SigmaOS

SigmaOS is a Mac browser built around workspaces and keyboard-first navigation, with an AI assistant, Airis, that explains and acts on whatever is on screen.

Overview

SigmaOS treats every tab as a persistent workspace item rather than a disposable page. Tabs become lockable, renameable workspaces organized by project, and the keyboard replaces the mouse for almost every action. Its assistant, Airis, can explain the current page, compare content across tabs, and execute simple commands like filling forms or extracting structured lists. Lazy loading and vertical tab management keep memory usage sane across dozens of open pages, and instant search across workspaces makes re-finding anything trivial. The browser targets professionals who spend their entire day inside web tools and want that environment to behave more like an operating system with AI layered in, rather than a stack of fading tabs. The browser’s workspaces behave like project folders that persist across restarts, so returning to a project restores its full web context instantly instead of requiring you to rebuild a research environment from memory each morning.

Key Features

• Workspace-based tab organization with locking, renaming, and vertical layout
• Airis assistant that explains pages, compares tabs, and runs simple commands
• Keyboard-first navigation for nearly every browser action
• Instant search across all workspaces and browsing history
• Lazy loading that keeps large tab counts lightweight
• Persistent workspaces that restore complete project context after restart

Pricing

SigmaOS offers a free trial for evaluation. Individual and team subscriptions unlock full workspace features, Airis premium capabilities, and priority support, with discounts for annual billing.

Who Is It For

Mac-based professionals and researchers who keep dozens of web tools open all day and want a keyboard-driven, organized browser with an assistant that understands their whole workspace. It fits consultants and developers who segment their day into projects and want each one to keep its own tidy, instantly recoverable browser environment.