reach the app shortly through an update. You won't need to reinstall anything.
9brains gets a browser of its own. With it, 9brains opens websites and works in them for you, for example to gather information from several pages.
Software that only runs on your computer, such as a CAD program, connects to 9brains directly through its MCP server. No VPN needed.
9brains runs commands in the terminal or in PowerShell, for example to start a script or convert many files at once.
Download
Pick the version that matches your computer.
To see which Mac you have, open the Apple menu and choose “About This Mac”: a “Chip” line means an Apple chip, a “Processor” line means an Intel processor.
Open the downloaded file and drag 9brains into the Applications folder.
To see which processor your PC has, open Settings → System → About and look at “System type”: “x64-based processor” means Intel or AMD, “ARM-based processor” means ARM.
Open the downloaded file and follow the setup assistant. You don't need administrator rights. If Windows shows a blue notice, choose “More info” and then “Run anyway”. It names 9brains GmbH as the publisher.
The links always lead to the latest version. Once installed, the app keeps itself up to date.
Getting started
Sign-up and licence purchases run through the website. Try 9brains for free or get invited by your company.
Download the right version for your Mac or Windows PC and install it.
Click “Sign in with your browser” in the app and sign in as usual. Your chats, agents and projects are there right away.
FAQ
No. The desktop app is included in every plan, including the free trial. You use your existing 9brains account and don't need an additional licence.
For a Mac with an Apple chip, which means all Macs from late 2020, take the Apple chip version; for older Macs, the Intel processor version. For Windows PCs with an Intel or AMD processor, which is almost all of them, take the Intel and AMD version. For laptops with an ARM chip, such as Snapdragon, take the ARM version. The Intel and AMD version also runs there, but only emulated and noticeably slower.
Chats, agents, projects, skills and the knowledge base are the same on every device. The desktop app adds shared folders, notifications as soon as an answer is ready, and a window of its own that you reach from the Dock or the taskbar.
9brains can only reach the folders you share under Settings → Personal Settings. The app stores which folders those are on your computer only. In these folders, 9brains reads and searches files. It only creates or changes a file after you approve it in the chat, and anything to be deleted goes to the trash. Hidden files and folders (such as .ssh or .env) and the folders of the system and programs always stay out of reach.
Exactly as in the browser: your data is stored exclusively with us in Germany. When 9brains reads a file from a shared folder in a chat, its content is treated like a file you upload to the chat. The app shows no ads and does not analyse your usage for advertising.
No. You can only create an account and buy licences in the browser. Afterwards you sign in to the app through your browser, with the same credentials as always.
Not on Windows: the app installs into your user account. On a Mac you drag 9brains into the Applications folder, as with any other program.
Automatically. The app checks for a new version at start-up and every four hours after that, downloads it in the background and installs it the next time you quit. On a Mac, quit 9brains with ⌘Q for that; closing the window is not enough. On Windows, closing the window is enough.
Create your account in the browser, try 9brains for free and then sign in to the desktop app.
