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Quick start with LastBrowser

LastBrowser is ready to use on your Windows 10 or 11 PC in just a few steps. Learn everything about installation and your first steps here.

1. System requirements

Operating system: Windows 10 (version 1903 or later) or Windows 11 (64-bit x64).
Memory: At least 4 GB of RAM (8 GB recommended for simultaneous LLMs & tabs).
Disk space: About 400 MB for the application installation.

2. Installation

Download the latest setup from our download page. Run the file Lastbrowser-0.1.60-x64-setup.exe.

Note on Windows SmartScreen:

Because each new Local-first release has its own signature, SmartScreen may report “Windows protected your PC”. Click “More info” and then “Run anyway”.

3. Your first steps in the browser

Explore the vertical sidebar: Press Ctrl+B to show or hide the vertical sidebar.
Create a new Space: Click the + icon next to Spaces in the sidebar to create an isolated workspace (e.g. “Work” or “Research”).
Open the Sidekick split-view: Click the Sidekick icon or press Ctrl+Shift+L to launch the AI copilot in 70/30 split-view.
Open the terminal: Use the shortcut Ctrl+` to instantly open the integrated ConPTY PowerShell terminal.