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About SigmaOS
What is SigmaOS?
SigmaOS is a fresh take on the browser designed to reduce digital clutter and help you focus. Instead of traditional tab chaos, SigmaOS arranges your tabs into vertical lists and workspaces—think rooms in a house. You can mark tabs as done like tasks, group them easily, and jump between multiple logins without losing context.
Who is it for?
SigmaOS is built for professionals, students, and anyone overwhelmed by dozens of open tabs. It’s ideal for researchers, writers, and multitaskers who need to switch between projects quickly. If you love a clean, to‑do‑list style workflow, this is for you. It might not suit users who prefer a classic horizontal tab layout or need extensive enterprise admin features.
Key problems it solves
SigmaOS eliminates tab clutter by turning your browser into a task manager. Workspaces keep projects separated, vertical tabs give an instant overview, and features like Split Screen simplify side‑by‑side work. The built‑in AI assistant, Airis, helps you chat with any website, find information in your own words, and even summarize pages for a calmer reading experience.
Real use cases
Use SigmaOS to research multiple topics in separate workspaces, compare products with Split Screen, or let Airis simplify a long article into a short summary. Lazy Search lets you hit the spacebar to quickly find tabs or bookmarks, saving time during busy workdays.
Key features
- Workspaces — Organize tabs into separate lists, like rooms in a house, for different projects or topics.
- Vertical Tabs — View all open pages in a vertical list, similar to a to‑do list, for quick scanning.
- Tabs as Tasks — Mark tabs as done once completed, or lock them to keep them open.
- Split Screen — Work on two websites side by side for easy multitasking.
- Lazy Search — Hit the spacebar to instantly search through tabs, bookmarks, commands, and the internet.
- Airis AI Assistant — Chat with any website, find information in your own words, and get paragraph explanations in context.
- Simplify Mode — Turn any website into a short interactive summary for a less distracting reading experience.
SaaSpartout Score
7.3
/10
Editorial score from our review methodology — not user ratings.
SigmaOS Pricing
SigmaOS pricing: Free. Billing model: Free.
Free Community Plan
SigmaOS offers a completely free Community edition with all core features: Workspaces, vertical tabs, tabs as tasks, Split Screen, Lazy Search, and the Airis AI companion. No time limit or credit card required. Download and start organizing your internet today.
Frequently asked questions
Is SigmaOS free?
Yes, SigmaOS is currently free to use. The Community edition includes all features listed on the website with no paid tiers mentioned.
What is SigmaOS?
SigmaOS is a productivity browser that organizes tabs into workspaces and treats them like tasks. It includes vertical tabs, split screen, and an AI assistant called Airis.
How does SigmaOS work?
After downloading, you can create workspaces for different projects. Tabs appear in a vertical sidebar and can be marked as done. Use Lazy Search (spacebar) to find anything, and Airis to chat with or simplify web pages.
Who is SigmaOS best for?
SigmaOS is best for people who manage many open tabs and want a cleaner, task‑oriented browser. It suits researchers, multitaskers, writers, and anyone overwhelmed by tab clutter.
What are the main alternatives to SigmaOS?
Popular alternatives include Sidekick, Arc Browser, and Opera’s Workspaces feature. Each offers tab management and productivity tools, but SigmaOS is unique for its task‑based tab workflow and free AI assistant.
What are the key limitations of SigmaOS?
SigmaOS is currently a browser for Mac only, and it does not support extensions as widely as Chrome or Firefox. It may not suit users who rely on horizontal tab layouts or need enterprise‑grade browser management.
