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The new home for your internet 🏡
SigmaOS is a new type of browser designed for founders, researchers, and content creators to make you better and faster at working on the web. You work 7+ hours a day on the web. Buried in a sea of 100+ tabs and 10+ web-apps 🤯, you constantly lose context for why you did what you did, and are always one click away from being distracted. We took apart the browser for you, and rebuilt a new experience from the ground-up, for the FASTEST and most PRODUCTIVE work. ⚡
SigmaOS presents itself as a new browser experience focused on organizing tabs and workspaces, with features to simplify browsing, provide in-context answers, and remove distractions. It markets a set of productivity-oriented tools like vertical tabs, split screen, lazy search, and Airis, a contextual browser companion.
The product is a browser with organized workspaces and vertical tabs, where tabs can be grouped, marked as tasks, and managed within dedicated workspace lists. It supports split-screen multitasking, a lazy search that queries tabs and the web via a spacebar shortcut, and an in-browser assistant Airis for chat, search in the current site, and context explanations. Additional features include a pacified browsing mode (Simplify) that summarizes pages, a Magic Theme to match website colors, ad-free browsing via built-in blocker, focus mode to hide other UI, easy migration of data, multiple logins via separate profiles, keyboard-centric shortcuts, and autosync across devices when signing in. It emphasizes ease of onboarding and migration from other browsers and a community-driven ecosystem.
Who it’s for: Individuals and teams seeking a highly organized, distraction-free, and keyboard-driven browser experience with workspace-based tab management and contextual in-browser assistance.
mentions of community, Slack community, and easy migration imply early traction and growing user base; frequent feature updates and new UI enhancements suggest active development
2x YC founder building a web app to create AI coworkers using natural language, think of it as Lovable but specifically designed for AI agents. previously built the first web browser designed for work with AI agents built in @SigmaOS (S21), used by 100,000+ people with 75,000 LLM requests per day.
Building Okibi (S25) to create AI coworkers using natural language, like Lovable but specifically designed for agents. Previously built SigmaOS (S21), the agentic browser built for work. Used by 100,000+ people.
The Open Source Agentic Browser
Improve your browsing experience by staying organized and intentful
